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Summary

Big brother lives a harem life of babymaking sweet *luurrrrv* with four adoring imoutos! Welcome to the countryside, where a protagonist returns to the house he grew up in to find his little sisters have done some growing up of their own. Which one will become oniichan's bride? They're all competing for your affection and throw themselves at you, wombs fertile, in a soft girlie attack. Kick back and enjoy the dewey sweet slow life with your harem of, at home, around town and at the local festival. [From DLSite English]

Musuko ga Osewa ni Narimashite ~Miboujin Kanrinin-san to Kaa-san to~
Musuko ga Osewa ni Narimashite ~Miboujin Kanrinin-san to Kaa-san to~
NAN%
Tags
  • Mother/Son Incest
  • Only Adult Heroines
  • Masochist Heroine
  • Clothed Male Naked Female
  • Pregnancy Ending
Rating 6.3633 Users
Oshirikko Venus 2
Oshirikko Venus 2
NAN%
Tags
  • Non-penetrative Sex
  • Big Ass Heroine
  • Perverted Protagonist
  • Twin Footjob
  • Sex on a Roof
Rating 7.2332 Users
Yankee Kanojo to Kozukuri Gakuen Life ~Suki to ka Iuna! Buttobasu zo! Omae no Aka-chan Hoshikunacchimau Darou ga…~
Yankee Kanojo to Kozukuri Gakuen Life ~Suki to ka Iuna! Buttobasu zo! Omae no Aka-chan Hoshikunacchimau Darou ga…~
NAN%
Tags
  • Delinquent Heroine
  • Wedding
  • Modern Tsundere Heroine
  • Heroine with Swimsuits
  • Internal Exhibition of Sex
Rating 6.1724 Users
Miinasan, Kakkee Desu! -Love Icha Doukyo Seikatsu no Susume-
Miinasan, Kakkee Desu! -Love Icha Doukyo Seikatsu no Susume-
NAN%
Tags
  • Reverse Netorare
  • Defloration During Common Route
  • Protagonist's Girlfriend as a Heroine
  • Betrayal
  • Infidelity
Rating 6.8744 Users
Seikatsu Shidouin ~Kimo-o ga Funin ni Nayamu Pure na Wakazuma ni Tetori Ashitori Akume Lesson! Love Love Netori Tanezuke de Risou no Yome ni!~
Seikatsu Shidouin ~Kimo-o ga Funin ni Nayamu Pure na Wakazuma ni Tetori Ashitori Akume Lesson! Love Love Netori Tanezuke de Risou no Yome ni!~
NAN%
Tags
  • Consensual Erotic Humiliation
  • Ugly Protagonist
  • Hotel
  • Vaginal Gaping
  • Peace Sign Ahegao
Rating 6.1422 Users
Imouto Netori ~Mi mo Kokoro mo Onii-chan no Mono~
Imouto Netori ~Mi mo Kokoro mo Onii-chan no Mono~
NAN%
Tags
  • Unavoidable Heroine Rape by the Protagonist
  • Completely Unavoidable Heroine Rape
  • Sexual Slavery (Choukyou Variation)
  • Siscon Protagonist
  • Rape Involving Drugs
Rating 6.06167 Users
Aimai Ren
Aimai Ren'ai
NAN%
Tags
  • Non-twin Heroine Sisters
  • Twin Buttjob
  • Mentor Support Character
  • Orphan Heroine
  • Pubic Hair Option
Rating 6.8953 Users
Love Pote Gakuen ~Anata no Kodane de Haramitai~
Love Pote Gakuen ~Anata no Kodane de Haramitai~
NAN%
Tags
  • Birthrate Decline
  • Shimaidon
  • Oyakodon
  • Inbreeding
  • Protagonist's Ex as a Heroine
Rating 6.3846 Users
Shiro Koki Kuro Koki ~Kuro Tights ni Semerareru ga Sore Gurai de wa Shiro Knee Socks o Akiramenai Ore~
Shiro Koki Kuro Koki ~Kuro Tights ni Semerareru ga Sore Gurai de wa Shiro Knee Socks o Akiramenai Ore~
NAN%
Tags
  • Foreskin Play
  • Twin Footjob
  • Kneepit Sex
  • Pantyjob
  • Censored Text
Rating 6.4427 Users
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 6.4836 Users
Kanojo wa Ecchi de Midara na Hentai
Kanojo wa Ecchi de Midara na Hentai
NAN%
Tags
  • Student Council Member Heroine
  • Student Council President Protagonist
  • Arranged Marriage
  • Protagonist's Fiancee as a Heroine
  • Popular Protagonist
Rating 7.0640 Users
Nise Bitch ~Riajuu Butte mo Pure de Ichizu na Osananajimi ni H na Kozukuri Lesson~
Nise Bitch ~Riajuu Butte mo Pure de Ichizu na Osananajimi ni H na Kozukuri Lesson~
NAN%
Tags
  • Cosplay
  • Footjob
  • Nympho Heroine
  • Spoons
  • Impregnation
Rating 6.3330 Users
Aneimo Neo ~Second Sisters~
Aneimo Neo ~Second Sisters~
NAN%
Tags
  • Protagonist's Aunt as a Heroine
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Romancing a Family
  • Oneesan-type Heroine
Rating 7.1137 Users
AI Love: Koisuru Otome wa Kikaijikake
AI Love: Koisuru Otome wa Kikaijikake
NAN%
Tags
  • Technician Protagonist
  • Robot Heroine
  • Scientist Protagonist
  • AI Heroine
  • Under the Same Roof
Rating 7.0541 Users
Boku no Daisuki na Oba-san
Boku no Daisuki na Oba-san
NAN%
Tags
  • Incest Romance
  • May-December Romance
  • Blood-related Aunt/Nephew Incest
  • Protagonist's Aunt as a Heroine
  • Protagonist with Phimosis
Rating 6.9161 Users
Ane Yome Concerto
Ane Yome Concerto
NAN%
Tags
  • Ear-Cleaning
  • Glasses Option
  • Ejaculation Forewarner
  • Mirror Sex
  • Protagonist's Wife as a Heroine
Rating 7.5053 Users
Naisho no Naisho!
Naisho no Naisho!
NAN%
Tags
  • Shimaidon with Twins Ending
  • Only Protagonist's Sisters as Heroine(s)
  • Half-Japanese Heroine
  • Only Younger Heroines
  • Skip to Choices
Rating 7.4977 Users
Binary Pot
Binary Pot
NAN%
Tags
  • Waitress Heroine
  • Fictional World
  • Ponytail Heroine
  • Twin Tail Heroine
  • Branching Plot
Rating 6.0723 Users
Tomo Haha Gachi Haramase!~Dekapai Bosei Mama o Wakai Sex Zuke de Ore no Mesu ni Shite Yatta!~
Tomo Haha Gachi Haramase!~Dekapai Bosei Mama o Wakai Sex Zuke de Ore no Mesu ni Shite Yatta!~
NAN%
Tags
  • Heroine with Children
  • Heroine with Crotchless Clothing
  • Clothed Male Naked Female
  • Love Hotel
  • Only Non-Virgin Heroines
Rating 6.4438 Users
Jukujo Hokenshitsu ~Midara na Kyonyuu ni Sasowarete~
Jukujo Hokenshitsu ~Midara na Kyonyuu ni Sasowarete~
NAN%
Tags
  • School Nurse Heroine
  • Only Older Heroines
  • Heroine with Children
  • Stockings
  • Only Adult Heroines
Rating 6.3624 Users
Zettai Seifuku ☆ Gakuen Kessha Panyanyanda!!
Zettai Seifuku ☆ Gakuen Kessha Panyanyanda!!
NAN%
Tags
  • Single Legjob
  • Lazy Heroine
  • Consensual Sex Involving Slime Monsters
  • Principal Heroine
  • Protagonist's Rival as a Heroine
Rating 6.7037 Users
Lovecha ~Tsumasakidachi de, Hitomi o Tojite~
Lovecha ~Tsumasakidachi de, Hitomi o Tojite~
NAN%
Tags
  • Elementary School
  • Elementary School Student Heroine
  • Student-Teacher Romance
  • Armpit Licking
  • Hetare Protagonist
Rating 6.2025 Users
Saimin Z
Saimin Z
NAN%
Tags
  • Rimming Handjob
  • Erotic Mind Control
  • Mind Control
  • Pantyjob
  • School
Rating 6.9827 Users
Hitomi no Rakuin 4 ~Etsujoku no Soushin Kaizou~
Hitomi no Rakuin 4 ~Etsujoku no Soushin Kaizou~
NAN%
Tags
  • Twin Buttjob
  • Glory Hole Sex
  • Mind Control
  • Background Moans
  • Armpit Sex
Rating 6.4927 Users
Hitozuma Dorei Kissa 2
Hitozuma Dorei Kissa 2
24%
Tags
  • Rape with Blackmail
  • Blackmail
  • Waitress Heroine
  • Lactation During Sex
  • Group Sex of Multiple Females and Males
Rating 5.7932 Users
Itazura ~Boku Dake no Zettai Ryouiki~
Itazura ~Boku Dake no Zettai Ryouiki~
24%
Tags
  • Chikan Heroine
  • Hotel
  • Trains
  • Voiced Thoughts
  • Pregnancy Good Ending
Rating 6.1720 Users
AI Love: Koisuru Otome wa Kikaijikake
AI Love: Koisuru Otome wa Kikaijikake
23%
Tags
  • Technician Protagonist
  • Robot Heroine
  • Scientist Protagonist
  • AI Heroine
  • Under the Same Roof
Rating 7.0541 Users
Aneimo Neo ~Second Sisters~
Aneimo Neo ~Second Sisters~
23%
Tags
  • Protagonist's Aunt as a Heroine
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Romancing a Family
  • Oneesan-type Heroine
Rating 7.1137 Users
Nise Bitch ~Riajuu Butte mo Pure de Ichizu na Osananajimi ni H na Kozukuri Lesson~
Nise Bitch ~Riajuu Butte mo Pure de Ichizu na Osananajimi ni H na Kozukuri Lesson~
23%
Tags
  • Cosplay
  • Footjob
  • Nympho Heroine
  • Spoons
  • Impregnation
Rating 6.3330 Users
Ore to Imouto no Kounai Play 2 ~Imouto wa Ore ga Otosu~
Ore to Imouto no Kounai Play 2 ~Imouto wa Ore ga Otosu~
21%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Brother/Sister Romance
  • Consensual Phone Sex
  • Completely Avoidable Netorare
  • Blood-related Brother/Sister Incest
Rating 6.4836 Users
Kanojo wa Ecchi de Midara na Hentai
Kanojo wa Ecchi de Midara na Hentai
21%
Tags
  • Student Council Member Heroine
  • Student Council President Protagonist
  • Arranged Marriage
  • Protagonist's Fiancee as a Heroine
  • Popular Protagonist
Rating 7.0640 Users
Love Pote Gakuen ~Anata no Kodane de Haramitai~
Love Pote Gakuen ~Anata no Kodane de Haramitai~
21%
Tags
  • Birthrate Decline
  • Shimaidon
  • Oyakodon
  • Inbreeding
  • Protagonist's Ex as a Heroine
Rating 6.3846 Users
Shiro Koki Kuro Koki ~Kuro Tights ni Semerareru ga Sore Gurai de wa Shiro Knee Socks o Akiramenai Ore~
Shiro Koki Kuro Koki ~Kuro Tights ni Semerareru ga Sore Gurai de wa Shiro Knee Socks o Akiramenai Ore~
21%
Tags
  • Foreskin Play
  • Twin Footjob
  • Kneepit Sex
  • Pantyjob
  • Censored Text
Rating 6.4427 Users
Ane Yome Concerto
Ane Yome Concerto
20%
Tags
  • Ear-Cleaning
  • Glasses Option
  • Ejaculation Forewarner
  • Mirror Sex
  • Protagonist's Wife as a Heroine
Rating 7.5053 Users
Binary Pot
Binary Pot
20%
Tags
  • Waitress Heroine
  • Fictional World
  • Ponytail Heroine
  • Twin Tail Heroine
  • Branching Plot
Rating 6.0723 Users
Jukujo Hokenshitsu ~Midara na Kyonyuu ni Sasowarete~
Jukujo Hokenshitsu ~Midara na Kyonyuu ni Sasowarete~
20%
Tags
  • School Nurse Heroine
  • Only Older Heroines
  • Heroine with Children
  • Stockings
  • Only Adult Heroines
Rating 6.3624 Users
Lovecha ~Tsumasakidachi de, Hitomi o Tojite~
Lovecha ~Tsumasakidachi de, Hitomi o Tojite~
20%
Tags
  • Elementary School
  • Elementary School Student Heroine
  • Student-Teacher Romance
  • Armpit Licking
  • Hetare Protagonist
Rating 6.2025 Users
Hitomi no Rakuin 4 ~Etsujoku no Soushin Kaizou~
Hitomi no Rakuin 4 ~Etsujoku no Soushin Kaizou~
20%
Tags
  • Twin Buttjob
  • Glory Hole Sex
  • Mind Control
  • Background Moans
  • Armpit Sex
Rating 6.4927 Users
Yandere na Shimai ni Shirokujichuu Aishi Tsukusareru ~Ninshin Suru no wa Watashi! Anata no Idenshi o Shikyuu de Hagukumitai no!~
Yandere na Shimai ni Shirokujichuu Aishi Tsukusareru ~Ninshin Suru no wa Watashi! Anata no Idenshi o Shikyuu de Hagukumitai no!~
20%
Tags
  • Obsession
  • Twin Buttjob
  • Yandere Heroine
  • Brocon Heroine
  • Blood-related Sister/Sister Incest
Rating 6.4242 Users
Poyopoyo Oppai Summer
Poyopoyo Oppai Summer
19%
Tags
  • Breast Expansion
  • Heroine with Spats
  • Scientist Heroine
  • Heroine with Shorts
  • Heroine with Intake Hairstyle
Rating 6.7724 Users
Hitozuma Dorei Keikaku
Hitozuma Dorei Keikaku
19%
Tags
  • Urination Fetish
  • Dramatic Love Triangle
  • Revenge
  • Heroine with Garter Belt
  • Protagonist's Sister as a Support Character
Rating 6.8934 Users
Trouble Home! ~Giri no Haha to Imouto wa Koigataki~
Trouble Home! ~Giri no Haha to Imouto wa Koigataki~
19%
Tags
  • Oyakodon Ending
  • Heroine with Ahoge
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Non-blood-related Incest
Rating 6.9148 Users
Love Commu
Love Commu
19%
Tags
  • May-December Romance
  • Ojousama Heroine
  • Protagonist's Sister as a Support Character
  • All-girls School
  • Teacher Protagonist
Rating 7.4339 Users
Gekkakou ~Itsuwari no Kizuna~
Gekkakou ~Itsuwari no Kizuna~
18%
Tags
  • Anal Fisting
  • Fisting
  • Pubic Hair Shaving
  • Masturbation with Object
  • Prostitution
Rating 6.2321 Users
Saimin Paranoia
Saimin Paranoia
18%
Tags
  • Chikan Protagonist
  • Molestation on Public Transport
  • Gyaru Heroine
  • Erotic Mind Control
  • Sex in a Vehicle
Rating 6.4237 Users
Imouto ga Boku o Neratteru
Imouto ga Boku o Neratteru
17%
Tags
  • Heroine Sisters
  • Reverse Netorare
  • Brother/Sister Romance
  • Triple Boobjob
  • Perverted Friend
Rating 6.1848 Users
After...
After...
17%
Tags
  • Utsuge
  • Protagonist's Full Sister as a Heroine
  • Protagonist's Younger Sister as a Heroine
  • School
  • Blood-related Brother/Sister Incest
Rating 6.5433 Users
Zettai Junshu ☆ Kozukuri Kyokashou Paradise!! ~Aa, Subarashiki Haramasekai~
Zettai Junshu ☆ Kozukuri Kyokashou Paradise!! ~Aa, Subarashiki Haramasekai~
17%
Tags
  • Sprite Filter
  • Birthrate Decline
  • Sex License
  • Bodyguard Heroine
  • Hotel
Rating 7.42104 Users

Imouto 4nin to Nakadashi Seikatsu! ~Jare Tsuki Amae ni Osewa♪ Imouto-tachi to Ichaicha ga Tomaranai! Onii-chan no Seishi wa Zetsumetsu Hisshi!?~ 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 (24 total)

NameScoreImportanceWeight
Non-blood-related Incest3.002.627.86
Protagonist's Younger Sister as a Heroine3.001.885.64
Non-blood-related Brother/Sister Incest3.001.765.28
Chuunibyou Heroine2.002.545.08
Heroine with Heterochromia2.002.224.43
Incest2.002.104.21
Harem Ending3.001.404.20
Only Protagonist's Sisters as Heroine(s)2.001.993.98
Half-Japanese Heroine2.001.943.88
Madness2.001.913.81
Brocon Heroine2.001.613.23
Internal Exhibition of Sex2.001.563.11
Pregnancy2.001.523.04
Yandere Heroine1.501.892.84
Tsundere Heroine2.001.402.79
Impregnation2.001.372.75
Pregnant Sex2.001.172.35
Sex with Protagonist Only2.001.132.26
Imouto-type Heroine1.251.742.17
Only Virgin Heroines2.001.082.16
Nukige3.000.651.95
Defloration2.000.761.51
Male Protagonist2.000.300.61
ADV2.000.150.29

Traits (72 total)

NameCharactersImportanceWeight
Non-blood-related Sister Role42.173.49
Brother Complex Personality42.063.31
Yukata Clothes41.852.98
Lactation Engages in41.592.56
Pregnant Sex Engages in (Sexual)41.532.46
Deep V-Neck Swimsuit Clothes13.482.41
Group Sex Engages in (Sexual)41.492.40
Bikini Clothes41.462.36
Younger Sister Role41.442.32
Pregnancy Subject of41.402.25
Happi Clothes13.162.19
T-shirt Clothes41.322.12
Chuunibyou Personality12.831.96
Outdoor Sex Engages in (Sexual)41.161.86
Wings Clothes12.641.83
Mini Hat Clothes12.601.80
Pink Eyes21.611.77
Puffy Personality12.511.74
Discreet Phone Sex Engages in (Sexual)12.441.69
Nipple Insertion Subject of (Sexual)12.441.69
Leotard Clothes12.381.65
Non-blood-related Brother Role12.371.64
Half-Japanese Role12.321.61
Twin Blowjob Engages in (Sexual)21.451.59
Lolita Clothes12.261.57
Tank Top Clothes21.421.56
Food Play Engages in (Sexual)12.231.54
Gothic Clothes12.191.52
Yandere Personality12.181.51
Non-blood-related Incest Engages in (Sexual)12.151.49
Sitting Sex Subject of (Sexual)31.061.47
Cloak Clothes12.041.41
Cyan Hair12.021.40
Virgin Sex Engages in (Sexual)40.851.37
Immature Personality11.931.34
Ribbon Hair Tie Clothes21.191.31
Naked Apron Clothes11.871.30
Unusual Hair Ornaments Clothes11.871.30
Tsundere Personality11.871.30
Discreet Sex Engages in (Sexual)11.861.29
Twin Tails Hair21.131.24
Older Brother Role11.731.20
Mole Body11.601.11
Teen Body50.621.11
Sidehair Hair20.981.07
Refined Personality11.541.07
Cowgirl Subject of (Sexual)20.951.05
Pissing Engages in (Sexual)11.461.01
Cooking Engages in11.420.98
V Bangs Hair11.410.98
Hairpin Clothes11.400.97
Nipple Sucking Subject of (Sexual)11.390.96
Ahoge Hair11.320.91
Black Hair20.810.88
Sixty-nine Engages in (Sexual)11.260.87
Parted in Middle Hair11.250.87
Trousers Clothes11.200.83
Long Hair20.750.83
Standing Sex Subject of (Sexual)11.180.82
Quickie Fix Subject of (Sexual)11.080.75
Boobjob Engages in (Sexual)11.060.74
Miniskirt Clothes11.060.74
Violet Eyes11.040.72
Thigh-high Stockings Clothes11.040.72
Green Eyes11.020.70
Short Hair20.610.67
Pale Body50.370.66
Blond Hair10.890.61
Waist Length+ Hair10.810.56
Blue Eyes10.800.56
Blowjob Engages in (Sexual)10.760.53
Brown Hair10.680.47