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Summary

The protagonist is born into a distinguished family with 4 older sisters. When they are young, the siblings are always together and even promise to get married. However, as they grow older, the distance between them also widens. Then one day, their grandfather suddenly tells the sisters that they must become brides within the year. However, they are forbidden to associate with the males and ordered to protect their virginities until then. But the sisters are still growing girls and therefore, very interested in sexual matters. They want to have at least a passionate experience first before marrying. Thus, they turn to the protagonist and pretty much force him to cooperate. [Translated from Official Site]

Ore to Imouto no Kounai Play 2 ~Imouto wa Ore ga Otosu~
Ore to Imouto no Kounai Play 2 ~Imouto wa Ore ga Otosu~
NAN%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Brother/Sister Romance
  • Consensual Phone Sex
  • Completely Avoidable Netorare
  • Blood-related Brother/Sister Incest
Rating 6.6023 Users
Otouto-kun Chou Suki 99 Jikan Amaenasai!
Otouto-kun Chou Suki 99 Jikan Amaenasai!
NAN%
Tags
  • Only Blood-related Heroines
  • Nursing Handjob
  • Armpit Sex
  • Single Footjob
  • Heroine with Glasses
Rating 6.9020 Users
Hime-sama Love Life!
Hime-sama Love Life!
NAN%
Tags
  • Boke Heroine
  • Family Life Comedy
  • Princess Heroine
  • Half-orphan Protagonist
  • Student Club Member Protagonist
Rating 7.0843 Users
Maternity Monsters! ~Jinrou Kaichou to Yuisho Tadashiki Kozukuri Sengen!~
Maternity Monsters! ~Jinrou Kaichou to Yuisho Tadashiki Kozukuri Sengen!~
NAN%
Tags
  • Heroine with Baby Complex
  • Sex with Monster Girls
  • Student Council President Heroine
  • Protagonist in Relationship
  • Monster Girl Heroine
Rating 6.6321 Users
Harem Game 2 ~Futsuu ja Nai Shujinkou ga Harem o Kizuku Fantasy (?)~
Harem Game 2 ~Futsuu ja Nai Shujinkou ga Harem o Kizuku Fantasy (?)~
NAN%
Tags
  • Invisibility
  • Heroine from a Different World
  • Model Heroine
  • Twincest
  • Oppai Loli Heroine
Rating 6.5642 Users
Hani Tsuma
Hani Tsuma
NAN%
Tags
  • Protagonist's Employee as a Heroine
  • Dormitory Manager Heroine
  • Protagonist's Fiancee as a Heroine
  • Cousin Romance
  • Student-Teacher Romance
Rating 7.6950 Users
Hakui no Tenshi wa Osewa-zuki! ~Love Love ♡ Ecchi na Nyuuin Seikatsu~
Hakui no Tenshi wa Osewa-zuki! ~Love Love ♡ Ecchi na Nyuuin Seikatsu~
NAN%
Tags
  • Hospital
  • Talking Animal
  • Physical Problems
  • Nurse Heroine
  • Clumsy Heroine
Rating 7.6263 Users
Emuria! ~Ore ga Do M ni Natta no wa Dou Kangaete mo Omaera ga Warui~
Emuria! ~Ore ga Do M ni Natta no wa Dou Kangaete mo Omaera ga Warui~
NAN%
Tags
  • Masochist Protagonist
  • Single Legjob
  • Footjob
  • Haraguro Heroine
  • Non-blood-related Brother/Sister Incest
Rating 6.7543 Users
Iinari Aneiro ~Onee-chan sae Ireba Ii!~
Iinari Aneiro ~Onee-chan sae Ireba Ii!~
NAN%
Tags
  • Divorcee Heroine
  • Protagonist's Sister-in-Law as a Heroine
  • Heroine with Inverted Nipples
  • Episodic Story
  • Dildos
Rating 6.6626 Users
Ojou-sama wa Katai no ga Osuki! ~Shinsei Naru Joshi Ryou Nikki~
Ojou-sama wa Katai no ga Osuki! ~Shinsei Naru Joshi Ryou Nikki~
NAN%
Tags
  • Cook Protagonist
  • Gymnastic Heroine
  • Impregnation Choice
  • Hotblooded Protagonist
  • Artist Heroine
Rating 6.9939 Users
Ore ni Kanojo ga Dekite kara Imouto-tachi no Yousu ga Okashii!?
Ore ni Kanojo ga Dekite kara Imouto-tachi no Yousu ga Okashii!?
NAN%
Tags
  • Reverse Netorare
  • Protagonist's Sister as a Heroine
  • Only Protagonist's Sisters as Heroine(s)
  • Only Younger Heroines
  • Brother/Sister Incest
Rating 6.8134 Users
Nakayoshi Kazoku Nara Kiss mo Nakadashi mo Touzen Da yo ne!
Nakayoshi Kazoku Nara Kiss mo Nakadashi mo Touzen Da yo ne!
NAN%
Tags
  • Protagonist's Twin as a Heroine
  • Twincest
  • Protagonist's Sister as a Heroine
  • Siscon Protagonist
  • Kinetic Novel
Rating 6.6622 Users
Idol Pafupafu Management -Geinou Musume o H ni Bust UP Producer-
Idol Pafupafu Management -Geinou Musume o H ni Bust UP Producer-
NAN%
Tags
  • Japanese Idols
  • Dying Protagonist
  • Breast Expansion
  • Leader Heroine
  • Chuunibyou Heroine
Rating 7.1346 Users
Sukechatte!! ~Kyuushi ni Isshou o Ete Noumitsu Second Life~
Sukechatte!! ~Kyuushi ni Isshou o Ete Noumitsu Second Life~
NAN%
Tags
  • Protagonist with Superpowered Side
  • Invisibility
  • High Amount of Special Effects
  • Shapeshifting
  • Defloration During Common Route
Rating 6.6022 Users
Yuutai☆Ridatsu!! Dokodemo Dare demo Yari Houdai!!
Yuutai☆Ridatsu!! Dokodemo Dare demo Yari Houdai!!
NAN%
Tags
  • Student Club President Protagonist
  • Chikan Protagonist
  • Invisibility
  • Rapist Protagonist
  • Ghost Protagonist
Rating 6.4429 Users
Fudeoroshi Mama ~Afureru Hakudaku & Milk~
Fudeoroshi Mama ~Afureru Hakudaku & Milk~
NAN%
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
Peekaboo! ~Kanojo ga Ecchi na Mizugi ni Kigaetara!?~
Peekaboo! ~Kanojo ga Ecchi na Mizugi ni Kigaetara!?~
NAN%
Tags
  • Non-penetrative Sex
  • Shy Heroine
  • Twin Boobjob
  • Heroine with Swimsuits
  • Production of Pornography (Amateur)
Rating 6.8535 Users
Mazomai ~M na Imouto no Ecchi na Onedari~
Mazomai ~M na Imouto no Ecchi na Onedari~
NAN%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Harem Ending with Theme
  • Homemaker Protagonist
  • Naizuri
  • Narrating Others' Thoughts
Rating 6.9135 Users
Onee-chan to Shota-kun to. ~Naka o Yoku Suru H no Kankei~
Onee-chan to Shota-kun to. ~Naka o Yoku Suru H no Kankei~
NAN%
Tags
  • Protagonist's Blood-related Sister as a Heroine
  • Only Older Heroines
  • Shota Protagonist
  • Brocon Heroine
  • Shotacon
Rating 6.6735 Users
Ane ga Boku no Seieki Tsuki Pantsu o Haku Wake
Ane ga Boku no Seieki Tsuki Pantsu o Haku Wake
NAN%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Clumsy Heroine
  • Perverted Protagonist
  • Siscon Protagonist
  • Cosplay
Rating 6.7021 Users
Densha Ecchi Paradise
Densha Ecchi Paradise
NAN%
Tags
  • Trains
  • Molestation on Public Transport
  • Chikan Protagonist
  • Threesome Ending
  • Unavoidable Harem Ending
Rating 5.9336 Users
Goshujin-sama, Maid Fuku o Nugasanaide.
Goshujin-sama, Maid Fuku o Nugasanaide.
NAN%
Tags
  • Protagonist's Fiancee as a Heroine
  • Heroine with Garter Belt
  • Wealthy Protagonist
  • Stockings
  • Maid Heroine
Rating 7.1248 Users
Shimai to Now.
Shimai to Now.
NAN%
Tags
  • Shimaidon Ending
  • Only Protagonist's Sisters as Heroine(s)
  • Sexual Devices
  • Sex Involving Food
  • BDSM
Rating 7.5452 Users
Harem Mura ~Dousotsu Fukahi! Kodane Teikyou wa Mura no Okite Desu!!~
Harem Mura ~Dousotsu Fukahi! Kodane Teikyou wa Mura no Okite Desu!!~
NAN%
Tags
  • Birthrate Decline
  • Polygamy
  • Unavoidable Harem Ending
  • Polyamory
  • Sexual Slavery (Consensual)
Rating 6.7257 Users
Itazura ~Boku Dake no Zettai Ryouiki~
Itazura ~Boku Dake no Zettai Ryouiki~
44%
Tags
  • Chikan Heroine
  • Hotel
  • Trains
  • Voiced Thoughts
  • Pregnancy Good Ending
Rating 6.1820 Users
Tokonatsu Shimai Sand
Tokonatsu Shimai Sand
43%
Tags
  • Stranded
  • Protagonist's Full Sister as a Heroine
  • Only Protagonist's Sisters as Heroine(s)
  • Androphobic Heroine
  • Protagonist's Twin as a Heroine
Rating 6.9046 Users
Sukechatte!! ~Kyuushi ni Isshou o Ete Noumitsu Second Life~
Sukechatte!! ~Kyuushi ni Isshou o Ete Noumitsu Second Life~
43%
Tags
  • Protagonist with Superpowered Side
  • Invisibility
  • High Amount of Special Effects
  • Shapeshifting
  • Defloration During Common Route
Rating 6.6022 Users
Idol Pafupafu Management -Geinou Musume o H ni Bust UP Producer-
Idol Pafupafu Management -Geinou Musume o H ni Bust UP Producer-
42%
Tags
  • Japanese Idols
  • Dying Protagonist
  • Breast Expansion
  • Leader Heroine
  • Chuunibyou Heroine
Rating 7.1346 Users
Nakayoshi Kazoku Nara Kiss mo Nakadashi mo Touzen Da yo ne!
Nakayoshi Kazoku Nara Kiss mo Nakadashi mo Touzen Da yo ne!
39%
Tags
  • Protagonist's Twin as a Heroine
  • Twincest
  • Protagonist's Sister as a Heroine
  • Siscon Protagonist
  • Kinetic Novel
Rating 6.6622 Users
Ojou-sama wa Katai no ga Osuki! ~Shinsei Naru Joshi Ryou Nikki~
Ojou-sama wa Katai no ga Osuki! ~Shinsei Naru Joshi Ryou Nikki~
39%
Tags
  • Cook Protagonist
  • Gymnastic Heroine
  • Impregnation Choice
  • Hotblooded Protagonist
  • Artist Heroine
Rating 6.9939 Users
Ore ni Kanojo ga Dekite kara Imouto-tachi no Yousu ga Okashii!?
Ore ni Kanojo ga Dekite kara Imouto-tachi no Yousu ga Okashii!?
39%
Tags
  • Reverse Netorare
  • Protagonist's Sister as a Heroine
  • Only Protagonist's Sisters as Heroine(s)
  • Only Younger Heroines
  • Brother/Sister Incest
Rating 6.8134 Users
Emuria! ~Ore ga Do M ni Natta no wa Dou Kangaete mo Omaera ga Warui~
Emuria! ~Ore ga Do M ni Natta no wa Dou Kangaete mo Omaera ga Warui~
36%
Tags
  • Masochist Protagonist
  • Single Legjob
  • Footjob
  • Haraguro Heroine
  • Non-blood-related Brother/Sister Incest
Rating 6.7543 Users
Iinari Aneiro ~Onee-chan sae Ireba Ii!~
Iinari Aneiro ~Onee-chan sae Ireba Ii!~
35%
Tags
  • Divorcee Heroine
  • Protagonist's Sister-in-Law as a Heroine
  • Heroine with Inverted Nipples
  • Episodic Story
  • Dildos
Rating 6.6626 Users
Fudeoroshi Mama ~Afureru Hakudaku & Milk~
Fudeoroshi Mama ~Afureru Hakudaku & Milk~
34%
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
Mazomai ~M na Imouto no Ecchi na Onedari~
Mazomai ~M na Imouto no Ecchi na Onedari~
34%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Harem Ending with Theme
  • Homemaker Protagonist
  • Naizuri
  • Narrating Others' Thoughts
Rating 6.9135 Users
Ane ga Boku no Seieki Tsuki Pantsu o Haku Wake
Ane ga Boku no Seieki Tsuki Pantsu o Haku Wake
33%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Clumsy Heroine
  • Perverted Protagonist
  • Siscon Protagonist
  • Cosplay
Rating 6.7021 Users
Goshujin-sama, Maid Fuku o Nugasanaide.
Goshujin-sama, Maid Fuku o Nugasanaide.
33%
Tags
  • Protagonist's Fiancee as a Heroine
  • Heroine with Garter Belt
  • Wealthy Protagonist
  • Stockings
  • Maid Heroine
Rating 7.1248 Users
Harem Mura ~Dousotsu Fukahi! Kodane Teikyou wa Mura no Okite Desu!!~
Harem Mura ~Dousotsu Fukahi! Kodane Teikyou wa Mura no Okite Desu!!~
33%
Tags
  • Birthrate Decline
  • Polygamy
  • Unavoidable Harem Ending
  • Polyamory
  • Sexual Slavery (Consensual)
Rating 6.7257 Users
Nee-chan, Gomen Dashichatta! ~Onee-chan wa Boku Sen
Nee-chan, Gomen Dashichatta! ~Onee-chan wa Boku Sen'you~
33%
Tags
  • Forbidden Love
  • Incest Romance
  • Dirty Talk
  • Non-twin Heroine Sisters
  • Siscon Protagonist
Rating 7.0578 Users
Orihime ~Gokujou no Mirai wa Ore no Mono~
Orihime ~Gokujou no Mirai wa Ore no Mono~
33%
Tags
  • Businesswoman Heroine
  • Japanese Idols
  • Wealthy Protagonist
  • Strangulation Sex
  • Ejaculation Forewarner
Rating 6.8932 Users
Koakuma Hatsuiku Chu~!
Koakuma Hatsuiku Chu~!
33%
Tags
  • Loli Support Character
  • Onahole
  • Sadist Heroine
  • Shimaidon Ending
  • Pantyjob
Rating 7.1845 Users
Pafu Pafu Sentou Monogatari! ~Machi no Ofuroya-san, Hanjou no Hiketsu wa H na Massage~
Pafu Pafu Sentou Monogatari! ~Machi no Ofuroya-san, Hanjou no Hiketsu wa H na Massage~
32%
Tags
  • Defloration During Common Route
  • Prostitution
  • Romancing a Family
  • Single Buttjob
  • Oyakodon Ending
Rating 6.4727 Users
Musuko ga Osewa ni Narimashite ~Miboujin Kanrinin-san to Kaa-san to~
Musuko ga Osewa ni Narimashite ~Miboujin Kanrinin-san to Kaa-san to~
32%
Tags
  • Mother/Son Incest
  • Only Adult Heroines
  • Masochist Heroine
  • Clothed Male Naked Female
  • Pregnancy Ending
Rating 6.5736 Users
Chu Shite Agechau ~Oshikake Onee-san no Seikou Chiryou~
Chu Shite Agechau ~Oshikake Onee-san no Seikou Chiryou~
32%
Tags
  • Illness
  • Medical Doctor Heroine
  • Triple Blowjob
  • Group Sex of Several Females
  • Long Sexual Scenes
Rating 6.8337 Users
Pen Pen Penalty - Hakoiri Musume-tachi o H ni Oshioki!!
Pen Pen Penalty - Hakoiri Musume-tachi o H ni Oshioki!!
32%
Tags
  • Food Gokkun
  • Cum on Food
  • Heroine with Shorts
  • Mirror Sex
  • Big Ass Heroine
Rating 7.3748 Users
Nee-chan, Mou Dechau yo! ~In Ane wa Ore no Ai Gangu~
Nee-chan, Mou Dechau yo! ~In Ane wa Ore no Ai Gangu~
32%
Tags
  • Protagonist's Older Sister as a Heroine
  • Protagonist's Full Sister as a Heroine
  • Inbreeding
  • Pubic Hair Option
  • Only Older Heroines
Rating 6.4246 Users
Koi mo H mo Obenkyou mo, Omakase! Oneechan-bu
Koi mo H mo Obenkyou mo, Omakase! Oneechan-bu
31%
Tags
  • Ejaculation Forewarner
  • Harem Ending with Theme
  • Brother/Sister Romance
  • Blood-related Brother/Sister Incest
  • Sadist Heroine
Rating 6.8738 Users
Haji Kano ~Kimi ga Iru Heya~
Haji Kano ~Kimi ga Iru Heya~
31%
Tags
  • Protagonist's Boss as a Heroine
  • Office Lady Heroine
  • Only Virgin Heroines
  • Tsundere Heroine
  • Adult Heroine
Rating 6.9731 Users

Kinkyuu Sengen - Onee-chan-tachi wa Shojo o Sotsugyou Shimasu!! has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
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Tags (18 total)

NameScoreImportanceWeight
Only Older Heroines2.502.135.32
Only Protagonist's Sisters as Heroine(s)2.502.004.99
Blood-related Brother/Sister Incest3.001.484.44
Single Buttjob2.001.993.97
Few Choices2.501.343.34
Twin Boobjob2.001.673.34
Heroine with Zettai Ryouiki2.001.372.75
Only Virgin Heroines2.001.072.14
Sixty-nine2.001.062.12
Sitting Sex2.001.052.10
Standing Sex2.001.052.09
Group Sex of One Male and Several Females2.000.901.80
Doggy Style2.000.791.58
Multiple Endings2.000.661.32
Nukige1.500.640.96
Male Protagonist2.500.300.75
ADV2.000.140.29
Sexual Content0.330.610.20

Traits (83 total)

NameCharactersImportanceWeight
Incest Engages in (Sexual)51.472.64
Group Sex Engages in (Sexual)51.442.58
Older Sister Role41.552.50
Big Breast Sizes Body41.472.36
Spoons Subject of (Sexual)31.672.31
Tominagi Subject of (Sexual)41.362.18
French Kiss Engages in (Sexual)31.532.12
Masturbation in front of an Audience Engages in (Sexual)21.922.11
Multiple Tails Hair13.012.09
Ribbon Tie Clothes41.242.00
Pleated Skirt Clothes31.421.96
Buttjob Subject of (Sexual)12.811.95
Twin Boobjob Engages in (Sexual)21.761.93
Ribbon Hair Tie Clothes41.181.90
Twin Boobjob Subject of (Sexual)12.671.85
Missionary Subject of (Sexual)41.111.79
Piledriver Engages in (Sexual)12.581.79
Moody Personality12.581.79
Sixty-nine Engages in (Sexual)31.251.73
Wake-up Sex Subject of (Sexual)12.501.73
Sitting Sex Subject of (Sexual)41.051.70
Buttjob Engages in (Sexual)12.411.67
Standing Sex Subject of (Sexual)31.181.63
Reverse Cowgirl Engages in (Sexual)12.251.56
Short Bangs Hair12.241.55
Spoons Engages in (Sexual)12.241.55
Cowgirl Subject of (Sexual)40.951.53
Seventh Posture Engages in (Sexual)12.191.52
Doggy Style Subject of (Sexual)40.921.48
Tominagi Engages in (Sexual)12.141.48
Sex on Toilet Engages in (Sexual)12.071.43
Butterfly Engages in (Sexual)12.051.42
Virgin Sex Engages in (Sexual)40.841.35
Piledriver Subject of (Sexual)11.951.35
Younger Brother Role11.901.32
Quickie Fix Engages in (Sexual)11.901.31
Group Sex of One Male and Several Females Engages in (Sexual)21.201.31
Standing Sex Engages in (Sexual)11.891.31
Boobjob Subject of (Sexual)11.871.30
Butterfly Subject of (Sexual)21.171.29
Sitting Sex Engages in (Sexual)11.841.27
Hidden Eyes11.811.25
Anal Sex Engages in (Sexual)11.771.23
Handjob Subject of (Sexual)11.761.22
Missionary Engages in (Sexual)11.751.21
Side Tail Hair11.741.21
Cowgirl Engages in (Sexual)11.721.20
Vaginal Fingering Subject of (Sexual)21.081.18
Doggy Style Engages in (Sexual)11.701.18
Boobjob Engages in (Sexual)21.061.17
Carefree Personality11.671.16
Relaxed Personality11.651.14
Reverse Cowgirl Subject of (Sexual)11.641.14
Vaginal Fingering Engages in (Sexual)11.621.13
Sex in Classroom Engages in (Sexual)11.611.12
Nipple Teasing Subject of (Sexual)11.601.11
Blowjob Subject of (Sexual)11.531.06
Blowjob Engages in (Sexual)30.761.05
Orange Hair11.511.04
Maid's Dress Clothes11.511.04
Long Hair30.751.04
Smart Personality11.471.02
School Uniform Clothes30.731.02
Seventh Posture Subject of (Sexual)11.451.01
Teen Body40.610.98
Masturbation Engages in (Sexual)11.370.95
Slim Body40.570.92
Pink Hair11.320.92
Red Hair11.320.92
Blue Eyes20.800.88
Anal Sex Subject of (Sexual)11.190.82
Handjob Engages in (Sexual)11.160.80
Twin Tails Hair11.120.78
Quickie Fix Subject of (Sexual)11.080.75
Kind Personality11.040.72
Violet Eyes11.040.72
Amber Eyes11.020.71
Blond Hair10.880.61
Pale Body40.370.60
Waist Length+ Hair10.800.55
Brown Hair10.680.47
Short Hair10.610.42
10.000.00