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Summary

The story is about a protagonist, Yukawa Haruto, whose bratty sister, Momoka, throws away his borrowed erotic books and DVDs. As an apology to the owner of those items, he starts secretly filming his sister changing clothes and taking bath. As he does this, he begins to develop forbidden feelings for her. Meanwhile, Momoka is aware of the filming but pretends not to notice, and she finds herself enjoying her brother's gaze. Their relationship escalates, and one day, when Momoka feels the time has come, she opens her eyes only to find her brother's friend about to assault her instead of her brother. Haruto's twisted feelings lead to a tragic turn of events.

Bitch Nee-chan ga Seijun na Hazu ga Nai!
Bitch Nee-chan ga Seijun na Hazu ga Nai!
NAN%
Tags
  • Unavoidable Heroine Rape
  • Haraguro Heroine
  • Threesome Ending
  • Sexual Slavery (Consensual)
  • Sex with Others
Rating 7.0192 Users
Angel Game
Angel Game
NAN%
Tags
  • Overlapping Love Interests
  • Choices from Other Perspectives
  • Protagonist Selection
  • Hero in Relationship with Other(s)
  • Salaryman Hero
Rating 6.4456 Users
Shin Arijigoku
Shin Arijigoku
NAN%
Tags
  • Tennis
  • Androphobic Heroine
  • Sister/Sister Incest
  • Rapist Protagonist
  • Non-twin Heroine Sisters
Rating 6.6124 Users
Hakudaku Shimai ~Namaiki na Ano Ko no Kao ni Bukkakero!~
Hakudaku Shimai ~Namaiki na Ano Ko no Kao ni Bukkakero!~
NAN%
Tags
  • Non-twin Heroine Sisters
  • Public Use (Choukyou or Non-Consensual)
  • Unavoidable Heroine Rape
  • School Nurse Heroine
  • Background Moans
Rating 6.1521 Users
Kotoba no Kieta Hi ~Kokoro made Hadaka ni Suru Jun
Kotoba no Kieta Hi ~Kokoro made Hadaka ni Suru Jun'ai Choukyou~
NAN%
Tags
  • ESP
  • Lots of Event CGs
  • Japanese Mythology
  • Exhibitionism
  • Spontaneous Sex Scenes
Rating 6.3833 Users
Oppai Heart ~Kanojo wa Kedamono Hatsujouki!?~
Oppai Heart ~Kanojo wa Kedamono Hatsujouki!?~
NAN%
Tags
  • Student Council Member Heroine
  • Sex Under the Necessity
  • Breast Expansion
  • Tsukkomi Protagonist
  • Cheerleader Heroine
Rating 7.1183 Users
Aneimo Neo ~Second Sisters~
Aneimo Neo ~Second Sisters~
NAN%
Tags
  • Protagonist's Aunt as a Heroine
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Romancing a Family
  • Oneesan-type Heroine
Rating 7.1137 Users
Gakuen Caste ~Youmuin Gesuyama no Gyakuten Shihai Seikatsu~
Gakuen Caste ~Youmuin Gesuyama no Gyakuten Shihai Seikatsu~
NAN%
Tags
  • Janitor Protagonist
  • Glory Hole Sex
  • Principal Heroine
  • High-Tech Sex Engine
  • Sexual Slavery
Rating 6.4028 Users
Pure x Lover -Ane to Osananajimi to H na Kankei-
Pure x Lover -Ane to Osananajimi to H na Kankei-
NAN%
Tags
  • Quadruple+ Blowjob
  • Urethral Intercourse
  • Reverse Piledriver
  • Sadist Heroine
  • Blood-related Mother/Daughter Incest
Rating 6.6229 Users
Sex Sensou ~Ai Aru Ecchi wa Kinshi Desu!~
Sex Sensou ~Ai Aru Ecchi wa Kinshi Desu!~
NAN%
Tags
  • Protagonist's Rival as a Heroine
  • Heroine with Tan Lines
  • Colored Name-tags
  • High Sexual Content
  • Pregnancy
Rating 5.8420 Users
Tadakano ~Tadashii Kanojo no Tsukurikata~
Tadakano ~Tadashii Kanojo no Tsukurikata~
NAN%
Tags
  • Completely Avoidable Netorare
  • Swinging
  • Few Choices
  • Half-Japanese Heroine
  • Early Sexual Content
Rating 6.6622 Users
Itazura ~Boku Dake no Zettai Ryouiki~
Itazura ~Boku Dake no Zettai Ryouiki~
NAN%
Tags
  • Chikan Heroine
  • Hotel
  • Trains
  • Voiced Thoughts
  • Pregnancy Good Ending
Rating 6.1720 Users
Zettai Seifuku ☆ Gakuen Kessha Panyanyanda!!
Zettai Seifuku ☆ Gakuen Kessha Panyanyanda!!
NAN%
Tags
  • Single Legjob
  • Lazy Heroine
  • Consensual Sex Involving Slime Monsters
  • Principal Heroine
  • Protagonist's Rival as a Heroine
Rating 6.6737 Users
Tegome ni Sareru Kyuunin no Otome
Tegome ni Sareru Kyuunin no Otome
NAN%
Tags
  • Nude Filter
  • More Than Seven Heroines
  • Defloration During Common Route
  • Medical Doctor Heroine
  • Twin Handjob
Rating 7.2659 Users
Ryuudouji Shimon no Inbou
Ryuudouji Shimon no Inbou
NAN%
Tags
  • Crippled Heroine
  • Sex Wearing Panties On Face
  • Body Smell Fetish
  • Sexual Slavery (Choukyou Variation)
  • Twincest
Rating 6.6744 Users
Mahou Shoujo no Ani ~Heta na Uso to Furyou Shounen~
Mahou Shoujo no Ani ~Heta na Uso to Furyou Shounen~
NAN%
Tags
  • Heroine Rape by Others
  • Bullying
  • Avoidable Netorare (obsolete)
  • Avoidable Rape
  • Spreader Bar
Rating 5.8437 Users
Selfre -Self Friend-
Selfre -Self Friend-
NAN%
Tags
  • Charming Protagonist
  • Photographer Protagonist
  • Photographer Heroine
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Student Club Member Protagonist
Rating 7.4247 Users
Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~
Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~
NAN%
Tags
  • Heroine Sisters
  • Pragmatic Protagonist
  • School Nurse Heroine
  • Ejaculation Forewarner
  • Blood-related Sister/Sister Incest
Rating 6.2935 Users
Omae no Danna Datte Ore no Tsuma o Ubattan Dakara, Ii Darou? ~Fukushuu no Netori~
Omae no Danna Datte Ore no Tsuma o Ubattan Dakara, Ii Darou? ~Fukushuu no Netori~
NAN%
Tags
  • Consensual Phone Sex
  • Swinging
  • Molestation on Public Transport
  • Clothed Male Naked Female
  • Remote-controlled Vibrator
Rating 6.3321 Users
Saimin Paranoia
Saimin Paranoia
NAN%
Tags
  • Chikan Protagonist
  • Molestation on Public Transport
  • Gyaru Heroine
  • Erotic Mind Control
  • Sex in a Vehicle
Rating 6.4125 Users
Boku no xx wa Ryousei-tachi no Tokken Desu!
Boku no xx wa Ryousei-tachi no Tokken Desu!
NAN%
Tags
  • Dormitory Manager Protagonist
  • School Sports Club Member Heroine
  • Sprite Filter
  • Protagonist with Phimosis
  • Defloration During Common Route
Rating 6.8241 Users
Innocent Blue
Innocent Blue
NAN%
Tags
  • Nurse Support Character
  • Infertile Heroine
  • Completely Avoidable Netorare
  • Protagonist's Blood-related Sister as a Heroine
  • Hospital
Rating 6.7122 Users
Tensei Kunitori Sex Gassen!!
Tensei Kunitori Sex Gassen!!
NAN%
Tags
  • Fortune-teller Heroine
  • Religious Heroine
  • Albino Heroine
  • Onahole
  • Oppai Loli Heroine
Rating 7.2942 Users
Shin NOZOKI-ma 2 ~Jogakuryou no Himitsu~
Shin NOZOKI-ma 2 ~Jogakuryou no Himitsu~
NAN%
Tags
  • Paraphilic Infantilism
  • School Nurse Heroine
  • Narrating Others' Thoughts
  • Heroine with Garter Belt
  • Masochist Heroine
Rating 6.3721 Users
Boku no Itoshii Imouto ga Netorarechatta Wake
Boku no Itoshii Imouto ga Netorarechatta Wake
26%
Tags
  • Netorare
  • Clothed Male Naked Female
  • Protagonist's Blood-related Sister as a Heroine
  • Only Bad Endings
  • Read Text Marking
Rating 6.3834 Users
Midare Setsugetsuka ~Hakanaku Chiru Sasameyuki~
Midare Setsugetsuka ~Hakanaku Chiru Sasameyuki~
23%
Tags
  • Shinobi
  • Kunoichi Heroine
  • Ninja Protagonist
  • Suspension Bondage
  • Sexual Devices
Rating 6.5122 Users
Tegome ni Sareru Kyuunin no Otome
Tegome ni Sareru Kyuunin no Otome
22%
Tags
  • Nude Filter
  • More Than Seven Heroines
  • Defloration During Common Route
  • Medical Doctor Heroine
  • Twin Handjob
Rating 7.2659 Users
Zettai Seifuku ☆ Gakuen Kessha Panyanyanda!!
Zettai Seifuku ☆ Gakuen Kessha Panyanyanda!!
22%
Tags
  • Single Legjob
  • Lazy Heroine
  • Consensual Sex Involving Slime Monsters
  • Principal Heroine
  • Protagonist's Rival as a Heroine
Rating 6.6737 Users
Itazura ~Boku Dake no Zettai Ryouiki~
Itazura ~Boku Dake no Zettai Ryouiki~
22%
Tags
  • Chikan Heroine
  • Hotel
  • Trains
  • Voiced Thoughts
  • Pregnancy Good Ending
Rating 6.1720 Users
Sex Sensou ~Ai Aru Ecchi wa Kinshi Desu!~
Sex Sensou ~Ai Aru Ecchi wa Kinshi Desu!~
21%
Tags
  • Protagonist's Rival as a Heroine
  • Heroine with Tan Lines
  • Colored Name-tags
  • High Sexual Content
  • Pregnancy
Rating 5.8420 Users
Tadakano ~Tadashii Kanojo no Tsukurikata~
Tadakano ~Tadashii Kanojo no Tsukurikata~
21%
Tags
  • Completely Avoidable Netorare
  • Swinging
  • Few Choices
  • Half-Japanese Heroine
  • Early Sexual Content
Rating 6.6622 Users
Gakuen Caste ~Youmuin Gesuyama no Gyakuten Shihai Seikatsu~
Gakuen Caste ~Youmuin Gesuyama no Gyakuten Shihai Seikatsu~
20%
Tags
  • Janitor Protagonist
  • Glory Hole Sex
  • Principal Heroine
  • High-Tech Sex Engine
  • Sexual Slavery
Rating 6.4028 Users
Pure x Lover -Ane to Osananajimi to H na Kankei-
Pure x Lover -Ane to Osananajimi to H na Kankei-
19%
Tags
  • Quadruple+ Blowjob
  • Urethral Intercourse
  • Reverse Piledriver
  • Sadist Heroine
  • Blood-related Mother/Daughter Incest
Rating 6.6229 Users
Mahou Shoujo no Ani ~Heta na Uso to Furyou Shounen~
Mahou Shoujo no Ani ~Heta na Uso to Furyou Shounen~
19%
Tags
  • Heroine Rape by Others
  • Bullying
  • Avoidable Netorare (obsolete)
  • Avoidable Rape
  • Spreader Bar
Rating 5.8437 Users
Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~
Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~
19%
Tags
  • Heroine Sisters
  • Pragmatic Protagonist
  • School Nurse Heroine
  • Ejaculation Forewarner
  • Blood-related Sister/Sister Incest
Rating 6.2935 Users
Saimin Paranoia
Saimin Paranoia
19%
Tags
  • Chikan Protagonist
  • Molestation on Public Transport
  • Gyaru Heroine
  • Erotic Mind Control
  • Sex in a Vehicle
Rating 6.4125 Users
Innocent Blue
Innocent Blue
18%
Tags
  • Nurse Support Character
  • Infertile Heroine
  • Completely Avoidable Netorare
  • Protagonist's Blood-related Sister as a Heroine
  • Hospital
Rating 6.7122 Users
Shin NOZOKI-ma 2 ~Jogakuryou no Himitsu~
Shin NOZOKI-ma 2 ~Jogakuryou no Himitsu~
18%
Tags
  • Paraphilic Infantilism
  • School Nurse Heroine
  • Narrating Others' Thoughts
  • Heroine with Garter Belt
  • Masochist Heroine
Rating 6.3721 Users
Kisei Fuka ~Ore wa Sonzai Shinai no de, Nani o Yatte mo Yurusareru~
Kisei Fuka ~Ore wa Sonzai Shinai no de, Nani o Yatte mo Yurusareru~
18%
Tags
  • Invisibility
  • Rapist Protagonist
  • Villainous Protagonist
  • High Amounts of Rape
  • Siscon Protagonist
Rating 6.3133 Users
Tsukiyo no Mura
Tsukiyo no Mura
18%
Tags
  • Countryside
  • Journalist Protagonist
  • Netorare
  • Heroine with Kimono
  • Defloration by Others
Rating 6.2964 Users
Tsurupeta x NTR ~Osananajimi Kanojo no 3 Nenkan no Choukyou Kiroku~
Tsurupeta x NTR ~Osananajimi Kanojo no 3 Nenkan no Choukyou Kiroku~
18%
Tags
  • Netorare Type B
  • Mirror Sex
  • Production of Pornography (Amateur)
  • Meaningless Choices
  • Straight Lolicon
Rating 6.1228 Users
Muchimuchi Dakara Mukumuku Shita ~Osananajimi to no Sugoshikata~
Muchimuchi Dakara Mukumuku Shita ~Osananajimi to no Sugoshikata~
18%
Tags
  • Share House
  • Only Younger Heroines
  • Wet and Messy
  • Sex with Sleepers
  • Masturbation with Object
Rating 7.3067 Users
Saiminjutsu Re
Saiminjutsu Re
18%
Tags
  • Pregnancy Bad Ending
  • P.E. Teacher Heroine
  • Food Gokkun
  • Avoidable Netorare (obsolete)
  • In-law Incest
Rating 7.3976 Users
Imouto Dakara Dekiru Koto, Imouto Janai to Dame na Koto.
Imouto Dakara Dekiru Koto, Imouto Janai to Dame na Koto.
18%
Tags
  • Siscon Protagonist
  • Protagonist's Younger Sister as a Heroine
  • Protagonist's Full Sister as a Heroine
  • Love Triangle
  • Nude Filter
Rating 6.5634 Users
Wagamama Milk DE Shite Ageru ~Ecchi na Oneesan-tachi to no Dopyudopyu Home Share Seikatsu~
Wagamama Milk DE Shite Ageru ~Ecchi na Oneesan-tachi to no Dopyudopyu Home Share Seikatsu~
17%
Tags
  • Group (4+) Boobjob
  • Foreskin Play
  • Oneesan-type Heroine
  • Blood-related Cousin Incest
  • Nursing Handjob
Rating 7.2349 Users
Bitch Sisters ga Seijun na Hazu ga Nai!!
Bitch Sisters ga Seijun na Hazu ga Nai!!
17%
Tags
  • Unavoidable Harem Ending
  • Shimaidon Ending
  • Unlockable Harem Ending
  • Promiscuous Heroine
  • Nude Filter
Rating 7.3386 Users
Shoujo Activity
Shoujo Activity
17%
Tags
  • Half-Japanese Heroine
  • Threesome Ending
  • Protagonist's Childhood Friend as a Heroine
  • Early Sexual Content
  • Defloration During Common Route
Rating 6.7639 Users
Ane o Tasukeru Tame Nokosareta Shimai o Kegasu Haitoku no Hibi
Ane o Tasukeru Tame Nokosareta Shimai o Kegasu Haitoku no Hibi
17%
Tags
  • Rape by Proxy
  • Kidnapping
  • Confinement
  • Sex in a School Infirmary
  • Vaginal Object Insertion
Rating 6.7333 Users

Erohon o Sutete kara Ani no Yousu ga Okashii has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
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Tags (35 total)

Traits (49 total)

NameCharactersImportanceWeight
Snowballing Engages in (Sexual)22.863.14
Consumption of Porn Engages in (Sexual)22.462.70
Netori (their SO is stolen) Subject of12.261.56
Grey Hair21.381.52
Pissing Subject of (Sexual)12.181.51
Netori (steals the SO) Engages in12.171.51
Molesting Subject of12.151.49
Sundress Clothes12.141.49
Voyeurism Engages in (Sexual)12.141.48
Blackmail Subject of12.121.47
Netorare (they are the stolen SO) Subject of12.111.47
Honor Student Role12.091.45
Docile Personality12.041.42
Cunnilingus Subject of (Sexual)21.161.28
Pink Rotor Subject of (Sexual)11.841.27
Hidden Eyes11.801.25
Hair Ribbon Clothes11.801.25
Hair Flower Clothes11.771.23
Older Brother Role11.731.20
High School Student Role30.851.18
Cyan Eyes11.661.15
Rape Subject of (Sexual)11.571.09
Pendant Necklace Clothes11.521.05
Incest Engages in (Sexual)11.471.02
Younger Sister Role11.441.00
T-shirt Clothes11.310.91
Sex in Public Places Engages in (Sexual)11.260.87
Classmate Role11.230.85
Blowjob Engages in (Sexual)20.760.84
Friend Role11.200.83
School Uniform Clothes20.750.83
Anal Sex Subject of (Sexual)11.190.82
Shirt Clothes11.160.80
Big Breasts Body11.130.78
Twin Tails Hair11.130.78
Vaginal Fingering Subject of (Sexual)11.080.75
Boobjob Engages in (Sexual)11.070.74
Miniskirt Clothes11.060.74
Violet Eyes11.050.72
Kind Personality11.030.71
Teen Body20.620.68
Cowgirl Subject of (Sexual)10.950.66
Doggy Style Subject of (Sexual)10.920.64
Virgin Sex Engages in (Sexual)10.850.59
Blue Eyes10.800.56
Long Hair10.750.52
Brown Hair10.680.47
Short Hair10.610.42
Pale Body20.370.40