TSF Showcase 2025-07: TSF Monogatari

Takumi ga Seitenkan shite Fuck sare makuru Monogatari or The Story of How Takumi Changed Sex and Fucked A Bunch


As a TSF enthusiast, I just had to discuss this series eventually. TSF Monogatari is a specter that has been lingering over TSF Showcase since I started the segment almost two years ago. In part because of its reputation, in part because of its impact, and in part because the template for ‘modern’ TSF Showcase can be traced back to my 2020 Ramble on Metamorphosis. Also known as Emergence or 177013 if you hate classic literary references.

Created by Shindo L, Metamorphosis is easily one of the greatest erotic comics of the 2010s, and I wrote a 12,000 word article detailing why. The series is dark yet poignant, vulgar yet deliberate, and cruel yet heart-wrenching. It’s a title not for the feint of heart, featuring a lot of perverse sexual acts affecting an underaged character, but if I had to make a case for hentai as literature worthy of artistic protection, Metamorphosis would be my first choice.

So, naturally, I should be thrilled that the same creator also made a lengthy TSF comic, right? …No.

Back when I discussed Metamorphosis, I included a paragraph briefly mentioning TSF Monogatari and I was not particularly kind to it.

“…I really did not care for TSF Monogatari, which is one of Shindo L’s best-known works, having received an anime adaptation back in 2011 and 2012. Why do I dislike it? Well, it is a microcosm of just about every trope I hate in TG or TSF stories. It posits an interesting enough beginning, only to gradually devolve into the story of a young man losing their sense of identity as they learn to love sex due to their supremely sensitive female body and begin to adopt the role and personality of a whore. I will give the story props for becoming so extreme with sex scenes later on, but the protagonist is so cock-hungry, so dirt stupid, and loves sex so much that I found it hard to care about them or anything they stumbled into, because so long as they have a penis inside of them, they’re good, and they’re happy.”

Natalie Neumann, Natalie Rambles about Metamorphosis (2020)

This impression was based on my impression of TSF Monogatari when I read it sometime in 2018, and after delving deeper into TSF, after making myself something of a TSF analyst, I wanted to reassess this work. See if I was being too harsh toward it, if I was missing something, and also gauge how this series impacted other TSF works that have been released over the following 14 years.

While TSF comics have been produced since the 1970s— I’ve covered a few of them over the years— I view TSF Monogatari, originally published in 2010 and 2011, as an important work in discussing the modern history of the genre. Not only did it help popularize the term TSF, its release also coincided with a rise in the publication of translated and digital erotic TSF works throughout the 2010s, which has continued to this day. Admittedly, I don’t have hard numbers to prove this, but the more factoids I pick up, the more convincing this position becomes.

TSF Monogatari received a two part anime adaptation in 2011 and 2012, an uncommon feat for a hentai comic. The series has continued beyond its original run through a 6-part Append doujinshi series that has persisted for a decade. By its author’s reputation, the series has received additional attention over the years. If one looks over the stats associated with the series on hentai websites, and consider the fact that many uploads would have been removed over the years, I’d say the series has done very well. It’s even the number one “trans hentai” on the website of the official licensor Fakku! Which is impressive for a nearly 15-year-old comic.

So, was I too quick to dismiss TSF Monogatari and does the series have any hidden depth I was too chaste to comprehend? Or was I right to dismiss it as a work with good ideas, but an fixation on sex that proved to be detrimental to… everything else? Let’s find out by going over everything! All the appendices, and the anime!

It’s time for Natalie.TF’s definitive TWO PART look at TSF Monogatari!


TSF Monogatari by Shindo L

Before I begin, there are a few things I want to discuss.

One, this comic is no stranger to fucked up sex shit, and if you want something lighter and happier, come back in about four weeks. I’ll admit it’s weird how tonally dissonant some of these showcases can be, but being tonally dissonant is part of my brand at this point. I will of course be censoring everything with my little friend Akumako, but some imagery can be a bit extreme even when censored. Especially when you remember that these characters are largely high schoolers.

Two, TSF Monogatari’s timeline is a something of a whirlwind through the additions of the Append installments, which add chapters that are meant to happen between chapters of the original manga run. You could argue that when discussing this work, one should view it in chronological order, but I personally view the Append additions as somewhat clumsy retcons, and I’ll explain why when I get to them.

Three, I will not be discussing the additional stories included in the release of TSF Monogatari, Porn is Literature! or Hot Pot For One x Hot Pot For Two. They do not involve the main characters, do not feature any TSF, and would be irrelevant diversions for the purpose of this showcase.

Four, this series is officially referred to as TSF Tale and TSF Story, but this series is TSF Monogatari. It’s a silly distinction, as monogatari literally means story, but that’s the manga’s name! I don’t write tax porn law, I just follow it.


Chapter 1: Girl Let Me Touch You

TSFM begins with average, “wholesome” high school boy Takumi Musashino being hospitalized due to a cancer attacking his body, where the only available cure is an experimental drug with unknown side effects. Takumi, not wanting to die, agrees to take the drug, only for it to completely rewrite their body’s biology, transforming him into a young woman. Complete with a smaller skeleton, a fully functional uterus, and longer hair. Following this extensive off-screen transformation, the doctor responsible for this, Doctor Taijiri— who doubles as the school nurse— introduces Takumi class while they are wearing the oversized male uniform.

Already, there are a lot of holes to point at here, and the news is enough to rile up Takumi’s unsupervised peers. Girls are shocked at the fact that this is possible, as they should be, while the guys immediately try to take things into a sexual direction. Grabbing Takumi’s hair, asking to touch their boobs, and utterly disrespecting Takumi as a person.

Takumi consciously knows that they should not appease their male peers, but due to their empathy for these guys, he lets them cop a feel. They find the touch of their male peers to be stimulating, if not pleasant, while stating that they have not tried playing with their new body. Which… does not make sense now, and makes less sense the more we get to know Takumi.

This fondling continues until Takumi is rescued by their best friend, Ryou. A tall and masculine figure who tells them Takumi to assert themself, as unless these guys are told no, they will do whatever they want. …And the next page we see Takumi trying to eat some yakisoba bread for lunch while two guys are groping their tits. While Takumi is just tolerating this harassment, we are introduced to Anri Sogahara. The smart and beautiful idol of this school and Takumi’s classmate from the prior year. As she comes in to check on Takumi, she is immediately smitten by them. Particularly the contrast between their cute face and silky hair, baggy clothes practically falling off their body, and distinctly male posture as they munch on their lunch with one hand.

Anri is so smitten by Takumi that she asks them out to go clothes shopping after school. Something that Takumi, evidently, has not done since their transformation. Oh, so I guess that’s why Takumi is in their male uniform. Whoever’s looking after them did not think that a full body transformation warranted a trip to a clothing store.

At a trendy clothing store for young women, Anri dresses Takumi up, trying to find a style that works for them, before ultimately settling on a simple low cut dress and tank top combo, with a necklace for good measure. Distinctly feminine, and the sort of thing one would expect a teenage girl circa 2010 to wear. Takumi gets a few more unspecified outfits during their outing, and as they chat with Anri, this reality seems to sink in for them. That this transformation is real, and they are going to be living the rest of their life like this.

Takumi is reluctant, while Anri tells them to embrace their newfound femininity, adding that Takumi should probably avoid hanging out with their guy friends, as they’ll just be harassed at every turn. Takumi is not too keen on that part though, and thinks that they can stand up to their guy friends when they meet them over the weekend.

Takumi gathers three of their guy friends around the local Seven Eleven 24 Seven, showing off their new dress, saying that they’re now 100% woman, an “unsoiled maiden,” and while a bit boastful, it looks like Takumi— like she— is putting these guys in their place. …But then the guys start pulling a page from The Rapists’ Playbook and try to wear Takumi down. Saying that Takumi is so lucky to have such beauty, such coveted features, while voicing how clueless they truly are when it comes to women.

They are overwhelming Takumi three to one, playing the pity card, and are putting her in a situation she is ill-equipped to handle, having only been living as a girl socially for a few days. They start slow, asking to hold her hands, to practice confessing to them, nothing overt, before grabbing her titties and sticking fingers into her pussy, narrowly avoiding attention by blocking off the scene with their bodies.

Takumi screams at them to stop, but they don’t back down, and keep on abusing her, ramming a hand into her vagina, pulling out a dick, and shoving it into her mouth. All while saying that this will be the only time in their life they will get laid, and it’s not even a big deal for her. When, no, this is the start of a running theme. In fact, I have taken to unaffectionately referring to these wretched humans as the Rape Squad.

Takumi recognizes that she’s in a messed up situation, but through the power of peer pressure and compliments, she ultimately complies to her supposed friends’ desires, sucking one off before spitting up their cum into her hands. The rape gang then looks at her in this situation— tears welling in her eyes, sweat on her face, semen pouring out of her mouth as she gags in disgust— and plan to go in for round two. Fortunately, Ryou shoves them aside and pulls Takumi away, saying he can’t leave her alone with these guys for another second. And he is absolutely correct.

Ryou takes Takumi back to his house, where she thanks him, trying to downplay the fact she was raped before leaving to wash the scene of sex off of her. …Only for Ryou to yank Takumi away, smack her against the wall, and start accusing her of being an imposter. Ryou says that he has known Takumi since grade school, that he was a “real man” and would never act like Takumi acted back there. Like a “filthy whore who loved to get surrounded by men.”

Cornered, Takumi does not have the best retort and tells Ryou to leave, but Ryou only gets rougher with her, clenching his fists around her shoulders, instilling her with horror. Never has she felt this weak or vulnerable around a friend, and she crumbles onto the floor, begging Ryou to stop… only for him to tear her dress apart. Takumi is left sobbing and quivering after this, but Ryou does not recognize her distress, saying that she is already “soaking wet” from this situation, and uses this as justification rape her.

Yeah, this is easily one of my least favorite hentai tropes, as it is a justification used by rapists around the world every day, all because they either don’t understand or choose to misunderstand, human biology. In short, arousal— getting an erection or getting wet— is a reaction to many different things, and one of them just so happens to be when one is in a dangerous situation. This is a field that psychologists have been studying for decades, have observed for even longer than that, and it’s just something the human body does when in stressful situations. I’d go into more detail, but we’ve got too much comic to go through.

After convincing himself that it’s okay to rape a “whore”, Ryou escalates things by pulling out his dick and sticking it into Takumi, tearing her hymen in the process. The sudden sensation, invasion of a place on her body that Takumi had yet to explore, leaves her dazed, overwhelmed, and wafting in pleasure, unable to speak a full sentence as Ryou goes wild. Increasing his pace, squishing Takumi’s nipples, and verbally assaulting Takumi… while he himself is crying.

I believe the intention here is that Ryou is regretting what he’s doing. While he claims that Takumi is not the friend he used to know, I think he ultimately is lying to himself, frustrated to see his friend behave like this, and frustrated by his own desires desire to fuck her. After watching three of his peers run a train on Takumi, he reached an impasse and encountered Takumi in her bedroom to determine what their relationship would be. If she was still the friend he knew and could ‘man up’ he would back off. But if she didn’t, and she did not, then that just proves that she cannot the real Takumi, meaning it is okay for him to fuck her.

His repeated utterance that Takumi is a slut is his own way of coping with what he is doing, affirming that he is in the right. For, in his misogynous mind, it is wrong to rape an innocent woman. But a whore? Well, she’s asking for it, because whores will relish in sex regardless of its form, and you’re doing them a favor by fucking them. A man cannot rape a whore! Takumi, meanwhile, is awash in sensation for reasons I will get to shortly, and ultimately tries to comfort Ryou with a kiss, accepting whatever he plans on doing to her, even as he gets violent. He slams his dick deep until it smacks against her womb, before taking his hands to her throat, shouting that “you are not Takumi!”

Again, reading between the lines, I believe that this is all a defense mechanism for Ryou. He is justifying his reactions by saying that the girl he is fucking is not his friend. She is a deceiver. She is someone doing this for sick, perverse reasons. She deserves whatever punishment he, the righteous one, has in mind for her. And there is also an undercurrent of homophobia and transphobia that can be read into here. Because, on some level, Ryou is probably thinking that ‘if this is actually Takumi, a dude, and if I’m fucking him, I’m fucking a dude, that must make me a fuckin’ gay.’ (Remember, this comic came out in 2010. Average dudes in 2010 still talked like that.) His masculinity is being threatened, so he is strangling his partner, clinging onto his physical strength, because he lacks the emotional strength to accept his actions.

In this pursuit to prove himself as a man, Ryou then, with both hands still wrapped around Takumi’s face, unleashes his load inside her, while Takumi is left in a state of bodily chaos. Unable to control her orgasms, unable to speak, struggling to get the oxygen needed to fuel her body, before plopping onto the floor in a puddle of juices. Ryou looks at this convulsing woman, with bruises along her neck, and leaves, as he does not want to face the consequences of his actions, or the reality of the situation.

Only once he leaves can Takumi form any coherent thoughts, and she is left terrified of what happened. At her lack of strength, loss of control, and what it means if she can be taken advantage of like this, and left unable to stop, unable to control herself when thrust into situations like this.

However, she does recover, returning to school the following week in a girls’ uniform— given to her by Anri— while the Rape Squad from the 24 Seven fondles her like a pillow. She has succumbed to her fate as a sexual object in the eyes of her peers while her former protector, Ryou, looks away, not wanting to accept what he did.


Tangent: TSF Nymphomaniac Story

Typically, I like conveying information in the order the story lays out. But in order to analyze what just happened, I need to reach ahead to the start of chapter 3, where Doctor Taijiri reveals that her drug turned every inch of Takumi’s body into an erogenous zone. The details are conveyed via nebulous science that’s probably wrong, but basically everything she experiences is an exaggerated version of what the average woman would experience. Merely touching her ear is enough to arouse her, and when a guy sticks their dick inside her, she becomes physically unable to resist, as her brain becomes awash in dopamine and “narcotic substances.”

This means that what Takumi was not just transformed into a woman through magical drugs, the magical drug completely ruined her brain’s pleasure center. It turned her into a damn sex addict, unable to stop, no matter what. And this, more than anything else, is what TSF Monogatari is about. It is not a standard TSF Story, it is a TSF Nymphomaniac Story. And that is the core point of contention I have with this story. That it is too fixated on sex, on Takumi’s longing for sex, and on Takumi simply having sex.

Across my years of writing, I like to think I have made it abundantly clear how much I think sex can add to a narrative. Otherwise, why would I fill my TSF stories with so much sex? So I am not going to criticize a story for having a lot of sex, incorporating some extreme sex scenes, or making the protagonist ravenously horny. All of these things can be used to create something engaging, something with some thematic or narrative depth, or otherwise act as a spectacle of sex.

There is nothing wrong with creating a TSF nymphomaniac story where the protagonist is determined to be the greatest slut there ever was, and gets fucked six ways every day. However, a creator needs to figure out how to make this a compelling idea. Maybe with a detailed plot, delightful characters, or a batshit insane setting. None of which TSF Monogatari do particularly well.

Let’s start with the protagonist. Takumi is… pretty stupid. She’s reluctant to tell the truth when she thinks it would be too awkward or uncomfortable, constantly to her own detriment. She is incredibly gullible and trusting, allowing people to take advantage of her ‘kindness’ at very turn. She has no self-preservation instinct, wandering into danger with no plan or awareness of what might happen to her. She does not know how to express her feelings to others, or ask for help, even when she needs it.

Part of this can be attributed to her age, as Takumi is… probably under 18 for most of this story. But even for a high schooler, Takumi expresses such lack of self-awareness it’s hard to read her as anything more than dumb. Even when we get insights into her mind through narration, the most generous reading I have of her is that of a sexual masochist. This makes it harder to humanize her or want her to succeed as, per her evolving narration, so long as she is having sex, she’s living her best life. No matter who her partner is, no matter how much they physically abuse her, fucking is paradise.

Takumi also does not have an overt goal other than to keep on fucking for most of the series. She’s not trying to go back to normal, not trying to set up a new life for herself, she’s just getting thrown around and going along with it. And not even in a way that’s poignant or relevant to the genre it’s named after. The story simply does not say much about TSF, what it takes for someone to adapt to a new body and gender role, or anything remotely meaningful about anything.

The biggest stretch I could make is that the story is harkening back to the Greek myths surrounding Tiresias, a man who was turned into a woman for seven years and claimed that women experienced nine or ten times the pleasure of a man. …Except that theory is such a stretch that I’ve gone back and forward about omitting it three times.


Chapter 2: She is So Sexual Addicted

The second chapter takes place a month after Takumi has “turned into a girl”— keep the timeline in mind, as this will be on the test next week— and opens to the sight of Takumi masturbating. Her narration explains that she has been chasing after the high she experienced when she was with Ryou, and even masturbating all night long, jamming thick Sharpies in her holes, has not been enough to satisfy her. Leading her to engage in autoerotic asphyxiation, only stopping when she finds blood on her hands.

I would assume this to be from eight hours of nonstop masturbation, but Takumi brings this up to Anri at the train station, who dismisses this as just her period. A sign that Takumi is a “full-fledged girl” and capable of making a baby. Takumi, still clinging to her deceased masculinity, resists this idea, but before she can discuss this further, their train arrives and Anri is swiftly targeted by a molester, shoving his hands up Anri’s skirt. Takumi, out of jealousy disguises as chivalry, proceeds to guard Anri, putting her back against the molester and… if you are well versed in hentai, you already know where this is going. For the next 20 pages, the comic becomes a train rape hentai, and I have zero interest or appreciation in this porn genre.

Part of this is probably a cultural thing, as I’m too American, White, suburban, and queer to understand the cultural touchstones of a crowded train. (Though I’ve taken the L during rush hour a few hundred times.) But, frankly I don’t want to understand it, because this shit is gross, irresponsible, and disrespectful. Trains are public places, people are trying to work, this shatters the social harmony, and anybody who cannot keep their dick in your pants when on the train is a damn ingrate! If you’re horny, just keep your pants on and masturbate like an adult! Is there a defense for the artistic merits of train rape scenes, and are there good train rape scenes? …I dunno, probably, but this isn’t one of them.

It’s just an escalating sex scene where a faceless fat ugly bastard fingers Takumi, she gets hot and bothered, her sexual desperation kicks in, she eagerly invites this guy’s raw cock, and Takumi has a sexual awakening. She realizes that she adores cock no matter the form, and that she needs a partner to alleviate her overbearing libido, all while humping Anri against a train door. When all is said and done, Takumi is a sweaty sexed-out cum-filled mess, unable to stand or speak coherently. As Anri looks at her new friend in this state, she bites her teeth, heads to school, and meets with Takumi’s doctor, Doctor Taijiri, asking her to make a deal that will be relevant later.

The purpose of this chapter is to escalate things, for Takumi to willfully engage in more perverse sexual activities with another partner. Shindo L could have expressed this in any number of ways, but he chose to make it a train rape scene. However, Shindo L later created a series of additional chapters that did a far better job of escalating things in a more exciting, complex, manner. …That admittedly have its own issues, but we’ll get to that when discussing the appendices.

In the tankobon release, and official English release, the train rape chapter is followed by an extra tale, entitled -Takumi and Ryou-, which takes place a few hours later. During physical education, Takumi tries to pull Ryou aside to talk to him, but he’s playing silent, likely not wanting to think about how he raped his best friend. However, with enough yanking and puppy dog eyes, she eventually pulls him between two buildings and explains what happened to her on the train. Ryou rightfully asks what’s wrong with her, but Takumi is down bad and needs some sexual relief after what happened to her, asking Ryou to be with her one more time.

Ryou tries to apologize for raping her, saying he feels terrible, but as Takumi forgives him, he shrugs it off, saying that he wants to do it again. So, with hopefully nobody watching, he does just that. He pins Takumi against a wall, sticks his dick past her bloomers, the two embrace, and Ryou fills Takumi with sperm. Compared to the first time, this one is considering more sensual and loving, lacking the animosity of Ryou as he, presumably, moved past the rage and frustration that filled him back during chapter 1. Meanwhile, Takumi’s narration shows her still resisting the idea of liking guys, insisting that she still loves girls with big boobs, but her nymphomaniac reaction and elation at being railed betray her words.

It shows Takumi still gripping with her new sexuality, and while the resolution with Ryou would ordinarily warrant more of a reaction, this is at least something. Takumi is too stupid to realize she was nearly murder-raped. And Ryou is not given the opportunity to fully apologize before the girl he nearly strangled to death starts asking him for his fat-ass cock. Far from ideal, but without this chapter, their relationship would be far more contentious.


Chapter 3: Hi, I’m A Slut

Chapter 3 resumes a week after Takumi’s first period should have ended— let’s say two weeks— to the aforementioned reveal that Takumi’s entire body is an erogenous zone. A reveal made by the Doctor Taijiri, who demonstrates this by making Takumi squirm by pinching her ear. Despite this being as a serious problem that will obviously affect her daily life, Takumi downplays the doctor’s concern, and deliberately does she mention the “prickly feeling” in her stomach. A clear indicator that she got pregnant after having sex with two men during the day her period started.

Instead, Takumi only wants to bring up this medical issue Anri. She goes to see her, but learns that she’s in the hospital, meaning Takumi is on her own, and that’s definitely a bad idea. Her narration says that she doesn’t have anyone else she can turn to, and as we see throughout this chapter… Takumi desperately need someone to protect her.

Seconds after learning this, the three members of Rape Squad from chapter 1 lure Takumi into the men’s restroom to, what else, RAPE! Takumi tries to resist, but relents to their desires, lifting her skirt to piss in the urinal, hoping that will satisfy them. But, as is always the case with this genre of man, this excites the Rape Squad boys so much that they just gotta get their rape on!

Takumi, still consciously knowing that it feels superb when any five-inch fuckwit sticks their dong into her overly sensitive body, wants to resist. But she finds herself wrapped up in the experience. Either too intimidated to stand up to three guys, or too horny to deny even a sloppy fuck when presented to her. She’s aroused, and once the rank fish-smelling dicks start busting outta the Rape Squad’s drawers, she allows the three to gang bang her. With one in the front and two in the back, Takumi locked up like a Chinese finger-trap, the Rape Squad makes like The Lonely Island with a three-way climax, successfully losing their virginity together. …Well, except for the spiky haired guy, he lost it a few weeks back.

Emboldened by their ability to manipulate their former friend into being their personal sex toy, the Rape Squad throw Takumi’s cum caked body into a urinal and flush it, covering her in toilet water. Which would already be a callous disregard for Takumi, treating her like a damn Fleshlight… but then they muse on how they should let their other friends fuck Takumi after class. This kicks off a vicious cycle of rape and abuse that Takumi endures throughout her daily life. Daylong gang bangs, eating melon bread drenched in cum, getting fucked by the same salaryman every morning, and getting fucked so much that she thinks she’s been permanently stained with the stench of sperm.

Things escalate even further when the salaryman, emboldened by his daily raping of a child, takes Takumi to a love hotel. Something that she just kind of accepts, as Anri is still missing in action, and she is too horny to refuse anyone’s request. After getting fucked until she’s a soaking hot mess, something that’s not remotely new for her, the old man gives Takumi a proposition. An invitation to a host springs inn, promising her three days of constant sex with him and his friends.

Takumi knows that she is being invited to a gang rape vacation, yet she agrees. Saying that she decided “not to think about [this], or worry about it at all.” She is so far gone, so accustomed to being fucked for free, that she agrees to go to, effectively, a fat ugly bastard convention as the guest of honor. Because she is that hungry for sex.

This is the point in the story where I find it very difficult to take the story, or its protagonist, even remotely seriously. Takumi is actively endangering herself, had every opportunity to say no, and she decided to just go through with it, knowing she will not get anything more than maybe some good food for her trouble. She’s not even being a whore or prostitute— she’s not getting money or favor— she is just a sex-crazed moron who must have some self-destructive kink.

At the inn, Takumi makes her debut by entertaining 20 or so old guys with her naked monkey dance— my term— balancing a plate in one hand while covering her pussy with another. All as the men clap, cheer, instruct her to bounce on one leg, and she drops one of the plates. A transgression they punish her for using a nostril hook that, because her entire body is an erogenous zone, is enough to put her into an erotic daze. The frantic movements, leering eyes from the old men, and their constant clapping is enough to make Takumi soaking, offering herself to everybody in this room. And from there, as Takumi puts it, the party really gets started!

What follows is a barrage of sex so hyperbolic and genuinely mean, if not demeaning, that I have to appreciate it on some level. Just seeing men grasp at Takumi’s body, shoving their dicks, lips, and fingers at whatever part of her supple fertile flesh they can latch onto, not even bothering to take out the nostril hook. Takumi degrading herself by begging for the men to fill her “piggy pussy” with their “smelly old man sperm.” Her hopping from dick to dick while chilling in the onsen. The men doing that IGN cheering meme pose as they see Takumi’s body covered in sushi which… is genuinely hilarious. When you have characters using chopsticks to dip sushi into a girl’s pussy, it’s not even about the sex anymore, it’s about the erotic spectacle. And I think that’s cool!

After this weekend-long-fuck-fest, the story cuts ahead to three months after Takumi “became a girl.” Takumi is still going to school, but has stopped attending classes, instead spending each day in the boy’s restroom getting mercilessly fucked. Her body is covered in degrading messages, her ass is planted squarely on a toilet, she still has her damn socks on, and the pièce de résistance is the car battery hooked up to her thighs, because why the fuck not? Why not just send 100 mA straight to her clit at this point!

Takumi has accepted herself as something less than human. A cumdump. A living cock sleeve. An inverse toothbrush! She is so addicted to the act of sex, to feeling good, that she has been reduced to a creature of pleasure and lust, constantly begging for more and viewing any sensation as a good one. Even as the car battery falls into the toilet, discharging and filling her with so much electricity it shocks the dudes fucking her, she just twitches and moans, remarking how she has never felt so good in her life. You could try reading into this… but this is just more erotic spectacle. The sight of a woman, as degraded as she can be without being maimed, convulsing in pain and pleasure as her body gushes in every way possible.

Props to Vladyslav Lukaschevych for the lettering. They did a fantastic job.

As far as I’m concerned, the story could just end here with Takumi becoming such a sex addict she fucking dies, but Doctor Taijiri fortunately unfortunately recuses her, cleans her up, and recommends that she avoids intense sexual activity, as she is pregnant. …Yeah, no shit Sherlock! She could have been impregnated at any time starting in chapter 2, and there are probably hundreds of potential fathers at this point. But Takumi, who I think has brain damage at this point, is shocked at this news! Another example of why Takumi needs an adult!


Chapter 4: Hot Sex On A Platter

Before we begin, I need to laugh at the misplaced conviction of this chapter to call itself the finale of the story, when we are not even a third of the way done here. Starting at four months since Takumi underwent their transformation, she has dropped out of school and taken up the mantle of a high class sex worker. With a stylish boa, pearl necklace, a classy up-do, a top covering the absolute minimum, and golden heels with a chain around them. To add to this profound quantity of class, she has been holding herself as a pregnant high schooler, attracting only the most enviable of clients, and spending every day relishing in the throes of sex.

Or at least that’s how it seems, as the narration reveals that she is actually terrified of what the boys at school might do to her if they find out she’s pregnant. Furthermore, she’s all on her own, so she’s naturally scared, confused, and nervous about what is going to happen to her, with nobody to turn to and no friends she can reach out to. All the constant sex is making her feel sick, and while she is making good money, she really has no friends and no support. Including no parents, as they are never seen and barely mentioned throughout this story.

I understand that Japanese work culture often prevents parents from spending time with their children, especially when they are teenagers, but Takumi just underwent a first in human history transformation, and clearly needs support to get through this. I can only assume that Shindo L was simply not interested in pursuing this angle. In explaining why Takumi’s parents did not buy her new clothes or a new uniform. Why they never questions how she constantly smelled of cum. Or why she stopped attending classes to become the fuckable human toilet of her local school. …But I think the story is weaker for not addressing this. I won’t say it’s less realistic, as realism died on page two. But it shows a lack of thought, or care, put into Takumi as a character and how they exist in the world.

Oh, and the narration also feels the need to clarify that Takumi has finally made up her mind to become a girl. Which… girl, you are the queen of gang bangs, what are you even talking about? You trans-ed your gender back in chapter one!

The story then cuts ahead to three months later, from November to February, marking the seventh(?) month since Takumi was transformed, and see that the students at the school have been making due without their little ‘cock sleeve.’ Also, Doctor Taijiri is now a regular teacher. Yes, a specialized doctor, who doubles as a school nurse, who abandoned her most important patient, in order to teach a bunch of horny high schoolers about biology or something.

Ryou seems to be bummed out that Takumi has been missing for so many months, not even going to sports clubs, though this may be foreshadowing for something that happens way later in the appendices. As he sulks, he is greeted by Anri, finally discharged from the hospital, and he gives her the full story. Her face is left somewhat obscured, leading the reader to guess what happened to her, but… we’ll get to that.

We then have our third time jump this chapter, where Takumi narrates that five months have passed since she left home, and it is already summertime. …But per what we learned in this chapter, that would make this April, which is in no way summertime. At least not in Japan. Gah! Point is, this now month eight, and Takumi sure looks eight months pregnant. She’s working the streets in a cheap skirt and top that leaves her belly wide open, meeting with clients with particular tastes via her website, and fucking them in their cars. A pretty logical continuation of the sex work she was doing previously, and the only way she can think to make money.

As she goes through the motions with her latest client, she helpfully goes over her finances. Explaining that a private session like this makes her 50,000 yen, she has spent 80,000 on hospital bills so far, and expects the costs of giving her child to be 400,000 yen. Now, I have to balk at the idea of Japan emulating America by assigning a price tag to giving birth. (You were the chosen one! Don’t betray the fantasy told to me by your soft power!) But I also need to highlight how Takumi seemingly has no money saved up at this point. …After running the streets for a solid five months, despite being a sex worker with a supernatural advantage.

Now, I’m not going to say that being a pregnant teenage sex worker is easy— it probably has a lethality rate on par with being a soldier, and even higher rates of PTSD. But if you are making 50,000 yen a fuck, how the hell aren’t you accumulating any savings? I know Takumi is dumb, and I insist that Takumi is dumb, but this is a new level of carelessness.

Well, we actually see an answer to this valid question during her car sex session with her latest client, who gets chatty with her as he slorps his dick to and fro, and uses her sex addiction to get her to walk back her fees. First by eschewing the cream pie fee, and then by getting her to agree to doing it for free. Takumi knows this is stupid, but her body is so desperate for sensation, all riled up and so close to a climax, that she simply cannot help it. She’s an addict who needs her fix and is willing to throw away hundreds of dollars for it. It’s dumb, but that’s what addiction does to a person.

Forlorn and worn out after an afternoon of sex, Takumi heads to a net café to check her site and conduct her business. …Remember, this comic was released in 2011. Smartphones were for rich bastards and Japan was still all about flip phones. She finds a new request waiting for her, and while she’s exhausted, she needs to make some money, and heads out. For herself, and for her unborn child.

Her latest job takes her to the luxury suite of a high-class hotel, where she is greeted by none other than… Anri. Takumi is confused by this, embarrassed to be seen in such a state by the girl she always had a crush on— the girl who taught her how to be a girl. Unfortunately for her, Anri already knows everything. What happened with Ryou, the train molester, the toilet sex, filming an underground video for sale, and even having sex with the principal to avoid getting expelled. …That third point answers one question but raises another. How are you so bad with money Takumi?!

Despite being well aware of everything Takumi has been up to, Anri still reached out to her, but not just because she cares for Takumi. Because she wants to be with her. Takumi does as Anri requests, stripping off of her skirt and underwear, presenting herself for Anri to examine with gusto as she explains she wanted to do this since Takumi’s transformation. Anri says that she thought that she lost Takumi to men, but Takumi explains that, even though she has been with so many guys, she always loved Anri, and she always had a crush on her. She always wanted to be with her.

More than pleased to hear this, Anri takes off the loose robe she was wearing and reveals… her two-foot-long futanari cock.

Daaaaaat’s right! Remember how she went to visit Doctor Taijiri at the end of chapter two? This is the end result of that. With the help of the doctor, she underwent the same generic manipulation as Takumi, expecting to become a complete man, but instead the treatment transformed her sex into— wait, no, no, she still has her vagina. Meaning that this drug transformed her clitoris into a monster cock… and gave her both balls and a prostate, presumably summoned from the ether of the world.

As a fan of transformation in general, who has seen over a hundred dicks turn into pussies, and a couple dozen pussies turn into dicks at this point, this makes no goldarn sense. And I do not care. This is full on erotic spectacle. A tall gorgeous dark-haired women with a dick so girthy, meaty, and powerful that it’s thicker than her arms, and tall enough that she could do paizuri on herself.

Wielding her penis like a weapon— because it is one— Anri smashes it into Takumi’s pussy with a mighty glorp, and of course she just loves it. Even as Anri is grinding her cock on Takumi’s uterus, looking like it’s going to tear through and pulverize this unborn child with vigor. Even as she grabs Takumi’s tits and shoves the milk out of them, the touch of Anri, the feeling of her cock delving into Takumi’s deepest depths, is enough for her to give herself to Anri, begging to her hers forever. …Though, I have a feeling that Takumi would say that to anyone with more than six inches.

Takumi clenches down on Anri’s cock as she commits herself to her, and with tensions high, they are swiftly brought to a climax, both bursting in a wet hot mess before flopping down on the bed together. It took a while— honestly, an embarrassingly long amount of time considering Takumi was a public sex worker— but Anri finally found Takumi, and rescued her from a life on the streets.

Months later, marking the fourth time skip in this chapter, things resume at a chapel. Takumi had given birth to her child— a young boy named Ryousuke who, as the name implies, is Ryou’s uke son. The Rape Squad are all decked out in suits, because I guess they are the closest thing Takumi has to friends. And Takumi, looking pretty in her wedding dress, has Ryou serve as her father, walking her down the hall to meet with Anri, dressed in a suit. …Because I guess Anri changed her legal sex to become a man. Damn Japanese-American constitution.

As This sight plays out, Takumi reflect on her experience. saying that despite everything that happened, she’s glad she lived the life she had, and that she became a girl. …Which I think is meant to be a joke on some level, a pastiche on other TSF stories because… what kind of ending is this supposed to be?

Takumi became a hypersexualized fuckable toilet in the shape of a human, became a sex worker who would fuck clients for free, and then was saved by a rich girl with a cock that could sexually murder a mountain lion. …Also, she had a baby with her ‘best friend.’

Fortunately, this is immediately followed up on with a chapter that sets the stage for… the other half of the series.


Chapter 5: ♥~Forever We Can Make It~♥

This is more of an extra side thing than a proper chapter, and it mostly exists to set up a new normal for the series to build upon. After getting married, Takumi and Anri moved in together in nice house bought and paid for by the pharmaceutical company— even though Anri is rich and could just use daddy’s money. How do you think she afforded the luxury suite and monster cock? With this big new house of theirs, Takumi has been leading a life dominated by two things. Nonstop lovemaking with Anri and being a housewife, making food, taking care of little Ryousuke while Anri continued attending school.

At only ten pages, this chapter could get by without any sex scene, but Anri feels the need to fuck Takumi as she is breastfeeding. Teasing her for spending so much time with her child. Threatening her to not cheat with “other men.” And saying effectively demanding Takumi to get pregnant with her baby before creaming in her pussy. …Wait, how is Takumi not already pregnant? Anri’s fucking her every night! Anri probably fucked her an hour after she gave birth to Ryousuke!

After Anri gets her fill and goes to get ready for school, Takumi then checks the answering machine for a message from Doctor Taijiri, informing Takumi and Anri that they developed a way to reverse their transformation. Takumi can go back to living as a man, Anri’s dick can be re-clitorized, and before the message can even finish, Takumi erases it, for they are both happy how they are, and are going to stay like this now and forever.

This is then followed by a postscript non-canon section where Takumi, Anri, and the female leads from the side stories reflect on this book. I normally would not mention this, but it’s a weirdly introspective piece. Musing about how TSF is niche but growing in popularity. Defining what TSF even means— Trans Sexual Fantasyand a synonym for TG. The prospect of translating ero manga to other languages via digital imprints, limited market potential, and how this work will probably be illegally translated (it definitely was).

INSIGHTFUL!

Remembering this comic was published in April 2011, it feels weirdly prophetic, predicting the rise in official hentai localizations. Though it did get one thing wrong in predicting it would only be distributed digitally. There are, in fact, a growing number of erotic comics that are getting localized physical releases… including TSF Monogatari.

…Now would be a great time to show my physical copy of the manga, but it’s out of stock and I already spent nearly $70 on digital copies of the series.


Conclusion: Is TSF Monogatari Good?

Viewing the series strictly through the main, original, release, was I wrong about TSF Monogatari? Is it good, actually? …No, not really. I was pretty much on the money back in 2020.

The story starts promising with its first chapter offering quite a bit to look into, but it quickly loses sight of being a more grounded, nuanced, and character-driven narrative, choosing to become a spectacle of sex— a sextacle— by the second chapter. I can respect the artistry behind the creation of these scenes— they are a testament to the skill and passion of the creator. And while I have not discussed the art much in this showcase, I think Shindo L is a great artist, and his skills shine even here, so early in his career. But as a story? It’s outlandish and wild, yes, but never quite far enough for it to become silly or absurd, and the tone lacks the same levity as, say, Transformed into a Busy Blonde.

I have joked about Takumi being an addict thus far, because they are, yet Takumi never really seeks help or suffers from this addiction in a way that feels grounded or meaningful. They are just really horny and really stupid. I don’t find it silly enough to be camp, but it is too absurd and exaggerated for me to view it as a drama or tragedy. It occupies a slimy middle ground that I do not particularly care for.

Though, my biggest point of criticism with it is how functions as a TSF story. For a series named TSF Story, I have some lofty expectations for it, and I feel it fumbles its premise pretty early on. Starting with… the first page. While we see glimpses of Takumi before her transformation, both in the main work and in the appendices, there is virtually no time between her introduction and her being a bona fide 100% woman. This is not strictly a flaw, but it limits our ability to gauge who Takumi is as a character and how this transformation affected her.

It reminds me of a line from the afterword of Sex Change Diary by Tsukiyomin and Tsukiyono Marron. “Personally, I don’t think it’s very interesting when the character is suddenly a girl right away. It might as well be a normal story about a girl after that.” And I have to agree, as much of this story could be rewritten to remove the TSF element and someone unfamiliar with it would be none the wiser.

I will say that the first chapter does function fairly well as a TSF story. Takumi is totally clueless about how to be a woman, learning from a female friend, and right as she gets a dose of confidence, she is taken advantage of by men. Then, after being saved by a man she thought she could trust, he raped and nearly killed her. An experience that is… unfortunately common for women, especially in certain parts of the world. Like America!

A DEFINITIVE Female Experience!

Once chapter two begins though… it just becomes exaggerated porn with a TSF as a background element. Takumi is so enamored with being a woman she is trying to become a SSS-tier slut. She is not trying to make the most of her new form and extract idiot men for favors, services, and capital. Takumi is just a woman with a hypersensitive body and a sexual appetite that simply cannot be quelled. Yes, she eventually learns to love being a woman, learns to love the baby that grew inside her, and so forth. …But that’s something billions of women around the world and throughout history have all experienced, and a firm background element next to the deluge of sex.

You could point at the futanari element as being TSF, but, as I detailed in a recent Rundown, while futanari is by definition TSF, it is not used the same way and lacks the spirit of TSF. In fact, that’s a good way to describe my thoughts on the TSF elements after chapter one.

They are present, TSF Monogatari is, by my own definition, a TSF story. But it loses the spirit of a TSF story as it goes on. It does not want to explore the broader ramifications or what it means to undergo a fantastical transformation of sex. It wants to tell the story of a high school girl who, through perversion and abuse, is pulled into a world of obscene sex. A world where she is degraded, toyed with, and left selling her pregnant body on the street, desperate to make ends meet.

…Wait a fucking tick!


Postscript: TSF Monogatari is a Prototype of Metamorphosis

Two icons, joined at the hip.

This is something I realized fairly early on into re-reading this comic but TSF Monogatari is not interested in being a thorough, let alone definitive TSF story. Instead, looking at it retroactively, it is very easy to view the series as a prototype for Shindo L’s most famous series, Metamorphosis. A series he started two years after finishing TSF Monogatari, and the two more than a few thematic and narrative overlaps.

Both Takumi and Metamorphosis’s protagonist, Saki, are average people who undergo a radical change in experience at the start of their stories, making them sexually desirable. Both are raped at the end of the first chapter, ultimately enjoying the experience despite the pain and breach of trust they experienced. Though they get there in very different ways, both parties are subjected to routine sexual abuse by the boys at their school, including getting raped in the men’s toilets.

CINEMATIC PARALLELS!

Though Saki, is nowhere near as sensitive as Takumi, she does have a body with multiple ‘tender spots’ that are manipulated by the men who abuse her. They both leave school to embrace the world of adulthood, taking up the mantle of prostitution. Takumi is a bad prostitute because she loves the act of sex and dopamine hit due to a biological sex addiction she did not ask for. Saki’s vice is her drug addiction, something she was put on by abusive men. Takumi runs away from home to pursue life as a sex worker due to… unspecified reasons. While Saki was pushed away by her rapist father and lying mother. And both wind up on the streets, late into their pregnancies, having sex with unsavory people in unsavory places. Except Saki fucks men in boxforts, while Takumi fucks men in their cars.

Now, the endings are completely different, and tones are almost opposites of one another. But I think these are more than genre similarities and, as a creator myself, I understand the allure of wanting to take a familiar idea and shift it into a different direction. I can respect TSF Monogatari for having these different goals in mind, though, having read through it, and having written however many thousands of words about it… I do not think it goes into a particularly good direction.


Clearly the story of TSF Story resonated with a lot of people, and while I might not see what they see, I can recognize the competencies that are present. Plus, by not fully grasping the TSF concept, I’d theorize that it might have inspired other creators to do better, to tell deeper and more involved TSF narratives. …Now, can I prove that? Nope! And do I wish this work, for being so well known, handled the subject matter with more curiosity? Abso-goldarn-lutely. But even at my most negative… I think the series is just alright.

…As for the Appendices? Those are a whole ‘nother story, and seeing as how this installment of TSF Showcase is getting a bit long in the tooth, I’m going to break up this one between two weeks. So I’ll see you on July 1st, where I will cover what came after TSF Monogatari, and break new ground by discussing an animated hentai here on Natalie dot TF! Also known as Natalie dot Transformation Fantasy! …Also known as ‘Natalie, The Fuck?


Continued in TSF Showcase 2025-08: TSF Monogatari Append.

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This Post Has 4 Comments

  1. Ouran Nakagawa

    TSF Monogatari is the Joker (2019) of genderbender TSF. fr!

      1. Speed

        All this is supposed to be a hentai manga +18, not a fantasy book with happy endings as if it doesn’t happen in real life.

        1. Natalie Neumann

          Uh, I did not think it should be a “fantasy book with happy endings.” But it actually is a fantasy book— that’s what the F in TSF stands for, fantasy, and I would say it ends on a very happy note. So I have no idea what you are trying to say!