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Summary

You have transferred to the same school as your younger step sister, Sayo. But, Sayo has fallen victim to a dastardly trap set by the school's queen bee Elena and is now a raving sex addict. Will you attempt to save Sayo, or perhaps lend a helping hand in her descent into debauchery? A secret after school stage of sex, service and gangbangery. [From DLsite]

Toriko no Tsubasa ~Butaiura de Midara ni Odoru Marionnette~
Toriko no Tsubasa ~Butaiura de Midara ni Odoru Marionnette~
NAN%
Tags
  • Actress Heroine
  • Production of Pornography (Professional)
  • Anal Object Insertion
  • Anal Plug Tail
  • Double Penetration (Group Sex)
Rating 7.5250 Users
Ryakudatsusha no In
Ryakudatsusha no In'en
NAN%
Tags
  • Slave Heroine
  • Mass Murder
  • Ejaculation Forewarner
  • Utsuge
  • Torture
Rating 6.4381 Users
Entomo ~Futari Matomete Kawaigatte ne, Papa~
Entomo ~Futari Matomete Kawaigatte ne, Papa~
NAN%
Tags
  • Anal Fisting
  • Unavoidable Netorare
  • Anal Masturbation
  • Voiced Thoughts
  • Prostitute Heroine
Rating 6.2442 Users
Ubai Ending ~Hito no Onna, Saigo made Urimasu~
Ubai Ending ~Hito no Onna, Saigo made Urimasu~
NAN%
Tags
  • Pimp/Madam Protagonist
  • Mischievous Heroine
  • Yamato Nadeshiko Heroine
  • Prostitute Heroine
  • Sex Involving Prostitution
Rating 6.7626 Users
Hara Katsu! 3 ~Kozukuri Business Haigyou no Kiki!?~
Hara Katsu! 3 ~Kozukuri Business Haigyou no Kiki!?~
NAN%
Tags
  • Group (4+) Boobjob
  • Divorcee Heroine
  • Actress Heroine
  • Only Adult Heroines
  • Onahole
Rating 6.9834 Users
Saimin Massage Tanetsuke Oji-san ~Nani mo Shirazu ni Haramasareru Seiso Hitozuma~
Saimin Massage Tanetsuke Oji-san ~Nani mo Shirazu ni Haramasareru Seiso Hitozuma~
NAN%
Tags
  • Erotic Massage
  • Massage Therapist Protagonist
  • Only Non-Virgin Heroines
  • Mind Control
  • Netori
Rating 5.6821 Users
Slime Musume no Sodatekata
Slime Musume no Sodatekata
NAN%
Tags
  • Slime Heroine
  • Sex with Monster Girls
  • Drastic Character Development
  • Musume-type Heroine
  • Monster Girl Heroine
Rating 6.4628 Users
Seiso de Majime na Kanojo ga, Saikyou Yaricir ni Kan
Seiso de Majime na Kanojo ga, Saikyou Yaricir ni Kan'yuu Saretara…?
NAN%
Tags
  • Unavoidable Netorare
  • Sexual Corruption
  • Rape Involving Drugs
  • Discreet Masturbation
  • Masturbation in front of an Audience
Rating 6.4251 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~
NAN%
Tags
  • Invisibility
  • Rapist Protagonist
  • Villainous Protagonist
  • High Amounts of Rape
  • Siscon Protagonist
Rating 6.3133 Users
Nightmare x Onmyoji ~Kindan no Paradox~
Nightmare x Onmyoji ~Kindan no Paradox~
NAN%
Tags
  • Librarian Hero
  • Nun Support Character
  • Onmyouji Protagonist
  • Cult
  • Combat Capable Friends
Rating 6.7967 Users
Boku no Kanojo ga Konna Kimo-o no Yome ni! ~Gomen ne, Watashi no Shikyuu wa Darling Sen
Boku no Kanojo ga Konna Kimo-o no Yome ni! ~Gomen ne, Watashi no Shikyuu wa Darling Sen'you ni Sarechatta♪~
NAN%
Tags
  • Netorare Type B
  • Sex in a School Infirmary
  • Unavoidable Netorare
  • Visible Cervix Penetration
  • Student Council President Heroine
Rating 6.1233 Users
Custom Order Maid 3D 2
Custom Order Maid 3D 2
NAN%
Tags
  • Chest Bounciness Slider
  • Motion Controls
  • Host Club Heroine
  • VR Headset Support
  • Free Camera
Rating 7.99187 Users
Seed of the Dead: Sweet Home
Seed of the Dead: Sweet Home
NAN%
Tags
  • Shooter Game
  • Zombie
  • Necrophilia
  • Dying Sex
  • Guro
Rating 6.7733 Users
Seikishi Ricca no Monogatari: Hakuyoku to In
Seikishi Ricca no Monogatari: Hakuyoku to In'yoku no Shimai
NAN%
Tags
  • Platform Game
  • Odyssey
  • Rape on Defeat
  • Action Game
  • High Fantasy
Rating 8.01165 Users
Nightmare x Sisters ~Ingoku no Sacrifice~
Nightmare x Sisters ~Ingoku no Sacrifice~
NAN%
Tags
  • Nun Protagonist
  • Christian Church
  • Protagonist with Big Breasts
  • Exorcism
  • Cult
Rating 6.63123 Users
Nightmare x Vampire ~Fukushuu no Inferno~
Nightmare x Vampire ~Fukushuu no Inferno~
NAN%
Tags
  • Transfer Student Protagonist
  • Monster Birth
  • Bleep Censor
  • Hairjob
  • Rape
Rating 6.9165 Users
Chikan no Shoudou If
Chikan no Shoudou If
NAN%
Tags
  • Chikan Protagonist
  • Rapist Protagonist
  • Office Lady Heroine
  • Molestation on Public Transport
  • Interactive Touching Game
Rating 6.7823 Users
Netoraren
Netoraren'ai ~Ai Suru Kanojo ga Musunda Midara na Keiyaku~
NAN%
Tags
  • Dog Cosplay
  • Sex Wearing Panties On Face
  • Food Gokkun
  • Defloration by Others
  • Sexual Devices
Rating 7.41100 Users
Ryuusei Pendulum Heart
Ryuusei Pendulum Heart
NAN%
Tags
  • Alien Heroine
  • Police Officer Heroine
  • Transformation Sequence(s)
  • Fighting Heroine
  • Science Fiction
Rating 6.21102 Users
Do M Imouto Onedari Kojin Lesson ~Watashi no SEX Katei Kyoushi Onii-chan~
Do M Imouto Onedari Kojin Lesson ~Watashi no SEX Katei Kyoushi Onii-chan~
NAN%
Tags
  • Protagonist's Non-blood-related Sister as a Heroine
  • Office Lady Heroine
  • Shimaidon Ending
  • Masochist Heroine
  • Protagonist's Sister as a Heroine
Rating 6.8648 Users
Isekai Sakaba no Sextet ~Vol.3 Postlude Days~
Isekai Sakaba no Sextet ~Vol.3 Postlude Days~
NAN%
Tags
  • Heroine from a Different World
  • Priestess Heroine
  • Unavoidable Harem Ending
  • Polyamory
  • Protagonist from a Different World
Rating 6.75267 Users
Haishinsha no Chouten ni Ore wa Tatsu! - Subete o Ubae! Mezase 100 Man Shasei!!
Haishinsha no Chouten ni Ore wa Tatsu! - Subete o Ubae! Mezase 100 Man Shasei!!
NAN%
Tags
  • Online Streamer Protagonist
  • Live Sexual Broadcast
  • Dancer Heroine
  • Haraguro Heroine
  • Social Networking Service
Rating 6.6322 Users
Ai Suru Tsuma wa, Kyou mo Hoka no Otoko ni Dakarete Iku ~ Taninbou de Midare Nikuyoku o Mitashite Iku Ore no Tsuma
Ai Suru Tsuma wa, Kyou mo Hoka no Otoko ni Dakarete Iku ~ Taninbou de Midare Nikuyoku o Mitashite Iku Ore no Tsuma
NAN%
Tags
  • Protagonist's Wife as a Heroine
  • Condoms
  • Heroine Having Sex with Others
  • Adult Heroine
  • Adult Protagonist
Rating 6.2720 Users
Netorare Osananajimi ~Saimin Nikubou Chuudoku~
Netorare Osananajimi ~Saimin Nikubou Chuudoku~
NAN%
Tags
  • Mind Control
  • Mindbreak
  • Built-in Flowchart
  • Remote-controlled Vibrator
  • Netorare
Rating 6.9921 Users
INSULT ORDER ~Namaiki Nyanko no Kaida Menu~
INSULT ORDER ~Namaiki Nyanko no Kaida Menu~
77%
Tags
  • Realtime 3D
  • Prostitute Heroine
  • Sexual Corruption
  • Heroine Based on Real Person
  • Hairstyle Option
Rating 7.0628 Users
Anonymous
Anonymous
17%
Tags
  • High Amount of Special Effects
  • Psychological Horror
  • Depression
  • Blackmail
  • Unavoidable Rape
Rating 6.9334 Users
Seikishi Ricca no Monogatari: Hakuyoku to In
Seikishi Ricca no Monogatari: Hakuyoku to In'yoku no Shimai
17%
Tags
  • Platform Game
  • Odyssey
  • Rape on Defeat
  • Action Game
  • High Fantasy
Rating 8.01165 Users
Seed of the Dead: Sweet Home
Seed of the Dead: Sweet Home
15%
Tags
  • Shooter Game
  • Zombie
  • Necrophilia
  • Dying Sex
  • Guro
Rating 6.7733 Users
Custom Order Maid 3D 2
Custom Order Maid 3D 2
15%
Tags
  • Chest Bounciness Slider
  • Motion Controls
  • Host Club Heroine
  • VR Headset Support
  • Free Camera
Rating 7.99187 Users
Nightmare x Onmyoji ~Kindan no Paradox~
Nightmare x Onmyoji ~Kindan no Paradox~
14%
Tags
  • Librarian Hero
  • Nun Support Character
  • Onmyouji Protagonist
  • Cult
  • Combat Capable Friends
Rating 6.7967 Users
Boku no Kanojo ga Konna Kimo-o no Yome ni! ~Gomen ne, Watashi no Shikyuu wa Darling Sen
Boku no Kanojo ga Konna Kimo-o no Yome ni! ~Gomen ne, Watashi no Shikyuu wa Darling Sen'you ni Sarechatta♪~
13%
Tags
  • Netorare Type B
  • Sex in a School Infirmary
  • Unavoidable Netorare
  • Visible Cervix Penetration
  • Student Council President Heroine
Rating 6.1233 Users
Seiso de Majime na Kanojo ga, Saikyou Yaricir ni Kan
Seiso de Majime na Kanojo ga, Saikyou Yaricir ni Kan'yuu Saretara…?
12%
Tags
  • Unavoidable Netorare
  • Sexual Corruption
  • Rape Involving Drugs
  • Discreet Masturbation
  • Masturbation in front of an Audience
Rating 6.4251 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~
12%
Tags
  • Invisibility
  • Rapist Protagonist
  • Villainous Protagonist
  • High Amounts of Rape
  • Siscon Protagonist
Rating 6.3133 Users
Nightmare x Vampire ~Fukushuu no Inferno~
Nightmare x Vampire ~Fukushuu no Inferno~
12%
Tags
  • Transfer Student Protagonist
  • Monster Birth
  • Bleep Censor
  • Hairjob
  • Rape
Rating 6.9165 Users
Netoraren
Netoraren'ai ~Ai Suru Kanojo ga Musunda Midara na Keiyaku~
12%
Tags
  • Dog Cosplay
  • Sex Wearing Panties On Face
  • Food Gokkun
  • Defloration by Others
  • Sexual Devices
Rating 7.41100 Users
Do M Imouto Onedari Kojin Lesson ~Watashi no SEX Katei Kyoushi Onii-chan~
Do M Imouto Onedari Kojin Lesson ~Watashi no SEX Katei Kyoushi Onii-chan~
11%
Tags
  • Protagonist's Non-blood-related Sister as a Heroine
  • Office Lady Heroine
  • Shimaidon Ending
  • Masochist Heroine
  • Protagonist's Sister as a Heroine
Rating 6.8648 Users
Haishinsha no Chouten ni Ore wa Tatsu! - Subete o Ubae! Mezase 100 Man Shasei!!
Haishinsha no Chouten ni Ore wa Tatsu! - Subete o Ubae! Mezase 100 Man Shasei!!
11%
Tags
  • Online Streamer Protagonist
  • Live Sexual Broadcast
  • Dancer Heroine
  • Haraguro Heroine
  • Social Networking Service
Rating 6.6322 Users
Netorare Osananajimi ~Saimin Nikubou Chuudoku~
Netorare Osananajimi ~Saimin Nikubou Chuudoku~
11%
Tags
  • Mind Control
  • Mindbreak
  • Built-in Flowchart
  • Remote-controlled Vibrator
  • Netorare
Rating 6.9921 Users
Enkou Fantasy ~Ai to Yuuki to Enkou de Sekai o Sukuu Monogatari~
Enkou Fantasy ~Ai to Yuuki to Enkou de Sekai o Sukuu Monogatari~
11%
Tags
  • Sexual Scenes with Gameplay
  • Sex Involving Prostitution
  • Difficulty Settings
  • Villainous Heroine
  • Gyaru Heroine
Rating 6.7321 Users
JK Netori Oni Choukyou ~Gakuen 400-nin no Seishorigakari, Netorare Haramaserareta Seido Iin~
JK Netori Oni Choukyou ~Gakuen 400-nin no Seishorigakari, Netorare Haramaserareta Seido Iin~
11%
Tags
  • Genital Piercing
  • Voiced Thoughts
  • Nipple Piercing
  • Late Branching Plot
  • Feet Licking
Rating 6.1026 Users
Ano, Itsumo Akarukute Genki na Oba-san ga, Kusogaki ni Mesuinu Choukyou Sarete Jukujo Kei Ero Zasshi de Ikigao o Sarasu Nante...
Ano, Itsumo Akarukute Genki na Oba-san ga, Kusogaki ni Mesuinu Choukyou Sarete Jukujo Kei Ero Zasshi de Ikigao o Sarasu Nante...
11%
Tags
  • Protagonist's Aunt as a Heroine
  • Only Protagonist's Relatives as Heroine(s)
  • BDSM
  • Sexual Slavery
  • Nose Hook
Rating 6.6322 Users
Nightmare x Deathscythe ~Hangyaku no Resonance~
Nightmare x Deathscythe ~Hangyaku no Resonance~
10%
Tags
  • Shinigami Protagonist
  • Unavoidable Heroine Rape
  • Gang Rape
  • Remote-controlled Vibrator
  • Sex Involving Prostitution
Rating 7.3329 Users
Toriko no Kusari ~Otome-tachi o Kegasu Midara na Kusabi~
Toriko no Kusari ~Otome-tachi o Kegasu Midara na Kusabi~
10%
Tags
  • Tennis Club
  • Nude Filter
  • Swimming Club
  • Spreader Bar
  • Blowbang
Rating 7.2778 Users
Jokuaku Saimin 180 Byou ~Me ga Sametara Hishojo ni Natteita~
Jokuaku Saimin 180 Byou ~Me ga Sametara Hishojo ni Natteita~
10%
Tags
  • Revenge
  • Public Use (Choukyou or Non-Consensual)
  • Erotic Mind Control
  • Athlete Heroine
  • Spreader Bar
Rating 6.2623 Users
Wanna. ~SpartanSex Spermax!!!~
Wanna. ~SpartanSex Spermax!!!~
10%
Tags
  • Delinquent Protagonist
  • Rape with Blackmail
  • Blackmail
  • High Amounts of Rape
  • Anal Rape
Rating 6.7934 Users
Aiyoku no Apron
Aiyoku no Apron
10%
Tags
  • Netorare Type B
  • Consensual Phone Sex
  • Netorare
  • Hero with Beauty Mark
  • Modern Tsundere Heroine
Rating 7.1420 Users
Aisai Netorare ~Ijimekko datta DQN-tachi to no Saikai de Shinkon Seikatsu ga Nurikaerarete...~
Aisai Netorare ~Ijimekko datta DQN-tachi to no Saikai de Shinkon Seikatsu ga Nurikaerarete...~
10%
Tags
  • Linked Piercings
  • Netorare Type B
  • Protagonist's Wife as a Heroine
  • Nipple Piercing
  • Internal Exhibition of Sex
Rating 6.2037 Users
Futanari Haha to Josou Shounen to Haha no Shasei Kanri o Suru Manamusume.
Futanari Haha to Josou Shounen to Haha no Shasei Kanri o Suru Manamusume.
10%
Tags
  • Blood-related Mother/Daughter Incest
  • Binaural Audio
  • Selfcest
  • Futanari on Male
  • Group Sex with Clones
Rating 6.1524 Users

Houkago Rinkan Chuudoku 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 (17 total)

NameScoreImportanceWeight
Realtime 3D3.002.216.64
Non-blood-related Brother/Sister Incest3.001.775.30
Gang Rape3.001.494.46
Anime-looking 3D2.001.993.99
Nympho Heroine2.001.833.67
Heroine Having Sex with Others2.001.523.05
Free Camera1.002.912.91
Avoidable Netorare (obsolete)1.002.582.58
Heroine with Sexual Experience2.001.222.43
Avoidable Rape1.002.342.34
Hairstyle Option1.002.322.32
Bondage2.001.112.21
Netorare Type A1.002.152.15
Changeable Clothes1.002.052.05
High Amount of Bad Endings1.001.731.73
Heroine with Big Breasts2.000.851.71
Sexual Content2.000.631.26

Traits (47 total)

NameCharactersImportanceWeight
Customizable Appearance Role22.753.02
Mindbreak Subject of (Sexual)22.032.23
Sex with Others Engages in (Sexual)21.992.18
Blazer School Uniform Clothes21.922.11
Gang Rape Subject of (Sexual)21.892.08
Double Handjob Engages in (Sexual)21.892.07
Rape by Proxy Engages in (Sexual)12.972.06
Coercion Subject of12.831.96
Avoidable Sex with Others Engages in (Sexual)12.771.92
Spit-roast Subject of (Sexual)21.751.92
Group Sex of One Female and Several Males Engages in (Sexual)21.701.87
Double Penetration (Group Sex) Subject of (Sexual)21.651.81
Bondage Engages in12.551.76
Rape Subject of (Sexual)21.561.72
Quiet Personality12.461.70
Haraguro Personality12.371.64
Nymphomania Subject of12.321.60
Pissing on Others Engages in (Sexual)12.271.57
Non-blood-related Sister Role12.171.50
Non-blood-related Incest Engages in (Sexual)12.161.49
Bukkake Subject of (Sexual)21.351.48
Netorare (they are the stolen SO) Subject of12.121.47
Short Body12.071.43
Ojousama Role11.951.35
Footjob Engages in (Sexual)11.721.19
Confident Personality11.701.18
Arrogant Personality11.701.18
Cyan Eyes11.661.15
Bondage Sex Subject of (Sexual)11.571.09
Refined Personality11.541.07
Medium Breasts Body11.521.05
Younger Sister Role11.441.00
Not a Virgin Role11.420.99
Masturbation Engages in (Sexual)11.390.96
Blue Hair11.190.83
Group Sex of One Male and Several Females Engages in (Sexual)11.170.81
Cunnilingus Subject of (Sexual)11.160.81
Big Breasts Body11.140.79
Missionary Subject of (Sexual)11.120.77
Boobjob Engages in (Sexual)11.070.74
Cowgirl Subject of (Sexual)10.950.66
Doggy Style Subject of (Sexual)10.930.64
Blond Hair10.890.62
Blue Eyes10.800.56
Blowjob Engages in (Sexual)10.760.53
Long Hair10.750.52
Short Hair10.610.42