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Summary

No matter how hard he tries, Aihara Takuya is just a weakling. Not only the boys, but the girls pick on him too! His step sister, Natsumi, the president of his school's chemistry club, Mami, and even his childhood friend, Asuka, they all enjoy teasing him. Just when he thinks his life couldn't get any worse, he spills some vials of chemicals while cleaning up his school's chemistry room, splashing some onto his body as well. He looks down to assess the mess, and finds a new pair of breasts sticking out of his chest! He grabs them in disbelief, and discovers that he's been transformed into a girl! And so begins Takuya's hilarious erotic adventure to search for a cure. Along the way he discovers a whole new world of experiences, some welcome and others not. Will he find a way back to normal, or will he be trapped in a girl's body for the rest of his life? [Edited from JAST USA]

Etsuraku no Gakuen
Etsuraku no Gakuen
NAN%
Tags
  • Consensual Sex Involving Drugs
  • Fake Choices
  • Masochist Heroine
  • All-girls School
  • Sex Involving Drugs
Rating 5.50186 Users
Escalation ~Kyouai no Fugue~
Escalation ~Kyouai no Fugue~
NAN%
Tags
  • Lesbian Sex Only
  • All-girls School
  • Girl x Girl Romance Only
  • Ojousama Heroine
  • Harem Ending
Rating 5.44328 Users
Soukou Kijo Iris
Soukou Kijo Iris
NAN%
Tags
  • Completely Unavoidable Protagonist Rape
  • Brothel
  • Prostitute Protagonist
  • Extraterrestrial
  • Mecha Pilot Protagonist
Rating 6.11290 Users
Summer Session
Summer Session
NAN%
Tags
  • Gauge Display
  • Dating Simulation
  • University Student Protagonist
  • School
  • Character Profiles
Rating 5.4822 Users
Seiai Gakuen Fechika
Seiai Gakuen Fechika
NAN%
Tags
  • Heroine with Leotard
  • Heroine with Visible Panties
  • Cosplay
  • School Life Comedy
  • Group Sex
Rating 6.16690 Users
Mashou no Nie
Mashou no Nie
NAN%
Tags
  • Mercenary Protagonist
  • Queen Heroine
  • War
  • Sexual Slavery (Choukyou Variation)
  • Heroine with Armor
Rating 6.03440 Users
Little My Maid
Little My Maid
NAN%
Tags
  • Gauge Display
  • No Skip Read Text Option
  • Island
  • Lip Sync
  • Western-style Manor
Rating 5.67377 Users
Ecchi na Bunny-san wa Kirai? 2
Ecchi na Bunny-san wa Kirai? 2
NAN%
Tags
  • Bunnygirl Cosplay
  • Co-worker Heroine
  • Waitress Heroine
  • Heroine with Tights
  • Cafe
Rating 5.98491 Users
Sagara-sanchi no Etsuraku Life ♪
Sagara-sanchi no Etsuraku Life ♪
NAN%
Tags
  • Asian-style Manor
  • Half-orphan Heroine
  • Family Life Comedy
  • Widow Heroine
  • Romancing a Family
Rating 6.741,272 Users
Se-n-se-i 2
Se-n-se-i 2
NAN%
Tags
  • Movable Text Box
  • Uncredited Voice Acting
  • Sadist Protagonist
  • No Quick Save/Load
  • School Art Club
Rating 5.66224 Users
Eimmy to Yobanaide
Eimmy to Yobanaide
NAN%
Tags
  • Protagonist's Half-brother as a Hero
  • Debt
  • Protagonist with Big Breasts
  • Airhead Protagonist
  • Disappearance
Rating 5.43186 Users
Tokimeki Check-in!
Tokimeki Check-in!
NAN%
Tags
  • Hotel
  • No Backlog
  • Completely Avoidable Heroine Rape
  • Painter Heroine
  • Cook Heroine
Rating 6.06409 Users
Doushin ~Sanshimai no Etude~
Doushin ~Sanshimai no Etude~
NAN%
Tags
  • Office Lady Protagonist
  • Unavoidable Heroine Rape
  • Multiple Protagonists
  • Heroine with Shorts
  • Protagonist with Voice Acting
Rating 5.62174 Users
Yin-Yang! X Change Alternative
Yin-Yang! X Change Alternative
NAN%
Tags
  • Genderbent Sex
  • Non-blood-related Sister/Sister Incest
  • Sex Change
  • Poor Protagonist
  • Protagonist with Ahoge
Rating 6.51704 Users
Sekai o Seifuku Suru Tame no, 3tsu no Houhou
Sekai o Seifuku Suru Tame no, 3tsu no Houhou
NAN%
Tags
  • Sex Change
  • Genderbent Sex
  • Maou Protagonist
  • Immortal Heroine
  • Western-style Castle
Rating 7.0545 Users
Tsuki
Tsuki
NAN%
Tags
  • Protagonist with Multiple Personalities
  • Half-orphan Protagonist
  • Weak-willed Heroine
  • Long Sexual Scenes
  • Ending Scene Recollection
Rating 5.74355 Users
True Love ~Jun
True Love ~Jun'ai Monogatari~
NAN%
Tags
  • Location Display
  • Painter Heroine
  • Sprite Viewer
  • School Life Comedy
  • Dating Simulation
Rating 6.98971 Users
Ecchi na Bunny-san wa Kirai?
Ecchi na Bunny-san wa Kirai?
NAN%
Tags
  • Usamimi Heroine
  • Heroine with Leotard
  • Bunnygirl Cosplay
  • Waiting Staff Protagonist
  • Co-worker Heroine
Rating 5.88557 Users
Tottemo Pheromone
Tottemo Pheromone
NAN%
Tags
  • Energy Transfer via Sex
  • Support Character with Ahoge
  • Cousin Support Character
  • Host Club Heroine
  • Waiting Staff Protagonist
Rating 5.96261 Users
Ikazuchi no Senshi Raidy 2
Ikazuchi no Senshi Raidy 2
NAN%
Tags
  • Lesbian Domination
  • Rape on Defeat
  • Sexual Slavery (Non-consensual)
  • Dungeon Crawling Game
  • Monster Girl Support Character
Rating 6.42466 Users
Bible Black -The Infection-
Bible Black -The Infection-
NAN%
Tags
  • Sex Cult
  • Protagonist's Girlfriend as a Heroine
  • Bullying
  • Curse
  • Magic
Rating 5.31411 Users
Hitozuma Hime Club
Hitozuma Hime Club
NAN%
Tags
  • Short Sexual Scenes
  • Infidelity
  • Married Heroine
  • Sexual Devices
  • Triple Blowjob
Rating 5.82507 Users
Dragon Knight III
Dragon Knight III
NAN%
Tags
  • Softcore
  • Knight Protagonist
  • Comedic Sex Scenes
  • Pixel Art
  • Fictional Beings
Rating 6.44129 Users
Yin-Yang! X Change EX ~Boku no Sensei ga Konna ni Onna na Wake ga Nai~
Yin-Yang! X Change EX ~Boku no Sensei ga Konna ni Onna na Wake ga Nai~
NAN%
Tags
  • Sex Change
  • Genderbent Sex
  • Gender Bending
  • Teacher Protagonist
  • Group Sex of Several Females
Rating 6.8931 Users
Xchange2
Xchange2
55%
Tags
  • Genderbent Sex
  • Sex Change
  • Student Club President Protagonist
  • Shota Support Character
  • Male Protagonist for a Short Time
Rating 6.17498 Users
Xchange3
Xchange3
45%
Tags
  • Genderbent Sex
  • Sex Change
  • Male Protagonist for a Short Time
  • Unavoidable Protagonist Rape
  • Comedy Rape
Rating 6.13419 Users
Yin-Yang! X Change Alternative
Yin-Yang! X Change Alternative
27%
Tags
  • Genderbent Sex
  • Non-blood-related Sister/Sister Incest
  • Sex Change
  • Poor Protagonist
  • Protagonist with Ahoge
Rating 6.51704 Users
Doushin ~Sanshimai no Etude~
Doushin ~Sanshimai no Etude~
17%
Tags
  • Office Lady Protagonist
  • Unavoidable Heroine Rape
  • Multiple Protagonists
  • Heroine with Shorts
  • Protagonist with Voice Acting
Rating 5.62174 Users
Tokimeki Check-in!
Tokimeki Check-in!
15%
Tags
  • Hotel
  • No Backlog
  • Completely Avoidable Heroine Rape
  • Painter Heroine
  • Cook Heroine
Rating 6.06409 Users
Se-n-se-i 2
Se-n-se-i 2
11%
Tags
  • Movable Text Box
  • Uncredited Voice Acting
  • Sadist Protagonist
  • No Quick Save/Load
  • School Art Club
Rating 5.66224 Users
Eimmy to Yobanaide
Eimmy to Yobanaide
11%
Tags
  • Protagonist's Half-brother as a Hero
  • Debt
  • Protagonist with Big Breasts
  • Airhead Protagonist
  • Disappearance
Rating 5.43186 Users
Ecchi na Bunny-san wa Kirai? 2
Ecchi na Bunny-san wa Kirai? 2
11%
Tags
  • Bunnygirl Cosplay
  • Co-worker Heroine
  • Waitress Heroine
  • Heroine with Tights
  • Cafe
Rating 5.98491 Users
Sagara-sanchi no Etsuraku Life ♪
Sagara-sanchi no Etsuraku Life ♪
10%
Tags
  • Asian-style Manor
  • Half-orphan Heroine
  • Family Life Comedy
  • Widow Heroine
  • Romancing a Family
Rating 6.741,272 Users
Tsuki
Tsuki
10%
Tags
  • Protagonist with Multiple Personalities
  • Half-orphan Protagonist
  • Weak-willed Heroine
  • Long Sexual Scenes
  • Ending Scene Recollection
Rating 5.74355 Users
Ecchi na Bunny-san wa Kirai?
Ecchi na Bunny-san wa Kirai?
10%
Tags
  • Usamimi Heroine
  • Heroine with Leotard
  • Bunnygirl Cosplay
  • Waiting Staff Protagonist
  • Co-worker Heroine
Rating 5.88557 Users
Ikazuchi no Senshi Raidy 2
Ikazuchi no Senshi Raidy 2
10%
Tags
  • Lesbian Domination
  • Rape on Defeat
  • Sexual Slavery (Non-consensual)
  • Dungeon Crawling Game
  • Monster Girl Support Character
Rating 6.42466 Users
Hitozuma Hime Club
Hitozuma Hime Club
10%
Tags
  • Short Sexual Scenes
  • Infidelity
  • Married Heroine
  • Sexual Devices
  • Triple Blowjob
Rating 5.82507 Users
Yin-Yang! X Change EX ~Boku no Sensei ga Konna ni Onna na Wake ga Nai~
Yin-Yang! X Change EX ~Boku no Sensei ga Konna ni Onna na Wake ga Nai~
10%
Tags
  • Sex Change
  • Genderbent Sex
  • Gender Bending
  • Teacher Protagonist
  • Group Sex of Several Females
Rating 6.8931 Users
Chain Ushinawareta Ashiato
Chain Ushinawareta Ashiato
10%
Tags
  • Protagonist's Employee as a Heroine
  • Smoker Protagonist
  • Fake Choices
  • Host Club Heroine
  • Serious Protagonist
Rating 6.61246 Users
X Change Alternative 2 ~Kimi no Hitomi ni Utsuru Kimi~
X Change Alternative 2 ~Kimi no Hitomi ni Utsuru Kimi~
10%
Tags
  • Body Swapping
  • Genderbent Sex
  • Gender Bending
  • School
  • Childhood Promise
Rating 6.9753 Users
Kindan no Ketsuzoku
Kindan no Ketsuzoku
10%
Tags
  • Spontaneous Sex Scenes
  • Non-twin Heroine Sisters
  • Short Sexual Scenes
  • Fake Choices
  • Wake-up Sex
Rating 5.09329 Users
Bible Black -La noche de walpurgis-
Bible Black -La noche de walpurgis-
9%
Tags
  • Sex Cult
  • Spring
  • Occult Club
  • Public Use (Choukyou or Non-Consensual)
  • Multi-Selection Choices
Rating 7.031,661 Users
Shukketsubo ~Senseki no Oetsu~
Shukketsubo ~Senseki no Oetsu~
9%
Tags
  • Dirty Talk
  • Non-consensual Erotic Humiliation
  • Heroine with Eye Covering Hairstyle
  • Weak-willed Heroine
  • Pain Only Rape
Rating 5.81533 Users
Winter
Winter's Empty Mask
9%
Tags
  • Horror
  • Mystery
  • RPG
  • Male Protagonist
Rating 5.8420 Users
HEARTWORK -Symphony of Destruction-
HEARTWORK -Symphony of Destruction-
9%
Tags
  • Pistol Combat
  • Ending List
  • Violence
  • Female Friend
  • High Amount of Bad Endings
Rating 5.97278 Users
Tsukushite Agechau 4 ~Watashi-tachi no Mitsugetsu~
Tsukushite Agechau 4 ~Watashi-tachi no Mitsugetsu~
9%
Tags
  • Part-time Job
  • Cook Support Character
  • Protagonist with Health Issues
  • Waitress Heroine
  • Short Sexual Scenes
Rating 6.11221 Users
Kango Shichau zo 2 ~Joshi Ryou wa Moeteiru ka~
Kango Shichau zo 2 ~Joshi Ryou wa Moeteiru ka~
9%
Tags
  • Italian Heroine
  • Nurse Support Character
  • Nun Heroine
  • Heroine with Armpit Hair
  • Timid Heroine
Rating 5.81234 Users
Ikazuchi no Senshi Raidy
Ikazuchi no Senshi Raidy
9%
Tags
  • Lesbian Domination
  • Monster Girl Support Character
  • Rape on Defeat
  • Dungeon Crawling Game
  • Fictional Beings
Rating 5.78691 Users

Xchange has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
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Tags (55 total)

NameScoreImportanceWeight
Genderbent Sex2.862.276.50
Sex Change2.772.236.18
Extremely (un)Lucky Protagonist2.002.615.22
Airhead Protagonist2.002.595.19
School Nurse Support Character2.002.474.95
Flat Tints Only3.001.614.84
Student Club Member Protagonist2.002.394.78
Student Club President Heroine2.002.334.67
Scientist Heroine2.002.334.65
Black Comedy2.002.284.57
No Skip Read Text Option2.002.274.53
Multi-Selection Choices1.802.514.53
Male Protagonist for a Short Time1.672.634.39
Protagonist's Sister as a Support Character2.002.094.18
Heroine with Beauty Mark2.001.803.61
No Backlog2.001.803.60
Fictional Modern Day Japanese Town1.831.963.58
Modern Tsundere Heroine2.001.763.53
Protagonist's Senpai as a Heroine2.001.693.38
Chikan1.502.193.29
Sex in a Classroom2.001.633.26
Game Over2.001.492.97
Perverted Heroine2.001.402.80
One True End2.001.392.77
High Sexual Content2.571.052.70
Branching Plot2.001.302.60
High School2.001.222.44
High School Student Protagonist2.001.212.42
Bad Ending(s)2.001.202.39
Lesbian Sex2.001.152.30
Protagonist's Childhood Friend as a Heroine2.001.142.28
Protagonist with a Sprite2.001.142.27
Heroine with Glasses2.001.112.23
Sex on a Roof1.002.172.17
Protagonist with Voice Acting1.571.362.14
Tribadism1.002.052.05
Voiced Thoughts1.002.022.02
Multiple Endings3.000.672.01
Student Heroine2.000.991.98
Censored Text1.001.931.93
Missionary Position2.000.941.88
Cunnilingus2.000.931.86
Female Protagonist2.560.711.82
Both Male and Female Love Interests1.001.731.73
High School Student Heroine2.000.851.70
Cowgirl2.000.841.68
Doggy Style2.000.801.61
Butterfly1.001.501.50
Nukige2.000.651.30
Protagonist with a Face2.000.641.28
Standing Sex1.001.061.06
Fantasy0.671.250.84
Male Protagonist1.570.300.48
Perverted Protagonist0.251.660.41
ADV1.860.150.27

Traits (129 total)

NameCharactersImportanceWeight
Sex Change (Male to Female) Subject of23.013.31
School Science Club Member Role22.943.23
Schoolmate Role41.893.05
Vaginal Fingering Engages in (Sexual)51.622.90
Cunnilingus Engages in (Sexual)51.552.78
Step Sister Role22.432.67
Airhead Personality31.922.66
Sex on Roof Engages in (Sexual)22.292.52
School Science Club President Role13.532.44
Sex in School Infirmary Engages in (Sexual)22.232.44
Missionary Engages in (Sexual)31.742.41
Outgoing Personality31.742.41
Tribadism Engages in (Sexual)22.122.33
Straight Hair100.952.27
Relaxed Personality31.642.27
Pervert Personality31.632.26
Pleated Skirt Clothes41.402.25
Sex in Classroom Engages in (Sexual)31.612.23
Lesbian Sex Engages in (Sexual)41.382.22
Funny Personality22.002.19
Genderbent Sex Engages in (Sexual)13.112.15
Shirt Clothes51.162.07
Standing Sex Engages in (Sexual)21.872.05
Belt Clothes41.272.05
Ribbon Tie Clothes41.252.01
Classmate Role41.231.98
Trousers Clothes41.191.92
Widow's Peak Hair12.761.91
Effeminate Personality12.751.91
PE Teacher Role12.751.90
Foreign Exchange Student Role12.741.90
Step Brother Role12.731.89
Doggy Style Engages in (Sexual)21.691.85
Amber Eyes51.031.84
Shorts Clothes21.681.84
Curtained Hair31.301.80
Kouhai Role21.631.79
Sixty-nine Engages in (Sexual)31.261.74
Childhood Friend Role31.261.74
School Nurse Role12.471.71
Modern Tsundere Personality12.431.68
High School Student Role60.851.66
Blue Hair31.191.65
Facesitting Subject of (Sexual)12.351.63
Cunnilingus Subject of (Sexual)31.161.61
Spiky Bangs Hair41.001.61
Distrustful Personality12.291.59
Eccentric Personality12.291.59
Foreigner Role12.281.58
Scientist Role12.281.58
Earrings Clothes21.421.56
Tank Top Clothes21.421.56
Hair Tie Clothes21.411.54
Hosome Eyes21.371.50
Quickie Fix Subject of (Sexual)31.081.50
Teal Hair12.161.50
Vaginal Fingering Subject of (Sexual)31.081.50
Accident Subject of12.141.48
Wrinkles Body12.131.48
School Uniform Clothes60.751.46
Transfer Student Role12.021.40
Butterfly Engages in (Sexual)12.021.40
Facesitting Engages in (Sexual)11.971.37
Teen Body80.621.36
Clumsy Personality11.931.34
One Piece Swimsuit Clothes11.921.33
Slim Body90.581.33
Younger Brother Role11.901.32
Quickie Fix Engages in (Sexual)11.881.31
Boyfriend Role11.871.29
Boobjob Subject of (Sexual)11.861.29
Homosexual Role11.831.27
Strict Personality11.831.27
Bob Cut Hair11.821.26
Short Hair70.611.26
Brown Eyes30.901.25
Lab Coat Clothes11.801.25
Missionary Subject of (Sexual)21.121.23
Ponytail Hair21.101.21
Mischievous Personality11.731.20
Teal Eyes11.731.20
Vaginal/Anal Sexual Toys Subject of (Sexual)11.721.20
Sport Bloomers Clothes11.721.19
Cowgirl Engages in (Sexual)11.721.19
Reserved Personality11.721.19
Carefree Personality11.681.16
Violet Eyes21.041.15
Popular Role11.631.13
Shy Personality11.621.12
Senpai Role11.611.12
Mole Body11.591.10
Bondage Sex Subject of (Sexual)11.571.09
Older Sister Role11.561.08
Teacher Role11.551.08
Girlfriend Role11.541.07
Blowjob Subject of (Sexual)11.521.06
Blowjob Engages in (Sexual)30.761.06
Group Sex Engages in (Sexual)11.501.04
Doggy Style Subject of (Sexual)20.931.02
Smart Personality11.461.01
Shoulder-length Hair20.921.01
Teasing Engages in11.451.00
Younger Sister Role11.441.00
Blond Hair20.890.97
Blunt Bangs Hair11.400.97
Masturbation Engages in (Sexual)11.390.96
Nipple Sucking Subject of (Sexual)11.380.96
Wavy Hair11.360.94
Virgin Sex Engages in (Sexual)20.850.93
Adult Body11.350.93
Pale Body110.370.92
Red Hair11.320.92
Waist Length+ Hair20.810.89
Black Hair20.810.88
Friendly Personality11.220.85
Young-adult Body20.760.84
Violet Hair11.190.83
Standing Sex Subject of (Sexual)11.180.82
Tareme Eyes11.100.76
Brown Hair20.680.75
Glasses Clothes11.080.75
Boobjob Engages in (Sexual)11.070.74
Miniskirt Clothes11.060.74
Sitting Sex Subject of (Sexual)11.060.74
Kind Personality11.030.71
Sidehair Hair10.980.68
Cowgirl Subject of (Sexual)10.950.66
Blue Eyes10.800.56
100.000.00