
Why did I become a girl?I am the Chikan who has brought many women to orgasm, and today I will be brought to orgasm instead.The woman who calls herself a god wants me to collect 1000ml of sperm to become a man.Damn! I want to fuck her, but where is my dick?Ahhhh! My proudest penis is gone!
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About
The classic novel of sexual transformation "痴漢達人變女生"(Molester Master: Transformed into a Girl), which has been circulating on the Internet for more than 13 years, has been gamified by the author himself! It is not just a visualization of a novel, but a rich, interactive experience where the story has been completely reimagined and rewritten to fit the game. So if you like erotic games, this title will certainly offer something that hits all the right “spots” —whether you're looking for excitement or pleasure.
The protagonist is a Chikan who wants to conquer all the women in the world for his own desires and ambitions, but one day a woman who called herself God appeared and turned the protagonist into a woman, demanding that the protagonist collect 1000ml of sperm within 2 years, or else he would die.
Just when the protagonist thought that turning into a woman and collecting sperm was strange enough, he become entangled in even more extraordinary events. By a twist of fate, he comes across the "Book of Eibon" from the Cthulhu myth, a book that reveals to the protagonist the desired world of "The Northernmost Continent: Hyperborea."

It's up to you if you want to satisfy your curiosity and risk lowering your SAN to explore the legendary Hyperborea, or if you want to focus on being an ordinary man and collect 1000ml of sperm to become a man again.

"All the women in the world are my playthings! …wait, where's my penis? Can I only get pleasure from my vagina now? Nooooo~"
The president of the Chikan Association, having toyed with countless girls, was punished by the gods and transformed into a girl. Now, with no penis, he must rely on her vagina for pleasure. Following the gods' orders, he collects sperm and searches for the truth behind her transformation.

"Big sis, you really love cock~❤"
The top courtesan at the maid café 'Black Feather Café'—after the protagonist joins the café as a maid, she comes to regard the protagonist as an older sister.
Every month, the café holds a "Fan Appreciation Festival" where only customers with enough accumulated spending can participate. It is said that this special event is the reason why Black Feather Café stands firmly on the rankings.

"W-Wait, no hotel hostess would behave like this!!"
A dedicated and responsible hotel manager, due to the protagonist's outstanding performance, mama-san agrees to the protagonist's request, which is to have access to Luna's body.

"The girls you've toyed with are really pitiful... Let’s see how it feels for you to experience what they went through! "
The powerful being that suddenly appeared in the protagonist's room turned the protagonist into a girl, and then demanded that the protagonist collect 1000mL of sperm within two years, or else she would die when the time is up.

"My disciple, your potential must be greater than this."
The protagonist is invited to join a private tutoring institution, the "Mobius Academy," where the teacher in charge of martial arts instruction will gift her a mysterious outfit after meeting certain conditions. This outfit is a key item for unlocking the mystery.

"Miss, does this feel good?"
Guided by her colleague Nina, whom she met at the hotel, the protagonist decides to visit a host club to meet a male host she got acquainted with. She thought it would just be a casual night of drinking, singing, and chatting with the male hosts, but she didn’t expect... though it seems like it doesn’t matter now? After all, as long as it feels good, what’s the harm?

"Lya looks most irresistible with her hair flowing loose…"
The protagonist goes by the name "Lya" at the maid café. Akashi, an ardent admirer of the protagonist, frequently finds himself lost in passionate debates with another fan about whether Lya looks even more enchanting with a high ponytail or her long hair cascading down freely. But beneath his cultured exterior, could he be nothing more than a slave to his own desires, drawn to her beauty and charm?
*The above are just a few characters. This work will introduce many more interesting characters, so come and explore them!
The game lasts two years and offers six different itineraries to explore: Research, Convenience Store, Live Streaming, Maid Cafe, Hotel, and Selling Sex. Unlike a traditional simulation game, each of the six itineraries has its own plot and H-events, and the order of execution and decision-making can have multiple effects on the outcome.

In terms of numerical correspondence ending, this game adopts the open-world approach of American RPGs. That is, as much as possible, the player's decisions during the game can be reflected in the endgame, rather than a set of values corresponding to a single game ending.

◇34 CGs, including 19 exquisite SPINE: H dynamic, other HCG also have to produce simple shadow frame animation or vibration effects, hoping to increase the practicality of this work, the total difference of more than 1,000.
◇150,000 words of game text, thick and rich playable content.
◇The heroine has seven outfits to choose from: daily wear, maid, cheongsam, bikini, fallen angel, dress, and nymphomaniac, some of which are customizable, or simply nude.
◇Sexual Transformation, Cthulhu Mythos (Hyperborea)

◇Immersive TRPG-style experience
◇Nearly all of the HCGs have interactive elements, greatly enhancing the practicality and immersion.
◇Game endings: True Endings x1, Good Endings x2, Usual Endings x1 (Boy Status, Girl Status), Middle Endings x3, Bad Endings x1, and a series of Future Talks reflecting the player's choices during the game.

Hello! I’m FoxSister.
I’m one of the early TRPG promoters in Taiwan and have previously taught at the university level.Because I enjoy adult content, I’m now fully focused on creating adult games.I hope everyone who plays my work can have a fun and enjoyable time.
To make this game the best it could be, I worked with professional Japanese voice actors, and the result completely exceeded my expectations. Take the main character, Beryl, for example—she uses several different identities throughout the story: "Lya" the maid, "Rose" the hostess, "FAngel" the livestream influencer, and more. The voice actress actually created different vocal tones for each of these roles, and even the sounds she makes in the more intimate scenes are distinct. I really hope players will buy the game and enjoy this amazing voice acting.
The voice given to Siena is absolutely mesmerizing—it's so intoxicating, it makes you crave the feeling of holding her close, wanting to keep her in your arms forever.
Of course, the other voice actors did a great job too. Honestly, I think the voice work is on par with what you'd expect from professional anime voice acting, and I'm really happy that an indie game can achieve this kind of quality.
I spent an incredibly long time working on the H-scenes and gameplay because I really love H-games and wanted to make sure all the fun elements were in there. It was a tough process—whether it was designing the gameplay, or working with the CG artists and animators, it took a lot of time and energy.
I didn’t neglect the story either. I know that a shallow, mindless plot isn’t going to cut it, and I wanted players to still remember the game fondly years down the road. So I came up with plenty of interesting stories for players to explore. The game is packed with content, and it takes multiple playthroughs to experience everything. This ensures that the game has great replay value.

The most important thing I’ve noticed is that many H-games often stick to a single ending system, where you can only experience one conclusion (or sometimes, there's only one possible ending to begin with). This makes many of the choices throughout the game feel almost meaningless, because in the end, you're bound to one outcome. I’ve designed my game more like a TRPG, where, in addition to exploring the gameplay, the choices you make will directly influence the epilogue. Your decisions will genuinely shape the story and create lasting changes, making every choice feel significant.
Knowing that you’re all busy, I’ve included a one-click unlock feature after completing the game, giving you access to all the HCGs. Almost every HCG has been designed with replayability in mind, so if you're the type of gentleman who loves to indulge, you'll have plenty to savor.
However, before you rush to unlock everything, I strongly recommend playing through to the true ending at least once. Trust me—it’s worth it. The emotional payoff will hit you in a way you won't expect. I’ve been crafting this story for 13 years, and it’s finally come to life in this game. So please, take your time and truly savor every moment of this experience. You won’t regret it.
*Endless Mode will be unlocked in a new playthrough after clearing the True Ending.
If you’re having trouble reaching the True Ending, there are player guides available on the Steam Guide page.
*For the best experience, we recommend exploring and discovering things on your own during your first few playthroughs.
Based on community feedback, the multi-playthrough experience has now been improved.
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: Traditional Chinese, English, Simplified Chinese, Japanese**languages with full audio support
Engagement
Hours played at review time, across 41 reviews with recorded playtime.
Reviews
Themes across 41 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
positive critical· bar length = how often the theme comes up
Reviews
很耐玩,就是那个投骰子和质量不太行的AI动画比较一言难尽
If you're looking for a game with competent gameplay and some H-scenes, you're looking in the wrong place. If you're looking for what is essentially a visual novel with a good art style, decent writing, competent voice acting (in Japanese), and some light management gameplay layered on top, you might be looking in the right place. There's a ton of reading involved, but the quality of the writing isn't good enough to justify its volume; there's some management gameplay involved, but you're completely lost without any idea of what you should be doing or why. Playing this feels like a chore- which is a shame, because the H-scenes are genuinely excellent, there was care to add quality voice acting, the art style is good... there are some promising elements here. As a game though, it's pretty terrible.
Best game with wild hentai momments. Love to play game like these. 10/10
是个没接触的类型,可以尝试,可以体验,能带着局外人的眼光看这个游戏个人认为还不错,但我接受不了性转,尤其是被男的勾搭,因为是我玩,如果是别人玩我应该能冷静的看,男主有异能是电车痴汉会的会长,又能让女人发情的能力,但被上帝使者惩戒在生活中格式化了他作为男人的信息,变为女人,所设定2年内必须要收集1000ml的液体,从这点上我个人就接受不了,后面换装直播然后被男生喜欢更让人恶寒和皱眉了,向开局天赋都没用,应该设置后门的,能力足够是男性,不够是女性的两种视角,变女我是没任何兴趣打下去这个游戏的。
画风无敌
棒棒哒
저는 위아래 대신 세모하겠습니다. 게임이 의외로 쉽습니다. 늦어도 94일차 전(=사실상 95일차에 끝)에 아레나에서 3회(주로 따지면 3주) 이기면 됩니다. 그리고 이기고 난 후에 97일차에 그냥 넘기면 트루엔딩이라고 나오면서 무한모드가 열립니다. 다만 지식이나 여러 능력치(500), 힘 같은 기술치(80)는 최대한 많이 꽉 채워야 한 것 같습니다. 이거 알아낼려고 뺑이 친거 짜증나서 그냥 이렇게 적어놓습니다. 여러 명의 일러스트레이터가 참여했기 때문에 화풍의 일관성이 다소 없는 부분 이 말은 정말 사실입니다. 요약 : 이게임의 끝은 97주차가 아니다. 95주차 전에 아레나에서 3번 이기고 궁전?을 복구하면 트루엔딩이다. 다만 능력치는 가능한 많이 꽉 채워두어야 한다는 조건이다. 아 그리고 쉽게 가려면 초반에 카리스마와 부잣집을 선택하는게 가장 합리적이다. 초반에 나오는 년 하라는데로 하면 등신이다. (1000 채울 필요 없다.) 게임은 매주 6000씩 꼬박 꼬박 받아가는데, 그냥 초반에 방송장비사서 방송하면 된다. 근데 초반에는 벌이도 시원찮고 한심해보이는데 이게 제일 좋은 수입원임. 참고로 중간에 밴당해서 1번은 수익이 0이 나오는데, 그 다음부터는 돈이 들어온다. 진요약 : 초반에 나오는 년 말은 무시하고 능력치를 가능한 많이 채워서 95주차 전에 아레나에서 3번이기면 끝이다. https://steamcommunity.com/sharedfiles/filedetails/?id=3553073648 이게 가장 쓸모있는 가이드...
This is a good game, but not have an endgame (post-game). It just finishes and that is all, you can't have endgame fun
I really love this game so much, i hope they add an endless mode fr
Good game
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Trends
Concurrent players on Steam, sampled daily since tracking started.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.