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Summary

Without asking for his opinion, the protagonist's father announces that he is going to remarry. As such, "Kousuke" has to suddenly live with his two new step sisters. Although the sisters have opposite personalities, they get along very well. Kana, the older sister, calls herself Kousuke's "onee-chan" despite being younger than him, and has a very sunny and mature disposition. Saya, the younger sister, hates men and does nothing but glare at Kousuke when he's around. While Kousuke is still confused about the sudden developments and change in his life, his father moves to a new house with his new wife only a month later. As a result, Kousuke has to take care of his sisters. Luckily, as the sisters get along well with each other, all Kousuke needs to do is do the housework and manage the money their parents send them. And so, their peaceful life together begins. A few weeks later, Kousuke wakes up in the same bed as Kana... [Translated from Getchu]

Imosapo! ~Genkin de Low na Kyonyuu Imouto ni, Oppai Momasete Moraimashita~
Imosapo! ~Genkin de Low na Kyonyuu Imouto ni, Oppai Momasete Moraimashita~
NAN%
Tags
  • Runaway Heroine
  • Protagonist's Full Sister as a Heroine
  • Protagonist's Younger Sister as a Heroine
  • Slice of Life Comedy
  • Clothed Boobjob
Rating 7.1731 Users
Onee-san ni Makasenasai! ~Ryoubo to Joushi no Yawaraka Oppai ni Hasamarete~
Onee-san ni Makasenasai! ~Ryoubo to Joushi no Yawaraka Oppai ni Hasamarete~
NAN%
Tags
  • Dormitory Manager Heroine
  • Protagonist's Boss as a Heroine
  • Defloration During Common Route
  • Office Lady Heroine
  • Heroine with Inverted Nipples
Rating 6.7332 Users
Yuunagi-sou no S-kyuu no Kanojo-tachi 2
Yuunagi-sou no S-kyuu no Kanojo-tachi 2
NAN%
Tags
  • Share House
  • Seiyuu Heroine
  • Long Sexual Scenes
  • Heroine with Huge Breasts
  • Twin Boobjob
Rating 7.6923 Users
Haitoku no Kakure Boseiai ~Yasashi Sugiru Ecchi na Onee-san wa Okaa-san!?~
Haitoku no Kakure Boseiai ~Yasashi Sugiru Ecchi na Onee-san wa Okaa-san!?~
NAN%
Tags
  • Nursing Handjob
  • Only Blood-related Heroines
  • Only Adult Heroines
  • Only a Single Heroine
  • Heroine with Big Breasts
Rating 6.6622 Users
Love Commu
Love Commu
NAN%
Tags
  • Ojousama Heroine
  • Protagonist's Sister as a Support Character
  • All-girls School
  • Teacher Protagonist
  • More Than Seven Heroines
Rating 7.3938 Users
Imouto Smile
Imouto Smile
NAN%
Tags
  • Mangaka Heroine
  • Scenario Selection
  • Homemaker Protagonist
  • Imouto-type Heroine
  • Siscon Protagonist
Rating 6.7922 Users
Idol ★ Clinic - Koi no Kusuri de H na Shohou
Idol ★ Clinic - Koi no Kusuri de H na Shohou
NAN%
Tags
  • Defloration During Common Route
  • Impregnation Choice
  • Idol Heroine
  • Japanese Idols
  • Medical Doctor Protagonist
Rating 6.7832 Users
God Sisters
God Sisters
NAN%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Protagonist's Non-blood-related Sister as a Heroine
  • Ejaculation Forewarner
  • Background Moans
  • Heroine with a Fang
Rating 6.7337 Users
Densetsu no Yuusha to Saiyaku no Maou no Ren
Densetsu no Yuusha to Saiyaku no Maou no Ren'ai Jijou ~Yuusha wa Maou no Haha ni, Maou wa Yuusha no Mama ni Koi o Shita~
NAN%
Tags
  • Completion Status Indicator
  • Widow Heroine
  • Heroine with Children
  • Only Non-Virgin Heroines
  • Adult Breast Feeding
Rating 6.7320 Users
Oshino Ruka wa Iyashite Agetai
Oshino Ruka wa Iyashite Agetai
NAN%
Tags
  • Maid Heroine
  • Heroine with Wings
  • Harem Ending
  • Succubus Heroine
  • Twin Boobjob
Rating 7.2926 Users
Koi wa Mofumofu! Love Me Teddy
Koi wa Mofumofu! Love Me Teddy
NAN%
Tags
  • Shapeshifting
  • Yandere Heroine
  • Heroine with Tights
  • Otaku Heroine
  • Modern Tsundere Heroine
Rating 6.9622 Users
Onee-chan no Kawari ni Nuite Agemasu ~Kanojo no Imouto wa, Shikatanai Kara to Zettai ni Yarasete Kureru~
Onee-chan no Kawari ni Nuite Agemasu ~Kanojo no Imouto wa, Shikatanai Kara to Zettai ni Yarasete Kureru~
NAN%
Tags
  • Nursing Handjob
  • Pregnancy Ending
  • Infidelity
  • Perverted Heroine
  • Tsundere Heroine
Rating 6.5725 Users
Gyaru Shimai ~Harem Time ga Tomaranai!~
Gyaru Shimai ~Harem Time ga Tomaranai!~
NAN%
Tags
  • Skin Color Selection
  • Shimaidon
  • Gyaru Heroine
  • Non-twin Heroine Sisters
  • Twin Boobjob
Rating 6.4425 Users
Saimin Datsujo 3 ~Subete ga Boku no Jiyuu ni Naru Sekai e Youkoso~ Kurihara Shizuru Hen
Saimin Datsujo 3 ~Subete ga Boku no Jiyuu ni Naru Sekai e Youkoso~ Kurihara Shizuru Hen
NAN%
Tags
  • Shimaidon
  • Heroine in Relationship with Other(s)
  • Erotic Mind Control
  • Blood-related Sister/Sister Incest
  • Non-twin Heroine Sisters
Rating 7.0448 Users
Uchi no Aruji wa Youkai no Joushiki o Shiranai
Uchi no Aruji wa Youkai no Joushiki o Shiranai
NAN%
Tags
  • Oni Heroine
  • Butler Protagonist
  • Youkai
  • Succubus Heroine
  • Western-style Manor
Rating 7.1940 Users
Koi to H Shika Shiteinai!
Koi to H Shika Shiteinai!
NAN%
Tags
  • Pure Love Story
  • Short Common Route
  • Only Good Endings
  • Gyaru Heroine
  • Under the Same Roof
Rating 6.9221 Users
HajiLove -Making * Lovers- Mini Fandisk Vol.01 Sakurako & Yui Hen
HajiLove -Making * Lovers- Mini Fandisk Vol.01 Sakurako & Yui Hen
NAN%
Tags
  • Gyaru Heroine
  • Scenario Selection
  • Romance
  • Protagonist's Childhood Friend as a Heroine
  • Sex with Protagonist Only
Rating 7.1629 Users
Homemaid Sweet Pea
Homemaid Sweet Pea
NAN%
Tags
  • Share House
  • Office Lady Heroine
  • Single Buttjob
  • Adult Breast Feeding
  • Unlockable Routes
Rating 6.8429 Users
Kamisama no Shippo ~Etogami-sama tachi no Ongaeshi~
Kamisama no Shippo ~Etogami-sama tachi no Ongaeshi~
NAN%
Tags
  • Kemonomimi
  • Mousegirl Heroine
  • Usamimi Heroine
  • Cowgirl Heroine
  • Kemonomimi Heroine
Rating 7.0840 Users
Gibo to no Yuuwaku Doukyo Seikatsu ~Tsuma no Haha wa, Gibo to wa Yobenai Bijukujo Deshita~
Gibo to no Yuuwaku Doukyo Seikatsu ~Tsuma no Haha wa, Gibo to wa Yobenai Bijukujo Deshita~
NAN%
Tags
  • Wakame Sake
  • Heroine with Gigantic Breasts
  • Divorcee Heroine
  • Drunk Sex
  • Oyakodon Ending
Rating 6.8139 Users
Amamane 2
Amamane 2
NAN%
Tags
  • Baseball
  • Slice of Life
  • Only Younger Heroines
  • Short Sexual Scenes
  • Only a Single Heroine
Rating 6.7826 Users
Ayakashi Yuukaku ~Karakuri Jochuu no Mukashigatari~
Ayakashi Yuukaku ~Karakuri Jochuu no Mukashigatari~
NAN%
Tags
  • Living Doll Heroine
  • Heroine with Kimono
  • Kinetic Novel
  • Only a Single Heroine
  • Sexual Content
Rating 6.4920 Users
Iegami Nyoubou ~Nanashi Nekomata wa KamiTuber~
Iegami Nyoubou ~Nanashi Nekomata wa KamiTuber~
NAN%
Tags
  • Lazy Heroine
  • Catgirl Heroine
  • Tailjob
  • Armpit Sex
  • Heroine with Kimono
Rating 6.7921 Users
Linker Bell Academia ~Rakudai Majo to Himitsu no Gishiki~
Linker Bell Academia ~Rakudai Majo to Himitsu no Gishiki~
NAN%
Tags
  • Magic School
  • All-girls School
  • Protagonist from a Different World
  • Mage Heroine
  • Pure Love Story
Rating 6.9224 Users
Otouto-kun Chou Suki 99 Jikan Amaenasai!
Otouto-kun Chou Suki 99 Jikan Amaenasai!
42%
Tags
  • Only Blood-related Heroines
  • Nursing Handjob
  • Armpit Sex
  • Single Footjob
  • Heroine with Glasses
Rating 6.9020 Users
Onii-chan Chou Suki 99 Jikan Ecchi Shiyo!
Onii-chan Chou Suki 99 Jikan Ecchi Shiyo!
38%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Protagonist's Younger Sister as a Heroine
  • Brother/Sister Romance
  • Shimaidon with Twins Ending
  • Siscon Protagonist
Rating 7.1939 Users
Saimin Datsujo 3 ~Subete ga Boku no Jiyuu ni Naru Sekai e Youkoso~ Kurihara Shizuru Hen
Saimin Datsujo 3 ~Subete ga Boku no Jiyuu ni Naru Sekai e Youkoso~ Kurihara Shizuru Hen
35%
Tags
  • Shimaidon
  • Heroine in Relationship with Other(s)
  • Erotic Mind Control
  • Blood-related Sister/Sister Incest
  • Non-twin Heroine Sisters
Rating 7.0448 Users
Gyaru Shimai ~Harem Time ga Tomaranai!~
Gyaru Shimai ~Harem Time ga Tomaranai!~
34%
Tags
  • Skin Color Selection
  • Shimaidon
  • Gyaru Heroine
  • Non-twin Heroine Sisters
  • Twin Boobjob
Rating 6.4425 Users
Onee-chan no Kawari ni Nuite Agemasu ~Kanojo no Imouto wa, Shikatanai Kara to Zettai ni Yarasete Kureru~
Onee-chan no Kawari ni Nuite Agemasu ~Kanojo no Imouto wa, Shikatanai Kara to Zettai ni Yarasete Kureru~
33%
Tags
  • Nursing Handjob
  • Pregnancy Ending
  • Infidelity
  • Perverted Heroine
  • Tsundere Heroine
Rating 6.5725 Users
Oshino Ruka wa Iyashite Agetai
Oshino Ruka wa Iyashite Agetai
33%
Tags
  • Maid Heroine
  • Heroine with Wings
  • Harem Ending
  • Succubus Heroine
  • Twin Boobjob
Rating 7.2926 Users
Koi wa Mofumofu! Love Me Teddy
Koi wa Mofumofu! Love Me Teddy
33%
Tags
  • Shapeshifting
  • Yandere Heroine
  • Heroine with Tights
  • Otaku Heroine
  • Modern Tsundere Heroine
Rating 6.9622 Users
God Sisters
God Sisters
33%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Protagonist's Non-blood-related Sister as a Heroine
  • Ejaculation Forewarner
  • Background Moans
  • Heroine with a Fang
Rating 6.7337 Users
Densetsu no Yuusha to Saiyaku no Maou no Ren
Densetsu no Yuusha to Saiyaku no Maou no Ren'ai Jijou ~Yuusha wa Maou no Haha ni, Maou wa Yuusha no Mama ni Koi o Shita~
33%
Tags
  • Completion Status Indicator
  • Widow Heroine
  • Heroine with Children
  • Only Non-Virgin Heroines
  • Adult Breast Feeding
Rating 6.7320 Users
Koi to H Shika Shiteinai!
Koi to H Shika Shiteinai!
32%
Tags
  • Pure Love Story
  • Short Common Route
  • Only Good Endings
  • Gyaru Heroine
  • Under the Same Roof
Rating 6.9221 Users
Homemaid Sweet Pea
Homemaid Sweet Pea
32%
Tags
  • Share House
  • Office Lady Heroine
  • Single Buttjob
  • Adult Breast Feeding
  • Unlockable Routes
Rating 6.8429 Users
Gibo to no Yuuwaku Doukyo Seikatsu ~Tsuma no Haha wa, Gibo to wa Yobenai Bijukujo Deshita~
Gibo to no Yuuwaku Doukyo Seikatsu ~Tsuma no Haha wa, Gibo to wa Yobenai Bijukujo Deshita~
30%
Tags
  • Wakame Sake
  • Heroine with Gigantic Breasts
  • Divorcee Heroine
  • Drunk Sex
  • Oyakodon Ending
Rating 6.8139 Users
Ayakashi Yuukaku ~Karakuri Jochuu no Mukashigatari~
Ayakashi Yuukaku ~Karakuri Jochuu no Mukashigatari~
30%
Tags
  • Living Doll Heroine
  • Heroine with Kimono
  • Kinetic Novel
  • Only a Single Heroine
  • Sexual Content
Rating 6.4920 Users
Linker Bell Academia ~Rakudai Majo to Himitsu no Gishiki~
Linker Bell Academia ~Rakudai Majo to Himitsu no Gishiki~
30%
Tags
  • Magic School
  • All-girls School
  • Protagonist from a Different World
  • Mage Heroine
  • Pure Love Story
Rating 6.9224 Users
Teakamamire no Danshi
Teakamamire no Danshi
29%
Tags
  • Japanese Idols
  • Idol Protagonist
  • Voiced Thoughts
  • Idol Heroine
  • Love Hotel
Rating 6.5820 Users
Fudeoroshi Mama ~Afureru Hakudaku & Milk~
Fudeoroshi Mama ~Afureru Hakudaku & Milk~
29%
Tags
  • Obacon
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Only Older Heroines
  • Widow Heroine
Rating 5.9422 Users
Yuuri to Marin wa Iyashite Agetai
Yuuri to Marin wa Iyashite Agetai
29%
Tags
  • Succubus Heroine
  • Gyaru Heroine
  • Student Council President Heroine
  • Kuudere Heroine
  • Perverted Heroine
Rating 7.2230 Users
Aniyome Oyako
Aniyome Oyako
29%
Tags
  • Masturbation Involving Food
  • Romancing a Family
  • In-law Incest
  • Body Food
  • Protagonist's Sister-in-Law as a Heroine
Rating 6.3934 Users
Onaji Class no Idol-san. Around me is full by a celebrity.
Onaji Class no Idol-san. Around me is full by a celebrity.
28%
Tags
  • Japanese Idols
  • Singer Heroine
  • Idol Heroine
  • Donkan Protagonist
  • Single Footjob
Rating 6.9355 Users
Seisokei Futago Idol no Ura Jijou ~Ore Dake ga Shiru Midara na Futari~
Seisokei Futago Idol no Ura Jijou ~Ore Dake ga Shiru Midara na Futari~
28%
Tags
  • Shimaidon with Twins
  • Twin Sisters as Heroines
  • Idol Heroine
  • Unavoidable Harem Ending
  • Protagonist's Childhood Friend as a Heroine
Rating 7.0834 Users
Ane Tsumami ~Miwaku no Osananajimi Onee-san Hitozuma to no Mecha Ero Dousei LoveLife~
Ane Tsumami ~Miwaku no Osananajimi Onee-san Hitozuma to no Mecha Ero Dousei LoveLife~
27%
Tags
  • Blood-related Aunt/Nephew Incest
  • Protagonist's Aunt as a Heroine
  • Sex on a Beach
  • Highly Animated Sprites
  • Lip Sync
Rating 7.4946 Users
Ane Tsumami 2 ~Ecchi na Onee-san Hitozuma ni Tappuri Amaeru Mecha Shiko Love Life~
Ane Tsumami 2 ~Ecchi na Onee-san Hitozuma ni Tappuri Amaeru Mecha Shiko Love Life~
27%
Tags
  • Sex on a Beach
  • Highly Animated Sprites
  • Lip Sync
  • Only Non-Virgin Heroines
  • Condoms
Rating 7.1126 Users
Love Cafe ~Doutei na Ore demo, Kyonyuu Onna Senpai to Dousei Dekirutte Maji Desu ka?
Love Cafe ~Doutei na Ore demo, Kyonyuu Onna Senpai to Dousei Dekirutte Maji Desu ka?
27%
Tags
  • Cafe
  • Under the Same Roof
  • Heroine with Huge Breasts
  • Adult Heroine
  • Heroine with Big Breasts
Rating 7.0320 Users
shin-neko ~Saikai Shita Imouto to no Arata na Kankei~
shin-neko ~Saikai Shita Imouto to no Arata na Kankei~
27%
Tags
  • Straight Lolicon
  • Only Blood-related Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Only Younger Heroines
  • Only Loli Heroines
Rating 6.5225 Users

Ore to Nakayoshi Shimai no Inma na Himitsu ~Imouto ni Shinu hodo Kiraware Nagara Ane to Sex Suru Kimyou Doukyo Seikatsu~ 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 (32 total)

NameScoreImportanceWeight
Blood-related Sister/Sister Incest2.002.124.25
Completion Status Indicator2.002.124.24
Tribadism on Penis2.001.853.70
Sex in a Vehicle2.001.783.56
Threesome Ending2.001.723.45
Naked Heroine with Apron2.001.653.30
Condoms2.001.643.28
Sexual Blindfold2.001.513.03
Spoons2.001.482.97
Background Moans2.001.432.85
Vaginal Masturbation2.001.392.78
Vaginal Fingering2.001.282.56
Twin Blowjob2.001.282.55
Sounds of Copulation2.001.272.55
Single Handjob2.001.272.54
Lesbian Sex2.001.142.27
Sex in Public Places2.001.072.15
Sixty-nine2.001.062.12
Sitting Sex2.001.052.10
Naked Sprites2.001.052.09
Adult Protagonist2.001.042.08
Single Blowjob2.001.001.99
Gokkun1.001.901.90
Missionary Position2.000.931.86
Cunnilingus2.000.921.85
Group Sex of One Male and Several Females2.000.901.80
Heroine with Big Breasts2.000.891.77
Cowgirl2.000.831.65
Doggy Style2.000.791.58
Multiple Endings2.000.661.32
Sexual Content2.000.611.22
Male Protagonist2.000.300.60

Traits (56 total)

NameCharactersImportanceWeight
Non-blood-related Incest Engages in (Sexual)32.173.01
Step Sister Role22.442.68
Voyeurism Engages in (Sexual)22.182.40
Polyamory Engages in22.182.40
Tribadism Engages in (Sexual)22.122.33
Domestic Partner Role22.092.30
Tribadism on Penis Engages in (Sexual)22.082.29
Step Brother Role12.731.89
Turtleneck Tank Top Clothes12.731.89
Misandrist Personality12.691.87
Middle Sister Role12.511.74
Full Sister Role21.571.73
Sex in Front of an Audience Engages in (Sexual)21.511.66
Violet Hair31.191.64
Penis Growth Subject of12.341.62
Incest Engages in (Sexual)21.471.62
Intercrural Sex Subject of (Sexual)12.301.59
Balls Sucking Engages in (Sexual)12.271.58
Seduction Engages in12.201.53
Lesbian Sex Engages in (Sexual)21.381.52
Condom Sex Engages in (Sexual)12.151.49
Sex in Public Places Engages in (Sexual)21.261.39
Group Sex of One Male and Several Females Engages in (Sexual)21.201.31
Naked Apron Clothes11.871.29
Mature Personality11.841.27
Hidden Eyes11.811.25
Eye Covering Hair11.801.25
Cheerful Personality11.781.24
Vaginal Masturbation Engages in (Sexual)11.781.23
Reserved Personality11.731.20
Older Brother Role11.721.20
Group Sex of One Female and Several Males Engages in (Sexual)11.721.19
Doggy Style Engages in (Sexual)11.701.18
Spoons Subject of (Sexual)11.671.16
Vaginal Fingering Engages in (Sexual)11.621.13
University Student Role11.621.12
Lactation Engages in11.591.10
Ore Personality11.591.10
Cowgirl Subject of (Sexual)20.951.05
Younger Sister Role11.441.00
Blunt Bangs Hair11.400.97
Bathroom Sex Engages in (Sexual)11.400.97
Waist Length+ Hair20.800.88
Dress Clothes11.240.86
Blowjob Engages in (Sexual)20.760.83
Big Breasts Body11.190.83
Handjob Engages in (Sexual)11.160.80
Twin Tails Hair11.120.78
Vaginal Fingering Subject of (Sexual)11.080.75
Miniskirt Clothes11.070.74
Sitting Sex Subject of (Sexual)11.050.73
Straight Hair10.960.66
Doggy Style Subject of (Sexual)10.920.64
Virgin Sex Engages in (Sexual)10.840.58
Slim Body10.570.40
Pale Body10.370.26