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Summary

Uh-oh! My twin sisters are failing their classes! As a teacher at their school, I feel obligated to help them study, but these two girls have no intention of applying themselves. I've managed to get them to agree to study sessions in exchange for pampering them, but now they're saying they’ve realized their true feelings for me and are starting to fight over me! What's going on? Being a big brother to two cute but headstrong girls was already hard enough without adding this to the mix...! Come explore the depths of forbidden familial love with Chinkamo Twins, a story about two twin sisters who love their Onii-chan a little too much! [Edited from JAST USA]

Neko-nin exHeart 2
Neko-nin exHeart 2
NAN%
Tags
  • Sex Scene Recollection
  • Kunoichi Heroine
  • Catgirl Heroine
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Rabbitgirl Heroine
Rating 6.88430 Users
Shimojimo no Seikatsu o Tashinamu Tame no Tsudoi ~Muchi de Kouki na Ojou-sama wa Shomin no Seikatsu ni Kyoumi Shinshin~
Shimojimo no Seikatsu o Tashinamu Tame no Tsudoi ~Muchi de Kouki na Ojou-sama wa Shomin no Seikatsu ni Kyoumi Shinshin~
NAN%
Tags
  • Foolish Protagonist
  • Stockings
  • No Common Sense Heroine
  • Ojousama Heroine
  • Nursing Handjob
Rating 7.3021 Users
Wanko no Yomeiri ~Youkoso! Inu no Shippo e~
Wanko no Yomeiri ~Youkoso! Inu no Shippo e~
NAN%
Tags
  • Doggirl Heroine
  • Kemonomimi Heroine
  • Heroine with Kimono
  • Heroine with Spats
  • Shinto Shrine
Rating 6.5567 Users
Neko-nin exHeart
Neko-nin exHeart
NAN%
Tags
  • Sex Scene Recollection
  • Interracial/interspecies Romance
  • Kunoichi Heroine
  • Catgirl Heroine
  • Shimaidon Ending
Rating 6.39826 Users
Koi ni wa Amae ga Hitsuyou Desu ~Motto Amaeru Dake MiniFanDisc
Koi ni wa Amae ga Hitsuyou Desu ~Motto Amaeru Dake MiniFanDisc
NAN%
Tags
  • Protagonist's Girlfriend as a Heroine
  • Scenario Selection
  • Modern Day Japan
  • University Student Heroine
  • Single Footjob
Rating 7.5724 Users
Nyan Café Macchiato ~Neko ga Iru Café no Ecchi Jijou~
Nyan Café Macchiato ~Neko ga Iru Café no Ecchi Jijou~
NAN%
Tags
  • Love Rivalry
  • Protagonist's Employee as a Heroine
  • Polyamory
  • Student-Teacher Romance
  • Homemaker Protagonist
Rating 6.82242 Users
Loca Love - Dousei x Kouhai
Loca Love - Dousei x Kouhai
NAN%
Tags
  • Pillow Talk
  • Protagonist's Kouhai as a Heroine
  • Panchira
  • Co-worker Heroine
  • Under the Same Roof
Rating 6.83583 Users
Isekai Sakaba no Sextet ~Vol.2 Adventurer
Isekai Sakaba no Sextet ~Vol.2 Adventurer's Days~
NAN%
Tags
  • Cook Protagonist
  • Bar
  • Unavoidable Harem Ending
  • Polyamory
  • Panchira
Rating 6.59323 Users
Ero Imo Cyclone! ~Uzumaku Eroero wa Imouto o Chuushin ni Kyuusoku Kakudaichuu!~
Ero Imo Cyclone! ~Uzumaku Eroero wa Imouto o Chuushin ni Kyuusoku Kakudaichuu!~
NAN%
Tags
  • Family Life Comedy
  • Unavoidable Harem Ending
  • Polyamory
  • Triple Footjob
  • Boke Heroine
Rating 6.8424 Users
shin-neko ~Saikai Shita Imouto to no Arata na Kankei~
shin-neko ~Saikai Shita Imouto to no Arata na Kankei~
NAN%
Tags
  • Straight Lolicon
  • Only Blood-related Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Only Younger Heroines
  • Only Loli Heroines
Rating 6.5030 Users
Uchi no Kanojo
Uchi no Kanojo
NAN%
Tags
  • Salaryman Protagonist
  • Backlog Jump
  • Ejaculation Forewarner
  • Deredere Heroine
  • Slice of Life
Rating 6.75269 Users
Kemonomichi ☆ Girlish Square LOVE+PLUS
Kemonomichi ☆ Girlish Square LOVE+PLUS
NAN%
Tags
  • Japanese Idols
  • Mahou Shoujo Heroine
  • Idol Heroine
  • Modern Tsundere Heroine
  • Donkan Protagonist
Rating 6.5452 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
Kemomimi Musume-tachi ga Iyashite Kureru Kozukuri Onsen
Kemomimi Musume-tachi ga Iyashite Kureru Kozukuri Onsen'yado
NAN%
Tags
  • Kemonomimi Heroine
  • Unnamed Protagonist
  • Werewolf Heroine
  • Rabbitgirl Heroine
  • Kitsune Heroine
Rating 6.4256 Users
Neko-nin exHeart +Plus Saiha Hen
Neko-nin exHeart +Plus Saiha Hen
NAN%
Tags
  • Kunoichi Heroine
  • Kuudere Heroine
  • Background Moans
  • Protagonist's Childhood Friend as a Heroine
  • Sex with Protagonist Only
Rating 6.53396 Users
Kemonomichi ☆ Girlish Square
Kemonomichi ☆ Girlish Square
NAN%
Tags
  • Indecisive Protagonist
  • Mahou Shoujo Heroine
  • Unavoidable Harem Ending
  • Kemonomimi Heroine
  • Comedic Love Triangle
Rating 6.57142 Users
Kemo Ane ~Kemomimi Onee-san o Oyome-san ni Shite Isekai Haramase Slow Life~
Kemo Ane ~Kemomimi Onee-san o Oyome-san ni Shite Isekai Haramase Slow Life~
NAN%
Tags
  • Doggirl Heroine
  • Kemonomimi Heroine
  • Discrimination
  • Protagonist from a Different World
  • Unnamed Protagonist
Rating 6.5645 Users
DraPri Guu-ta-life 3
DraPri Guu-ta-life 3
NAN%
Tags
  • NEET Protagonist
  • Airhead Protagonist
  • Royal Heroine
  • Dragon Heroine
  • Comedic Love Triangle
Rating 7.32146 Users
WABISABI
WABISABI
NAN%
Tags
  • Painter Protagonist
  • Homecoming
  • Kemonomimi Heroine
  • Countryside
  • Goddess Heroine
Rating 5.97141 Users
DraPri Guu-ta-life LOVE + PLUS
DraPri Guu-ta-life LOVE + PLUS
NAN%
Tags
  • Dragon Heroine
  • Comedic Love Triangle
  • Poor Protagonist
  • Muted Obscenities
  • Unavoidable Harem Ending
Rating 6.43218 Users
Isekai Fuuzoku, Hajimemashita!? ~Tensei Shitara Harem Seikatsu ga Mattemashita~
Isekai Fuuzoku, Hajimemashita!? ~Tensei Shitara Harem Seikatsu ga Mattemashita~
NAN%
Tags
  • Undead Heroine
  • Dragon Heroine
  • Kneepit Sex
  • Heroine with Wings
  • Angel Heroine
Rating 6.6645 Users
Shasei no Jikan! ~Boku no Oinari-san wa Babumi Tappuri no Oiroke Onee-san~
Shasei no Jikan! ~Boku no Oinari-san wa Babumi Tappuri no Oiroke Onee-san~
NAN%
Tags
  • Kitsune Heroine
  • Heroine with Kimono
  • Ear-Cleaning
  • Single Handjob
  • Single Boobjob
Rating 6.1838 Users
Gyaruko-chan to Shippori Onsen Ryokou ~H Shimakuri Sanpaku Yokka no Tabi~
Gyaruko-chan to Shippori Onsen Ryokou ~H Shimakuri Sanpaku Yokka no Tabi~
NAN%
Tags
  • Onsen
  • Gyaru Heroine
  • Oyaji Protagonist
  • Only Non-Virgin Heroines
  • Prostitute Heroine
Rating 6.8026 Users
Neko-nin exHeart 2 LOVE +PLUS
Neko-nin exHeart 2 LOVE +PLUS
NAN%
Tags
  • Sex Scene Recollection
  • Catgirl Heroine
  • Kunoichi Heroine
  • Rabbitgirl Heroine
  • Clumsy Heroine
Rating 6.81231 Users
Chinkamo Twins 2! ~Natsu da! Umi da! Futago no Imouto Oppai Taiketsu da!~
Chinkamo Twins 2! ~Natsu da! Umi da! Futago no Imouto Oppai Taiketsu da!~
38%
Tags
  • Only Blood-related Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Unnamed Protagonist
  • Twin Footjob
  • Oppai Loli Heroine
Rating 6.3720 Users
Wan Nyan ☆ A La Mode! ~Docchi ni Suru no? Wan Nyan H na Café Jijou!~
Wan Nyan ☆ A La Mode! ~Docchi ni Suru no? Wan Nyan H na Café Jijou!~
26%
Tags
  • Baker Protagonist
  • Comedic Love Triangle
  • Clothed Boobjob
  • Changeable Clothes
  • Donkan Protagonist
Rating 6.57186 Users
Kemomimi Musume-tachi ga Iyashite Kureru Kozukuri Onsen
Kemomimi Musume-tachi ga Iyashite Kureru Kozukuri Onsen'yado
25%
Tags
  • Kemonomimi Heroine
  • Unnamed Protagonist
  • Werewolf Heroine
  • Rabbitgirl Heroine
  • Kitsune Heroine
Rating 6.4256 Users
Isekai Sakaba no Sextet ~Vol.3 Postlude Days~
Isekai Sakaba no Sextet ~Vol.3 Postlude Days~
25%
Tags
  • Heroine from a Different World
  • Priestess Heroine
  • Unavoidable Harem Ending
  • Polyamory
  • Protagonist from a Different World
Rating 6.75267 Users
Kemonomichi ☆ Girlish Square LOVE+PLUS
Kemonomichi ☆ Girlish Square LOVE+PLUS
24%
Tags
  • Japanese Idols
  • Mahou Shoujo Heroine
  • Idol Heroine
  • Modern Tsundere Heroine
  • Donkan Protagonist
Rating 6.5452 Users
shin-neko ~Saikai Shita Imouto to no Arata na Kankei~
shin-neko ~Saikai Shita Imouto to no Arata na Kankei~
23%
Tags
  • Straight Lolicon
  • Only Blood-related Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Only Younger Heroines
  • Only Loli Heroines
Rating 6.5030 Users
Uchi no Kanojo
Uchi no Kanojo
23%
Tags
  • Salaryman Protagonist
  • Backlog Jump
  • Ejaculation Forewarner
  • Deredere Heroine
  • Slice of Life
Rating 6.75269 Users
Isekai Sakaba no Sextet ~Vol.2 Adventurer
Isekai Sakaba no Sextet ~Vol.2 Adventurer's Days~
23%
Tags
  • Cook Protagonist
  • Bar
  • Unavoidable Harem Ending
  • Polyamory
  • Panchira
Rating 6.59323 Users
Ero Imo Cyclone! ~Uzumaku Eroero wa Imouto o Chuushin ni Kyuusoku Kakudaichuu!~
Ero Imo Cyclone! ~Uzumaku Eroero wa Imouto o Chuushin ni Kyuusoku Kakudaichuu!~
23%
Tags
  • Family Life Comedy
  • Unavoidable Harem Ending
  • Polyamory
  • Triple Footjob
  • Boke Heroine
Rating 6.8424 Users
Kemonomichi ☆ Girlish Square
Kemonomichi ☆ Girlish Square
23%
Tags
  • Indecisive Protagonist
  • Mahou Shoujo Heroine
  • Unavoidable Harem Ending
  • Kemonomimi Heroine
  • Comedic Love Triangle
Rating 6.57142 Users
DraPri Guu-ta-life 3
DraPri Guu-ta-life 3
23%
Tags
  • NEET Protagonist
  • Airhead Protagonist
  • Royal Heroine
  • Dragon Heroine
  • Comedic Love Triangle
Rating 7.32146 Users
DraPri Guu-ta-life LOVE + PLUS
DraPri Guu-ta-life LOVE + PLUS
22%
Tags
  • Dragon Heroine
  • Comedic Love Triangle
  • Poor Protagonist
  • Muted Obscenities
  • Unavoidable Harem Ending
Rating 6.43218 Users
Shasei no Jikan! ~Boku no Oinari-san wa Babumi Tappuri no Oiroke Onee-san~
Shasei no Jikan! ~Boku no Oinari-san wa Babumi Tappuri no Oiroke Onee-san~
22%
Tags
  • Kitsune Heroine
  • Heroine with Kimono
  • Ear-Cleaning
  • Single Handjob
  • Single Boobjob
Rating 6.1838 Users
Neko-nin exHeart 2 LOVE +PLUS
Neko-nin exHeart 2 LOVE +PLUS
22%
Tags
  • Sex Scene Recollection
  • Catgirl Heroine
  • Kunoichi Heroine
  • Rabbitgirl Heroine
  • Clumsy Heroine
Rating 6.81231 Users
Pure Marriage ~Akai Ito Monogatari - Harem Hen~
Pure Marriage ~Akai Ito Monogatari - Harem Hen~
21%
Tags
  • Polygamy
  • Wedding
  • Protagonist's Sister as a Heroine
  • Modern Tsundere Heroine
  • Harem Ending
Rating 6.6527 Users
DraPri Guu-ta-life 2
DraPri Guu-ta-life 2
21%
Tags
  • Royal Heroine
  • Dragon Heroine
  • Comedic Love Triangle
  • Queen Heroine
  • Poor Protagonist
Rating 7.01234 Users
DraPri Guu-ta-life
DraPri Guu-ta-life
21%
Tags
  • NEET Protagonist
  • Dragon Heroine
  • Muted Obscenities
  • Comedic Love Triangle
  • Poor Protagonist
Rating 6.27505 Users
Island Diary
Island Diary
21%
Tags
  • Stranded
  • Harem Ending with Theme
  • Polyamory
  • Kemonomimi Heroine
  • Fictional Modern Day Japanese Island
Rating 6.63283 Users
Onii-chan Chou Suki 99 Jikan Ecchi Shiyo!
Onii-chan Chou Suki 99 Jikan Ecchi Shiyo!
21%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Brother/Sister Romance
  • Unnamed Protagonist
  • Protagonist's Younger Sister as a Heroine
  • Shimaidon with Twins Ending
Rating 7.2140 Users
Neko-nin exHeart +Plus Nachi Hen
Neko-nin exHeart +Plus Nachi Hen
21%
Tags
  • Catgirl Heroine
  • Kunoichi Heroine
  • Modern Tsundere Heroine
  • Background Moans
  • Sex with Protagonist Only
Rating 6.51398 Users
Kanojo no Imouto to Himitsu no Stay Home ~Uchiki Musume ga Haitoku Netori!~
Kanojo no Imouto to Himitsu no Stay Home ~Uchiki Musume ga Haitoku Netori!~
20%
Tags
  • Reverse Netorare
  • Shimaidon
  • Completion Status Indicator
  • Shimaidon Ending
  • Short Sexual Scenes
Rating 6.0468 Users
Uchi no Imouto
Uchi no Imouto
20%
Tags
  • Protagonist's Sister as a Heroine
  • Protagonist's Blood-related Sister as a Heroine
  • Brother/Sister Romance
  • Protagonist's Full Sister as a Heroine
  • Incest Romance
Rating 6.79312 Users
Isekai Sakaba no Sextet ~Vol.1 New World Days~
Isekai Sakaba no Sextet ~Vol.1 New World Days~
20%
Tags
  • Cook Protagonist
  • Bar
  • Unavoidable Harem Ending
  • Cliffhanger Ending
  • No "Keep Voice on Click" Option
Rating 6.60489 Users

Chinkamo Twins! ~Futago no Imouto-tachi ni Natsukareteru no wa Wakatteta kedo Masaka Ren'ai Kanjou ni Kawaru Nante Omottenakatta Ken~ 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 (19 total)

NameScoreImportanceWeight
Unnamed Protagonist3.001.885.64
Blood-related Brother/Sister Incest3.001.494.46
Only Protagonist's Sisters as Heroine(s)2.001.993.98
Backlog Jump2.001.953.90
Twin Sisters as Heroines2.001.823.65
Teacher Protagonist2.001.753.49
Brocon Heroine2.001.613.23
Background Moans2.001.442.87
High School Student Heroine3.000.852.55
Side Portraits2.001.162.32
Other Perspectives2.001.142.27
Sex with Protagonist Only2.001.132.26
Only Virgin Heroines2.001.082.17
Heroine with Big Breasts2.000.851.71
Defloration2.000.761.52
Oppai Loli Heroine0.672.201.47
Few Choices1.001.341.34
Male Protagonist2.000.300.61
ADV2.000.150.29

Traits (66 total)

NameCharactersImportanceWeight
Twin Footjob Engages in (Sexual)22.753.02
Twin Handjob Engages in (Sexual)22.212.43
Sex on Beach Engages in (Sexual)22.162.37
Sweets Lover Personality22.092.30
Brother Complex Personality22.062.26
Nipple Teasing Engages in (Sexual)22.022.22
Twin Sister Role21.862.04
Sports Jersey Clothes12.761.91
Discreet Masturbation Engages in (Sexual)12.751.91
Spoons Subject of (Sexual)21.671.83
Basketball Engages in12.541.76
Incest Engages in (Sexual)21.471.61
Twin Blowjob Engages in (Sexual)21.451.59
Younger Sister Role21.441.59
Tank Top Clothes21.421.56
Gym Shorts Clothes12.221.54
Pleated Skirt Clothes21.401.54
Mask Clothes12.111.46
Ahoge Hair21.321.45
Sex in Public Places Engages in (Sexual)21.261.38
Ribbon Tie Clothes21.251.37
Swimming Engages in11.971.36
One Piece Swimsuit Clothes11.921.33
Unusual Hair Ornaments Clothes11.871.30
Group Sex of One Male and Several Females Engages in (Sexual)21.171.29
Handjob Engages in (Sexual)21.161.27
Blazer Clothes11.831.27
Hat Clothes11.831.27
Missionary Subject of (Sexual)21.121.23
Vaginal Fingering Subject of (Sexual)21.081.19
Miniskirt Clothes21.061.17
Carefree Personality11.681.16
Reverse Cowgirl Subject of (Sexual)11.631.13
Clothing with Ribbons Clothes11.571.09
Nipple Teasing Subject of (Sexual)11.571.09
Big Breast Sizes Body11.541.07
Medium Breasts Body11.521.05
Cowgirl Subject of (Sexual)20.951.05
Orange Hair11.511.05
Doggy Style Subject of (Sexual)20.931.02
Bikini Clothes11.461.01
Seventh Posture Subject of (Sexual)11.461.01
V Bangs Hair11.410.98
Hairpin Clothes11.400.97
Masturbation Engages in (Sexual)11.390.96
Nipple Sucking Subject of (Sexual)11.380.96
Tominagi Subject of (Sexual)11.360.94
Virgin Sex Engages in (Sexual)20.850.93
Sixty-nine Engages in (Sexual)11.260.87
Blowjob Engages in (Sexual)20.760.84
Blue Hair11.190.83
School Uniform Clothes20.750.83
Cunnilingus Subject of (Sexual)11.160.81
Big Breasts Body11.140.79
Twin Tails Hair11.130.78
Boobjob Engages in (Sexual)11.070.74
Sitting Sex Subject of (Sexual)11.060.74
Violet Eyes11.040.72
Thigh-high Stockings Clothes11.040.72
Green Eyes11.020.70
Teen Body20.620.68
Slim Body20.580.63
Waist Length+ Hair10.810.56
Short Hair10.610.42
Pale Body20.370.41
20.000.00