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Summary

An ordinary family of four: The father, Tomoyuki, an ordinary office worker. The mother, Rinne, a full time housewife. The elder brother, Taketo, and the younger sister, Maasa, separated by a few years. Siblings that usually fight, before he realizes he has become aware that his sister's body has begun to change. And so, one summer day: "Hey.... do you want to try it?" Taketo says teasingly licking his sister's body. "Ohhh... ahh... onii-chan...!" Unexpectedly, his sister has a pained reaction. But Taketo continues his relentless passionate assault, and so little by little his younger sister's body begins to crave the experience... [Translated from the official website]

Stopping!!! 3 Reaction mo Aru yo Gakuen Hen
Stopping!!! 3 Reaction mo Aru yo Gakuen Hen
NAN%
Tags
  • Time Stop
  • Ugly Protagonist
  • Chubby Protagonist
  • Unavoidable Rape
  • Protagonist with Glasses
Rating 5.8827 Users
Aniyome Chijoku no Time Sale ~Otto ni wa Ienai, Himitsu no Part~
Aniyome Chijoku no Time Sale ~Otto ni wa Ienai, Himitsu no Part~
NAN%
Tags
  • Body Food
  • Clothed Male Naked Female
  • Rape with Blackmail
  • Sexual Devices
  • Production of Pornography (Amateur)
Rating 6.3412 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 7.0820 Users
Asarori
Asarori
NAN%
Tags
  • Body Swapping
  • Elementary School Student Hero
  • Unlock All Scenes Option
  • Elementary School Student Protagonist
  • Elementary School
Rating 5.8214 Users
In
In'yoku Celeb Tsuma 2 ~Chijoku Seisai~
NAN%
Tags
  • Sexual Slavery
  • Netori
  • Body Piercing
  • Married Heroine
  • Modern Day Japan
Rating 6.8621 Users
Douryou no Oku-san ~Netori Tsuma, Netorare Tsuma~
Douryou no Oku-san ~Netori Tsuma, Netorare Tsuma~
NAN%
Tags
  • Netori
  • Clothed Male Naked Female
  • Love Hotel
  • Wake-up Sex
  • Sex in a Vehicle
Rating 7.0626 Users
Ai Shimai ~Futari no Kajitsu~
Ai Shimai ~Futari no Kajitsu~
NAN%
Tags
  • Blood-related Sister/Sister Incest
  • Non-twin Heroine Sisters
  • Rape with Blackmail
  • Rapist Protagonist
  • Sexual Slavery
Rating 6.5322 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
Soul Foundation+
Soul Foundation+
NAN%
Tags
  • Gundam
  • Flat Tints Only
  • Blowjob Duck Face
  • Heroine with Huge Breasts
  • Fan-fiction
Rating 6.8121 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
Demiparadoxia ∞ Hookerstic - Nanka Hen
Demiparadoxia ∞ Hookerstic - Nanka Hen
NAN%
Tags
  • Prostitute Heroine
  • Pubic Hair Option
  • Hotel
  • Customization
  • Sex Involving Prostitution
Rating 6.2228 Users
Love Fetish ~Tekoki Hen~
Love Fetish ~Tekoki Hen~
NAN%
Tags
  • Flat Tints Only
  • High Sexual Content
  • Modern Day
  • Tsundere Heroine
  • Perverted Heroine
Rating 6.7722 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
Love Fetish ~Nozoki Onani Hen~
Love Fetish ~Nozoki Onani Hen~
NAN%
Tags
  • Humping
  • Flat Tints Only
  • Masturbation with Object
  • Small Breast Sizes Heroine (Non-Loli)
  • Bokukko Heroine
Rating 7.0716 Users
Shiawase na Ohime-sama ~Engage wa Kozukuri no Tame ni~
Shiawase na Ohime-sama ~Engage wa Kozukuri no Tame ni~
NAN%
Tags
  • Palace
  • Princess Heroine
  • Royal Heroine
  • Royal Protagonist
  • Triple Boobjob
Rating 7.3511 Users
Hatsujou Exorcist! ~Harau to Hatsujou Suru Ojou-sama ni Tsukaetemasu.~
Hatsujou Exorcist! ~Harau to Hatsujou Suru Ojou-sama ni Tsukaetemasu.~
NAN%
Tags
  • Yuki-onna Heroine
  • Butler Protagonist
  • Dragon Heroine
  • Exorcism
  • Sex Under the Necessity
Rating 6.6432 Users
Kabe ni Hamatte Ugokenai!
Kabe ni Hamatte Ugokenai!
NAN%
Tags
  • Stuck-in-Wall Sex
  • Anal Rape
  • Unavoidable Heroine Rape
  • Airhead Heroine
  • Confinement
Rating 5.5942 Users
Kodomo no Himitsu
Kodomo no Himitsu
NAN%
Tags
  • Elementary School
  • Elementary School Student Heroine
  • Student-Teacher Romance
  • Sex Involving Children
  • Winter
Rating 6.3320 Users
Saint Dorei Onna Kyoushi
Saint Dorei Onna Kyoushi
NAN%
Tags
  • Nun Heroine
  • Rapist Protagonist
  • Twin Sisters as Heroines
  • School
  • Teacher Heroine
Rating 6.8639 Users
D-EVE in you
D-EVE in you
NAN%
Tags
  • Japanese Idols
  • Idol Heroine
  • Singer Heroine
  • Heroine with Intake Hairstyle
  • Exhibitionism
Rating 7.0925 Users
Chocolate Princess! ~Ingoku no!? Homestay~
Chocolate Princess! ~Ingoku no!? Homestay~
NAN%
Tags
  • Huge Insertion
  • Mermaid Heroine
  • Gaping
  • Inflation
  • Heroine with Visible Panties
Rating 6.9527 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 6.4723 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
Hikage de Sukusuku
Hikage de Sukusuku
NAN%
Tags
  • Ugly Protagonist
  • Flat Tints Only
  • Straight Lolicon
  • Sex Involving Children
  • Only Loli Heroines
Rating 6.3820 Users
Imouto Ninshin
Imouto Ninshin
74%
Tags
  • Inbreeding
  • Only Blood-related Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Only Younger Heroines
  • Impregnation
Rating 5.5522 Users
Love Fetish ~Paizuri Hen~
Love Fetish ~Paizuri Hen~
55%
Tags
  • Flat Tints Only
  • Reverse Trap Heroine
  • Naizuri
  • Small Breast Sizes Heroine (Non-Loli)
  • Bokukko Heroine
Rating 6.8020 Users
Love Fetish ~Nozoki Onani Hen~
Love Fetish ~Nozoki Onani Hen~
49%
Tags
  • Humping
  • Flat Tints Only
  • Masturbation with Object
  • Small Breast Sizes Heroine (Non-Loli)
  • Bokukko Heroine
Rating 7.0716 Users
Love Fetish ~Ashi Fetish Ashikoki Hen~
Love Fetish ~Ashi Fetish Ashikoki Hen~
49%
Tags
  • Feet Licking
  • Flat Tints Only
  • Footjob
  • Legwear Footjob
  • Modern Day
Rating 7.1224 Users
Love Fetish ~Tekoki Hen~
Love Fetish ~Tekoki Hen~
44%
Tags
  • Flat Tints Only
  • High Sexual Content
  • Modern Day
  • Tsundere Heroine
  • Perverted Heroine
Rating 6.7722 Users
Momojiri Taiiku Onna Kyoushi
Momojiri Taiiku Onna Kyoushi
43%
Tags
  • Heroine with Tights
  • P.E. Teacher Heroine
  • Braless Heroine
  • Unavoidable Heroine Rape by the Protagonist
  • Lots of Event CGs
Rating 6.2020 Users
Demiparadoxia ∞ Hookerstic - Nanka Hen
Demiparadoxia ∞ Hookerstic - Nanka Hen
41%
Tags
  • Prostitute Heroine
  • Pubic Hair Option
  • Hotel
  • Customization
  • Sex Involving Prostitution
Rating 6.2228 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
41%
Tags
  • Pedophile Protagonist
  • Trap Heroine
  • Domicile
  • Quiz Game
  • Sickly Heroine
Rating 6.2222 Users
Soul Foundation+
Soul Foundation+
41%
Tags
  • Gundam
  • Flat Tints Only
  • Blowjob Duck Face
  • Heroine with Huge Breasts
  • Fan-fiction
Rating 6.8121 Users
Hatsujou Exorcist! ~Harau to Hatsujou Suru Ojou-sama ni Tsukaetemasu.~
Hatsujou Exorcist! ~Harau to Hatsujou Suru Ojou-sama ni Tsukaetemasu.~
40%
Tags
  • Yuki-onna Heroine
  • Butler Protagonist
  • Dragon Heroine
  • Exorcism
  • Sex Under the Necessity
Rating 6.6432 Users
Kodomo no Himitsu
Kodomo no Himitsu
40%
Tags
  • Elementary School
  • Elementary School Student Heroine
  • Student-Teacher Romance
  • Sex Involving Children
  • Winter
Rating 6.3320 Users
D-EVE in you
D-EVE in you
39%
Tags
  • Japanese Idols
  • Idol Heroine
  • Singer Heroine
  • Heroine with Intake Hairstyle
  • Exhibitionism
Rating 7.0925 Users
Demiparadoxia ∞ Hookerstic - Hokujou Hen
Demiparadoxia ∞ Hookerstic - Hokujou Hen
38%
Tags
  • Prostitute Heroine
  • Heroine with Anal Hair
  • Heroine with Armpit Hair
  • Pubic Hair Option
  • Hotel
Rating 6.4723 Users
Hikage de Sukusuku
Hikage de Sukusuku
38%
Tags
  • Ugly Protagonist
  • Flat Tints Only
  • Straight Lolicon
  • Sex Involving Children
  • Only Loli Heroines
Rating 6.3820 Users
Chikan Ou ~In
Chikan Ou ~In'yoku no Kaihousha~
37%
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
37%
Tags
  • Bisexual Heroine
  • Autocunnilingus
  • Big Breast Sizes Heroine
  • Sexual Devices
  • Sex in a Classroom
Rating 6.5922 Users
Imouto Pet ~Repure~
Imouto Pet ~Repure~
37%
Tags
  • Elementary School Student Heroine
  • Voiced Narration
  • Deredere Heroine
  • Brocon Heroine
  • Heroine with Spats
Rating 6.8137 Users
Lilith-Izm07 ~Ore no Pet Hen~
Lilith-Izm07 ~Ore no Pet Hen~
36%
Tags
  • Yuki-onna Heroine
  • All the Way Through
  • BDSM
  • Anthology
  • Mahou Shoujo Heroine
Rating 6.3324 Users
Stopping!!! 9: Natsu no Omoide Hen
Stopping!!! 9: Natsu no Omoide Hen
35%
Tags
  • Time Stop
  • Ugly Protagonist
  • Chubby Protagonist
  • Unavoidable Rape
  • Rapist Protagonist
Rating 6.2222 Users
Majo no Shokuzai
Majo no Shokuzai
35%
Tags
  • Middle Ages Europe
  • Strategy Game
  • Turn-Based Strategy
  • Sex in Front of an Audience
  • Late Branching Plot
Rating 6.9118 Users
Ryoujoku Gakuenchou / Dorei Club ~Dokushin Choukyouroku~
Ryoujoku Gakuenchou / Dorei Club ~Dokushin Choukyouroku~
35%
Tags
  • Human Cattle
  • Sexual Slavery
  • Heroine with Armpit Hair
  • Heroine with Latex
  • Mouth Gag
Rating 7.0536 Users
Rin x Sen ~Hakudaku Onna Kyoushi to Yaroudomo~
Rin x Sen ~Hakudaku Onna Kyoushi to Yaroudomo~
34%
Tags
  • Clothed Male Naked Female
  • All-boys School
  • Yakuza
  • High Amounts of Rape
  • Teacher Heroine
Rating 7.5229 Users
Crayon Tulip ~Chidori to Koruri no Yuuwaku Jugyou~
Crayon Tulip ~Chidori to Koruri no Yuuwaku Jugyou~
34%
Tags
  • Elementary School Student Heroine
  • Sex Involving Children
  • Protagonist's Younger Sister as a Heroine
  • Twin Sisters as Heroines
  • Non-blood-related Brother/Sister Incest
Rating 6.4532 Users
Lilith-Izm05 ~Tairyou Shasei Hen~
Lilith-Izm05 ~Tairyou Shasei Hen~
34%
Tags
  • P.E. Teacher Heroine
  • Anthology
  • Half-Japanese Heroine
  • Unavoidable Rape
  • Mindbreak
Rating 6.2225 Users

Imouto Ninshin 2 ~In-Tai-Mon-Zetsu~ 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 (50 total)

NameScoreImportanceWeight
Inbred Protagonist3.003.179.51
Inbred Heroine3.002.978.92
Brother/Sister Incest3.002.056.14
Inbreeding3.001.985.95
Only Blood-related Heroines2.002.104.21
Only Protagonist's Sisters as Heroine(s)2.001.993.98
Only Younger Heroines2.001.943.89
Suspension Bondage2.001.903.80
Only Loli Heroines2.001.773.54
Dildos2.001.743.47
No Character Sprites2.001.643.27
Only a Single Heroine3.001.023.06
Pregnancy2.001.523.05
Armpit Sex1.502.003.00
Single Hole Multiple Penetration (obsolete)1.002.772.77
Impregnation2.001.372.74
Tickle Torture1.002.742.74
Anal Penetration2.001.322.63
Gaping1.002.432.43
Pregnant Sex2.001.182.35
Vibrators2.001.152.30
Blowjob2.001.112.23
Quickie Fix Position2.001.112.23
Bondage2.001.112.21
Outdoor Sex2.001.001.99
Sex with Sleepers1.001.911.91
Heroine with Kimono1.001.881.88
Bestiality1.001.831.83
Cowgirl2.000.841.68
Excessive Semen1.001.651.65
Nukige2.500.651.63
Doggy Style2.000.801.61
Sexual Blindfold1.001.531.53
Fingering1.001.521.52
Masturbation1.001.491.49
Double Penetration (Group Sex)1.001.451.45
Sex in Water1.001.411.41
Cunnilingus1.500.931.40
Intercrural Sex1.001.341.34
Multiple Endings2.000.671.34
Multiple Penetration1.001.271.27
Bukkake1.001.201.20
Bathroom Sex1.001.191.19
Lolicon0.671.731.16
Group Sex of One Female and Several Males1.001.081.08
Standing Sex1.001.061.06
Sitting Sex1.001.061.06
Male Protagonist3.000.300.91
ADV2.000.150.29
2.000.000.00

Traits (50 total)

NameCharactersImportanceWeight
Tickle Torture Subject of (Sexual)13.242.24
Vaginal Multiple Objects Insertion Subject of (Sexual)12.831.96
Furisode Clothes12.761.91
Sleep Sex Subject of (Sexual)12.491.73
Wake-up Sex Subject of (Sexual)12.481.72
Armpit Sex Engages in (Sexual)12.481.72
Bestiality Engages in (Sexual)12.451.70
Rope Bondage Harness Clothes12.291.59
Vaginal + Anal Object Insertion Subject of (Sexual)12.261.57
Inbreeding Engages in (Sexual)12.211.53
Tiny Braid Hair12.071.43
Ankle Socks Clothes12.011.39
Vibrator Subject of (Sexual)11.981.37
Vaginal Gaping Engages in (Sexual)11.951.35
Sexual Blindfold Subject of (Sexual)11.851.28
Intercrural Sex Engages in (Sexual)11.851.28
Pajamas Clothes11.751.21
Reverse Missionary Subject of (Sexual)11.731.20
Group Sex of One Female and Several Males Engages in (Sexual)11.701.18
Rope Bondage Subject of (Sexual)11.671.16
Small Breasts Body11.671.15
Garnet Eyes11.661.15
Double Penetration (Group Sex) Subject of (Sexual)11.651.14
Mini-dress Clothes11.641.13
Bondage Sex Subject of (Sexual)11.571.09
Sex in Water Engages in (Sexual)11.561.08
Incest Engages in (Sexual)11.471.02
Pissing Engages in (Sexual)11.461.02
Bathroom Sex Engages in (Sexual)11.390.96
Kid Body11.370.95
Bukkake Subject of (Sexual)11.350.93
Ribbon Hair Tie Clothes11.190.83
Anal Sex Subject of (Sexual)11.190.82
Standing Sex Subject of (Sexual)11.180.82
Butterfly Subject of (Sexual)11.170.81
Cunnilingus Subject of (Sexual)11.160.81
Handjob Engages in (Sexual)11.160.80
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 Hair10.950.66
Doggy Style Subject of (Sexual)10.930.64
Shoulder-length Hair10.920.64
Blowjob Engages in (Sexual)10.760.53
Brown Hair10.680.47
Slim Body10.580.40
Pale Body10.370.26