Loading
Please wait

Summary

"I want to rape my younger sister" Older brother Tomoyuki and younger sister Rinne are ordinary siblings. They live like normal, get along and fight like normal. But she has become the object of his desire and each night he sneaks into her room. Again and again he masturbates to her sleeping form as she lies there defenseless. This summer they're forced to spend more time together. She's grown more delicate, her arms are softer, her hair is growing longer. His sister, like a sweet flower that's begun to open up and bloom, is becoming a young woman. The summer sun shines brilliantly now and sweat trickles down her neck from the heat. When he closes his eyes he sees her smile up at him. He cannot suppress his lust any longer. <Translated from the official site>

Stellula Eques Codex ~Tasogare no Himekishi~
Stellula Eques Codex ~Tasogare no Himekishi~
NAN%
Tags
  • Mahou Shoujo Heroine
  • Immortal Heroine
  • Sword Wielding Heroine
  • Heroine with Small Breasts (Non-Loli)
  • Sex Under the Necessity
Rating 6.8723 Users
Daisuki na Sensei ni H na Onedari Shichau Omase na Boku no / Watashi no Puni Puni
Daisuki na Sensei ni H na Onedari Shichau Omase na Boku no / Watashi no Puni Puni
NAN%
Tags
  • Pedophile Protagonist
  • Trap Heroine
  • Domicile
  • Quiz Game
  • Sickly Heroine
Rating 6.2222 Users
Sengoku Tenshi Djibril
Sengoku Tenshi Djibril
NAN%
Tags
  • Sengoku Period
  • Avoidable Rape
  • Public Use (Choukyou or Non-Consensual)
  • Netorare
  • Avoidable Netorare (obsolete)
Rating 7.1041 Users
Mashou no Nie 2
Mashou no Nie 2
NAN%
Tags
  • Princess Heroine
  • Fantasy
  • Rape
  • Double Penetration (Group Sex)
  • Vaginal + Anal Tentacle Penetration
Rating 6.4023 Users
Cosscos! ~Anatagonomi no Cosplay H Shite Ageru~
Cosscos! ~Anatagonomi no Cosplay H Shite Ageru~
NAN%
Tags
  • Sex Involving Smegma
  • Shapeshifting
  • Ejaculation Forewarner
  • Pantyjob
  • Heroine with Intake Hairstyle
Rating 6.8827 Users
Danchi Wife ~Hitozuma Nude Model no Kenshin~
Danchi Wife ~Hitozuma Nude Model no Kenshin~
NAN%
Tags
  • Painter Protagonist
  • Heroine in Relationship with Other(s)
  • Widow Heroine
  • Harem Ending
  • Threesome Ending
Rating 7.0129 Users
Hataraku Oku-san wa Suki Desu ka? ~Part no Oba-chan ga Onna ni Naru made~
Hataraku Oku-san wa Suki Desu ka? ~Part no Oba-chan ga Onna ni Naru made~
NAN%
Tags
  • Heroine with Children
  • Married Heroine
  • Netori
  • Sex on a Beach
  • Love Hotel
Rating 6.8427 Users
Taiyou no Promia Flowering Days
Taiyou no Promia Flowering Days
NAN%
Tags
  • Beach
  • Resort
  • Protagonist's Girlfriend as a Heroine
  • Librarian Heroine
  • Leader Heroine
Rating 7.0621 Users
Ookami Shoujo Reona -Yasei Houkai Hakuchi Kyouiku-
Ookami Shoujo Reona -Yasei Houkai Hakuchi Kyouiku-
NAN%
Tags
  • Rapist Protagonist
  • Internal Exhibition of Sex
  • Central Heroine
  • Sexual Devices
  • Object Insertion
Rating 6.6620 Users
Jukubo Gui ~Moto Guradoru no Okaa-san~
Jukubo Gui ~Moto Guradoru no Okaa-san~
NAN%
Tags
  • Blackmail
  • Sexual Devices
  • Threesome Ending
  • Naked Heroine with Apron
  • Netori
Rating 7.3225 Users
Love Fetish ~Ashi Fetish Ashikoki Hen~
Love Fetish ~Ashi Fetish Ashikoki Hen~
NAN%
Tags
  • Feet Licking
  • Flat Tints Only
  • Footjob
  • Legwear Footjob
  • Modern Day
Rating 7.1224 Users
In
In'yoku Celeb Tsuma 2 ~Chijoku Seisai~
NAN%
Tags
  • Sexual Slavery
  • Netori
  • Body Piercing
  • Married Heroine
  • Modern Day Japan
Rating 6.8521 Users
Love Fetish ~Tekoki Hen~
Love Fetish ~Tekoki Hen~
NAN%
Tags
  • Flat Tints Only
  • High Sexual Content
  • Modern Day
  • Perverted Heroine
  • Tsundere Heroine
Rating 6.7723 Users
Demiparadoxia ∞ Hookerstic - Hokujou Hen
Demiparadoxia ∞ Hookerstic - Hokujou Hen
NAN%
Tags
  • Prostitute Heroine
  • Heroine with Anal Hair
  • Heroine with Armpit Hair
  • Pubic Hair Option
  • Hotel
Rating 6.4523 Users
Lilith-Izm06 ~Digi Anime with Lily & Lilia Gaiden~
Lilith-Izm06 ~Digi Anime with Lily & Lilia Gaiden~
NAN%
Tags
  • Heroine with Bodystocking
  • Heroine with Slave Tattoo (BDSM)
  • Gaping
  • Anthology
  • Internal Exhibition of Sex
Rating 6.2543 Users
Momojiri Taiiku Onna Kyoushi
Momojiri Taiiku Onna Kyoushi
NAN%
Tags
  • Heroine with Tights
  • P.E. Teacher Heroine
  • Braless Heroine
  • Unavoidable Heroine Rape by the Protagonist
  • Lots of Event CGs
Rating 6.2020 Users
Ryoujoku Gakuenchou / Dorei Club ~Dokushin Choukyouroku~
Ryoujoku Gakuenchou / Dorei Club ~Dokushin Choukyouroku~
NAN%
Tags
  • Human Cattle
  • Sexual Slavery
  • Heroine with Armpit Hair
  • Heroine with Latex
  • Mouth Gag
Rating 7.0536 Users
Sweets!! -Oshioki Sweetie Fandisc-
Sweets!! -Oshioki Sweetie Fandisc-
NAN%
Tags
  • Protagonist with Voice Acting
  • Big Breast Sizes Heroine
  • Excessive Semen
  • Legwear Footjob
  • Maid Heroine
Rating 6.8724 Users
Bakunyuu Hoken Onna Kyoushi
Bakunyuu Hoken Onna Kyoushi
NAN%
Tags
  • School Nurse Heroine
  • Clothed Male Naked Female
  • Bisexual Heroine
  • Teacher Heroine
  • Promiscuous Heroine
Rating 6.5933 Users
Lilith-Izm05 ~Tairyou Shasei Hen~
Lilith-Izm05 ~Tairyou Shasei Hen~
NAN%
Tags
  • P.E. Teacher Heroine
  • Anthology
  • Half-Japanese Heroine
  • Unavoidable Rape
  • Mindbreak
Rating 6.2825 Users
Houkago ☆ Eroge Bu! ~Eroge Seisaku no Tame Onna no Ko to Ecchi Shimakuri na Mainichi~
Houkago ☆ Eroge Bu! ~Eroge Seisaku no Tame Onna no Ko to Ecchi Shimakuri na Mainichi~
NAN%
Tags
  • Student Club President Protagonist
  • Production of Pornography (Drawn)
  • Student Club Member Heroine
  • Censored Text
  • Design Story
Rating 7.2858 Users
Soul Foundation+
Soul Foundation+
NAN%
Tags
  • Gundam
  • Flat Tints Only
  • Blowjob Duck Face
  • Heroine with Huge Breasts
  • Fan-fiction
Rating 6.9123 Users
Ai Shimai ~Futari no Kajitsu~
Ai Shimai ~Futari no Kajitsu~
NAN%
Tags
  • Blood-related Sister/Sister Incest
  • Rape with Blackmail
  • Non-twin Heroine Sisters
  • Rapist Protagonist
  • Sexual Slavery
Rating 6.4523 Users
Kodomo no Himitsu
Kodomo no Himitsu
NAN%
Tags
  • Elementary School
  • Elementary School Student Heroine
  • Student-Teacher Romance
  • Sex Involving Children
  • Shota Support Character
Rating 6.3120 Users
Demiparadoxia ∞ Hookerstic - Nanka Hen
Demiparadoxia ∞ Hookerstic - Nanka Hen
46%
Tags
  • Prostitute Heroine
  • Pubic Hair Option
  • Hotel
  • Customization
  • Sex Involving Prostitution
Rating 6.1828 Users
Love Fetish ~Paizuri Hen~
Love Fetish ~Paizuri Hen~
44%
Tags
  • Flat Tints Only
  • Reverse Trap Heroine
  • Naizuri
  • Small Breast Sizes Heroine (Non-Loli)
  • Single Boobjob
Rating 6.8020 Users
Demiparadoxia ∞ Hookerstic - Hokujou Hen
Demiparadoxia ∞ Hookerstic - Hokujou Hen
40%
Tags
  • Prostitute Heroine
  • Heroine with Anal Hair
  • Heroine with Armpit Hair
  • Pubic Hair Option
  • Hotel
Rating 6.4523 Users
Love Fetish ~Tekoki Hen~
Love Fetish ~Tekoki Hen~
40%
Tags
  • Flat Tints Only
  • High Sexual Content
  • Modern Day
  • Perverted Heroine
  • Tsundere Heroine
Rating 6.7723 Users
In
In'yoku Celeb Tsuma 2 ~Chijoku Seisai~
40%
Tags
  • Sexual Slavery
  • Netori
  • Body Piercing
  • Married Heroine
  • Modern Day Japan
Rating 6.8521 Users
Jukubo Gui ~Moto Guradoru no Okaa-san~
Jukubo Gui ~Moto Guradoru no Okaa-san~
39%
Tags
  • Blackmail
  • Sexual Devices
  • Threesome Ending
  • Naked Heroine with Apron
  • Netori
Rating 7.3225 Users
Love Fetish ~Ashi Fetish Ashikoki Hen~
Love Fetish ~Ashi Fetish Ashikoki Hen~
38%
Tags
  • Feet Licking
  • Flat Tints Only
  • Footjob
  • Legwear Footjob
  • Modern Day
Rating 7.1224 Users
Taiyou no Promia Flowering Days
Taiyou no Promia Flowering Days
36%
Tags
  • Beach
  • Resort
  • Protagonist's Girlfriend as a Heroine
  • Librarian Heroine
  • Leader Heroine
Rating 7.0621 Users
Ookami Shoujo Reona -Yasei Houkai Hakuchi Kyouiku-
Ookami Shoujo Reona -Yasei Houkai Hakuchi Kyouiku-
35%
Tags
  • Rapist Protagonist
  • Internal Exhibition of Sex
  • Central Heroine
  • Sexual Devices
  • Object Insertion
Rating 6.6620 Users
Momojiri Taiiku Onna Kyoushi
Momojiri Taiiku Onna Kyoushi
35%
Tags
  • Heroine with Tights
  • P.E. Teacher Heroine
  • Braless Heroine
  • Unavoidable Heroine Rape by the Protagonist
  • Lots of Event CGs
Rating 6.2020 Users
Sweets!! -Oshioki Sweetie Fandisc-
Sweets!! -Oshioki Sweetie Fandisc-
35%
Tags
  • Protagonist with Voice Acting
  • Big Breast Sizes Heroine
  • Excessive Semen
  • Legwear Footjob
  • Maid Heroine
Rating 6.8724 Users
Lilith-Izm05 ~Tairyou Shasei Hen~
Lilith-Izm05 ~Tairyou Shasei Hen~
35%
Tags
  • P.E. Teacher Heroine
  • Anthology
  • Half-Japanese Heroine
  • Unavoidable Rape
  • Mindbreak
Rating 6.2825 Users
Soul Foundation+
Soul Foundation+
34%
Tags
  • Gundam
  • Flat Tints Only
  • Blowjob Duck Face
  • Heroine with Huge Breasts
  • Fan-fiction
Rating 6.9123 Users
Kodomo no Himitsu
Kodomo no Himitsu
34%
Tags
  • Elementary School
  • Elementary School Student Heroine
  • Student-Teacher Romance
  • Sex Involving Children
  • Shota Support Character
Rating 6.3120 Users
Douryou no Oku-san ~Netori Tsuma, Netorare Tsuma~
Douryou no Oku-san ~Netori Tsuma, Netorare Tsuma~
33%
Tags
  • Netori
  • Clothed Male Naked Female
  • Wake-up Sex
  • Love Hotel
  • Sex in a Vehicle
Rating 7.0626 Users
Lilith-Izm07 ~Ore no Pet Hen~
Lilith-Izm07 ~Ore no Pet Hen~
32%
Tags
  • Yuki-onna Heroine
  • All the Way Through
  • BDSM
  • Anthology
  • Mahou Shoujo Heroine
Rating 6.3324 Users
Hatsujou Exorcist! ~Harau to Hatsujou Suru Ojou-sama ni Tsukaetemasu.~
Hatsujou Exorcist! ~Harau to Hatsujou Suru Ojou-sama ni Tsukaetemasu.~
32%
Tags
  • Yuki-onna Heroine
  • Butler Protagonist
  • Dragon Heroine
  • Exorcism
  • Sex Under the Necessity
Rating 6.6432 Users
D-EVE in you
D-EVE in you
31%
Tags
  • Japanese Idols
  • Idol Heroine
  • Singer Heroine
  • Heroine with Intake Hairstyle
  • Exhibitionism
Rating 7.0925 Users
Lilith-Izm08 ~Nobushito Black Izm~
Lilith-Izm08 ~Nobushito Black Izm~
31%
Tags
  • Unavoidable Heroine Rape
  • Kunoichi Heroine
  • Hetare Protagonist
  • Heroine with Tattoo
  • Small Breast Sizes Heroine (Non-Loli)
Rating 6.9636 Users
Rin x Sen ~Hakudaku Onna Kyoushi to Yaroudomo~
Rin x Sen ~Hakudaku Onna Kyoushi to Yaroudomo~
30%
Tags
  • Clothed Male Naked Female
  • All-boys School
  • Yakuza
  • High Amounts of Rape
  • Teacher Heroine
Rating 7.5229 Users
Chikan Ou ~In
Chikan Ou ~In'yoku no Kaihousha~
30%
Tags
  • Chikan Protagonist
  • Chikan
  • Glory Hole Sex
  • Molestation on Public Transport
  • Discreet Sex
Rating 6.0021 Users
Nantai Prima Onna Kyoushi
Nantai Prima Onna Kyoushi
30%
Tags
  • Bisexual Heroine
  • Autocunnilingus
  • Big Breast Sizes Heroine
  • Sexual Devices
  • Sex at School
Rating 6.5822 Users
GREATER HEAL
GREATER HEAL
29%
Tags
  • Gyaru Heroine
  • Skin Color Selection
  • Flat Tints Only
  • Hotel
  • Twin Handjob
Rating 6.3723 Users
Nozoki Seikatsu ~Bijin Oyako no Ana to Ana!~
Nozoki Seikatsu ~Bijin Oyako no Ana to Ana!~
29%
Tags
  • Voyeurism
  • Blood-related Aunt/Nephew Incest
  • Fictional Modern Day Japanese Countryside
  • Protagonist's Aunt as a Heroine
  • Masturbation with Object
Rating 5.8421 Users

Imouto Ninshin has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
A novel needs atleast 20 owners before it's similarity is calculated.

Tags (35 total)

NameScoreImportanceWeight
Inbreeding2.751.985.46
Only Blood-related Heroines2.002.084.17
Only Protagonist's Sisters as Heroine(s)2.001.993.98
Only Younger Heroines2.001.943.88
Impregnation2.751.383.78
Brother/Sister Incest1.802.043.68
Only Loli Heroines2.001.783.56
Reverse Missionary2.001.683.37
No Character Sprites2.001.633.26
Only a Single Heroine2.671.012.70
Anal Penetration2.001.322.65
Gaping1.002.442.44
Lolicon1.291.742.24
Only Virgin Heroines2.001.082.17
Sitting Sex2.001.062.11
Pregnant Sex1.671.181.97
Heroine with a Braid1.001.961.96
Nukige3.000.651.95
Loli Heroine1.601.191.91
Sex with Sleepers1.001.901.90
Wake-up Sex1.001.811.81
Vibrators1.501.151.73
Defloration2.000.761.52
Masturbation1.001.501.50
Sex in Water1.001.411.41
Multiple Penetration1.001.281.28
Bathroom Sex1.001.191.19
Blowjob1.001.121.12
Quickie Fix Position1.001.121.12
Cowgirl1.000.840.84
Male Protagonist2.750.300.83
Sexual Content1.000.630.63
Rapist Protagonist0.331.750.58
ADV2.000.140.29
0.330.000.00

Traits (62 total)

NameCharactersImportanceWeight
Tickle Torture Engages in (Sexual)13.962.74
Inbreeding Engages in (Sexual)22.212.42
Tickle Torture Subject of (Sexual)13.242.25
Vaginal Multiple Objects Insertion Subject of (Sexual)12.831.96
Furisode Clothes12.771.92
Sleep Sex Engages in (Sexual)12.761.91
Sleep Sex Subject of (Sexual)12.491.73
Armpit Sex Engages in (Sexual)12.491.72
Wake-up Sex Subject of (Sexual)12.481.72
Bestiality Engages in (Sexual)12.461.70
Incest Engages in (Sexual)21.471.61
Rope Bondage Harness Clothes12.291.59
Vaginal + Anal Object Insertion Subject of (Sexual)12.251.56
Bathroom Sex Engages in (Sexual)21.391.52
Tiny Braid Hair12.071.44
Ankle Socks Clothes12.011.40
Vibrator Subject of (Sexual)11.971.36
Full Brother Role11.951.35
Vaginal Gaping Engages in (Sexual)11.951.35
Quickie Fix Engages in (Sexual)11.881.30
Sexual Blindfold Subject of (Sexual)11.861.29
Intercrural Sex Engages in (Sexual)11.841.28
Handjob Engages in (Sexual)21.161.27
Hidden Eyes11.801.25
Anal Sex Engages in (Sexual)11.761.22
Pajamas Clothes11.751.21
Missionary Engages in (Sexual)11.741.21
Reverse Missionary Subject of (Sexual)11.741.20
Cowgirl Engages in (Sexual)11.711.19
Group Sex of One Female and Several Males Engages in (Sexual)11.701.18
Rope Bondage Subject of (Sexual)11.671.16
Garnet Eyes11.661.15
Small Breasts Body11.651.15
Double Penetration (Group Sex) Subject of (Sexual)11.651.14
Mini-dress Clothes11.641.13
Bondage Sex Subject of (Sexual)11.581.10
Sex in Water Engages in (Sexual)11.561.08
Blowjob Subject of (Sexual)11.521.05
Pissing Engages in (Sexual)11.471.02
Kid Body11.370.95
Bukkake Subject of (Sexual)11.350.94
Pubic Hair Hair11.340.93
Ribbon Hair Tie Clothes11.190.83
Anal Sex Subject of (Sexual)11.190.82
Standing Sex Subject of (Sexual)11.180.81
Butterfly Subject of (Sexual)11.170.81
Cunnilingus Subject of (Sexual)11.160.81
Outdoor Sex Engages in (Sexual)11.160.80
Quickie Fix Subject of (Sexual)11.080.75
Vaginal Fingering Subject of (Sexual)11.080.75
Sitting Sex Subject of (Sexual)11.060.74
Spiky Bangs Hair11.000.69
Cowgirl Subject of (Sexual)10.950.66
Straight Hair10.940.65
Doggy Style Subject of (Sexual)10.920.64
Shoulder-length Hair10.920.64
Black Hair10.810.56
Blowjob Engages in (Sexual)10.760.53
Brown Hair10.680.47
Short Hair10.610.42
Slim Body10.580.40
Pale Body10.370.25