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Summary

Tachibanaki Keisuke, a fresh-faced newbie just starting his journey as a full-fledged member of society. His company might not be a big name, but it is the job he'd always wanted, and life's treating him well. But even with his go-getter attitude and eyes on the prize, living solo for the first time has him feeling a bit burnt out. That's when the thought hits him... [I]"Having a girlfriend wouldn't be so bad..."[/i] One day, his younger sister Riho shows up on his doorstep, bags in tow. Turns out, their parents have been knocked out by the Norovirus, and with Riho's college exams looming, they've shipped her off to Keisuke's place for some healthy isolation. Now, Riho's had her brother on her radar as more than just a sibling for a long while, and living under the same roof? Let's just say those feelings go from a simmer to a [b]full-blown boil.[/b] Keisuke, on the other hand, starts seeing Riho in a whole new light, not just as his little sister, but as a woman. Their relationship starts to blossom into something... [b]Beyond brother and sister...[/b] [Based on MangaGamer]

NinNinDays2
NinNinDays2
NAN%
Tags
  • Kunoichi Heroine
  • Short Heroine
  • Highly Animated Sprites
  • No "Keep Voice on Click" Option
  • Heroine with Heterochromia
Rating 6.58127 Users
Ninki Seiyuu no Tsukurikata
Ninki Seiyuu no Tsukurikata
NAN%
Tags
  • Seiyuu Heroine
  • Dormitory Manager Protagonist
  • Correct Choice Indicator
  • Dormitory Manager Heroine
  • School Dormitory
Rating 7.25536 Users
Toshiue Kanojo no Amayaka Dousei
Toshiue Kanojo no Amayaka Dousei
NAN%
Tags
  • Pillow Talk
  • Only Older Heroines
  • Heroine with Kimono
  • Heroine with Beauty Mark
  • University Student Heroine
Rating 7.2434 Users
Bosei Kanojo 2 -Chisei Houkai Hen-
Bosei Kanojo 2 -Chisei Houkai Hen-
NAN%
Tags
  • Cousin Incest
  • Protagonist's Cousin as a Heroine
  • Pure Love Story
  • Only Protagonist's Relatives as Heroine(s)
  • Domicile
Rating 7.2244 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
Aikotoba
Aikotoba
NAN%
Tags
  • Social Networking Service
  • Forbidden Love
  • Brother/Sister Romance
  • Protagonist's Younger Sister as a Heroine
  • Protagonist's Full Sister as a Heroine
Rating 7.17132 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
Tonari ni Kanojo no Iru Shiawase ~Summer Surprise~
Tonari ni Kanojo no Iru Shiawase ~Summer Surprise~
NAN%
Tags
  • Heroine with Zettai Ryouiki
  • Only Younger Heroines
  • Imouto-type Heroine
  • Single Ending
  • Protagonist's Childhood Friend as a Heroine
Rating 7.0332 Users
Aikagi
Aikagi
NAN%
Tags
  • Pillow Talk
  • Pure Love Story
  • Ejaculation Forewarner
  • Secret Romance
  • Slice of Life
Rating 6.66381 Users
Onii-chan, Kiss no Junbi wa Mada Desu ka?
Onii-chan, Kiss no Junbi wa Mada Desu ka?
NAN%
Tags
  • Harem Ending with Theme
  • Only Blood-related Heroines
  • Pillow Talk
  • Non-twin Heroine Sisters
  • Protagonist as the Only Male
Rating 7.21877 Users
Koiyasumi ~Yuudachi ni Nureta Osananajimi~
Koiyasumi ~Yuudachi ni Nureta Osananajimi~
NAN%
Tags
  • Countryside
  • Rain
  • Grandmother Support Character
  • Mischievous Heroine
  • Deredere Heroine
Rating 6.8996 Users
Love Sweets
Love Sweets
NAN%
Tags
  • Heroine Using Japanese Dialect
  • Co-worker Heroine
  • Baker Heroine
  • Choices with 4 or More Options
  • Waitress Heroine
Rating 6.67333 Users
Nekogami-sama to, Nanatsuboshi -Imouto no Ane-
Nekogami-sama to, Nanatsuboshi -Imouto no Ane-
NAN%
Tags
  • Protagonist's Half-sister as a Heroine
  • Protagonist's Younger Sister as a Heroine
  • Brother/Sister Romance
  • Forbidden Love
  • Blood-related Brother/Sister Incest
Rating 6.74220 Users
Imouto no Seiiki
Imouto no Seiiki
NAN%
Tags
  • Protagonist's Blood-related Sister as a Heroine
  • Late Branching Plot
  • Protagonist's Younger Sister as a Heroine
  • Brocon Heroine
  • Childhood Friend Support Character
Rating 6.53303 Users
Kanojo no Seiiki
Kanojo no Seiiki
NAN%
Tags
  • Brocon Support Character
  • Modern Day Akihabara
  • Reunion
  • Master and Servant
  • Late Branching Plot
Rating 6.43500 Users
HarmonEy
HarmonEy
NAN%
Tags
  • Protagonist's Wife as a Heroine
  • Ejaculation Forewarner
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Salaryman Protagonist
  • Bonus Side Stories
Rating 7.10164 Users
Boku to Koi Suru Ponkotsu Akuma. Suggoi Ecchi!
Boku to Koi Suru Ponkotsu Akuma. Suggoi Ecchi!
NAN%
Tags
  • Mummy
  • Yuki-onna Heroine
  • Dragon Heroine
  • Heroine with Demon Blood
  • Angel Heroine
Rating 7.20534 Users
Maid-san no Iru Kurashi
Maid-san no Iru Kurashi
NAN%
Tags
  • Donkan Protagonist
  • Maid Heroine
  • No Common Sense Heroine
  • Sexual Fantasizing
  • Bleep Censor
Rating 7.11202 Users
Mamiya Mami wa Iyashite Agetai
Mamiya Mami wa Iyashite Agetai
NAN%
Tags
  • Separate Text Boxes
  • Succubus Heroine
  • Voiced Thoughts
  • Protagonist as the Only Male
  • Vertically Oriented Text
Rating 6.9380 Users
SugarKiss!
SugarKiss!
NAN%
Tags
  • Smoker Protagonist
  • Smoker Heroine
  • Co-worker Heroine
  • Pillow Talk
  • Ejaculation Forewarner
Rating 7.17119 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
Honey*Honey*Honey!
Honey*Honey*Honey!
NAN%
Tags
  • Unlockable Sexual Content
  • Sex in Karaoke Box
  • Early Branching Plot
  • Varied Title Screens
  • Nude Filter
Rating 6.40302 Users
Tamayura Mirai
Tamayura Mirai
NAN%
Tags
  • Sexually Oblivious Heroine
  • Short Heroine
  • Youkai Heroine
  • Episodic Story
  • Protagonist's Older Sister as a Heroine
Rating 7.45367 Users
Loca Love - Jinja x Senpai
Loca Love - Jinja x Senpai
NAN%
Tags
  • Pillow Talk
  • Shinto Shrine
  • Pure Love Story
  • Ear-Cleaning
  • Unlockable Concept Art
Rating 6.71303 Users
Uchi no Kanojo
Uchi no Kanojo
50%
Tags
  • Salaryman Protagonist
  • Backlog Jump
  • Ejaculation Forewarner
  • Deredere Heroine
  • Slice of Life
Rating 6.75269 Users
Uchi no Koibito
Uchi no Koibito
48%
Tags
  • Threesome
  • Musician Heroine
  • Siscon Protagonist
  • Unlockable Epilogue
  • Twin Handjob
Rating 7.30187 Users
Imouto no Seiiki
Imouto no Seiiki
27%
Tags
  • Protagonist's Blood-related Sister as a Heroine
  • Late Branching Plot
  • Protagonist's Younger Sister as a Heroine
  • Brocon Heroine
  • Childhood Friend Support Character
Rating 6.53303 Users
Nekogami-sama to, Nanatsuboshi -Imouto no Ane-
Nekogami-sama to, Nanatsuboshi -Imouto no Ane-
26%
Tags
  • Protagonist's Half-sister as a Heroine
  • Protagonist's Younger Sister as a Heroine
  • Brother/Sister Romance
  • Forbidden Love
  • Blood-related Brother/Sister Incest
Rating 6.74220 Users
Love Sweets
Love Sweets
23%
Tags
  • Heroine Using Japanese Dialect
  • Co-worker Heroine
  • Baker Heroine
  • Choices with 4 or More Options
  • Waitress Heroine
Rating 6.67333 Users
Onii-chan, Kiss no Junbi wa Mada Desu ka?
Onii-chan, Kiss no Junbi wa Mada Desu ka?
23%
Tags
  • Harem Ending with Theme
  • Only Blood-related Heroines
  • Pillow Talk
  • Non-twin Heroine Sisters
  • Protagonist as the Only Male
Rating 7.21877 Users
Koiyasumi ~Yuudachi ni Nureta Osananajimi~
Koiyasumi ~Yuudachi ni Nureta Osananajimi~
23%
Tags
  • Countryside
  • Rain
  • Grandmother Support Character
  • Mischievous Heroine
  • Deredere Heroine
Rating 6.8996 Users
Tonari ni Kanojo no Iru Shiawase ~Summer Surprise~
Tonari ni Kanojo no Iru Shiawase ~Summer Surprise~
22%
Tags
  • Heroine with Zettai Ryouiki
  • Only Younger Heroines
  • Imouto-type Heroine
  • Single Ending
  • Protagonist's Childhood Friend as a Heroine
Rating 7.0332 Users
Aikagi
Aikagi
22%
Tags
  • Pillow Talk
  • Pure Love Story
  • Ejaculation Forewarner
  • Secret Romance
  • Slice of Life
Rating 6.66381 Users
HarmonEy
HarmonEy
22%
Tags
  • Protagonist's Wife as a Heroine
  • Ejaculation Forewarner
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Salaryman Protagonist
  • Bonus Side Stories
Rating 7.10164 Users
Maid-san no Iru Kurashi
Maid-san no Iru Kurashi
22%
Tags
  • Donkan Protagonist
  • Maid Heroine
  • No Common Sense Heroine
  • Sexual Fantasizing
  • Bleep Censor
Rating 7.11202 Users
SugarKiss!
SugarKiss!
22%
Tags
  • Smoker Protagonist
  • Smoker Heroine
  • Co-worker Heroine
  • Pillow Talk
  • Ejaculation Forewarner
Rating 7.17119 Users
Honey*Honey*Honey!
Honey*Honey*Honey!
21%
Tags
  • Unlockable Sexual Content
  • Sex in Karaoke Box
  • Early Branching Plot
  • Varied Title Screens
  • Nude Filter
Rating 6.40302 Users
Loca Love - Jinja x Senpai
Loca Love - Jinja x Senpai
21%
Tags
  • Pillow Talk
  • Shinto Shrine
  • Pure Love Story
  • Ear-Cleaning
  • Unlockable Concept Art
Rating 6.71303 Users
Himukai Chihiro wa Shigoto ga Tsuzukanai
Himukai Chihiro wa Shigoto ga Tsuzukanai
21%
Tags
  • Office
  • Pillow Talk
  • Reunion
  • Track Display
  • Heroine with Beauty Mark
Rating 7.35569 Users
Gakkou no Seiiki
Gakkou no Seiiki
21%
Tags
  • Protagonist's Older Sister as a Heroine
  • Tsukkomi Protagonist
  • Brocon Heroine
  • Heroine with Garter Belt
  • Protagonist's Sister as a Heroine
Rating 6.43206 Users
Icing -love coating-
Icing -love coating-
20%
Tags
  • Pillow Talk
  • Protagonist's Wife as a Heroine
  • Baker Heroine
  • Baker Protagonist
  • Pure Love Story
Rating 6.9494 Users
Chinkamo Twins! ~Futago no Imouto-tachi ni Natsukareteru no wa Wakatteta kedo Masaka Ren
Chinkamo Twins! ~Futago no Imouto-tachi ni Natsukareteru no wa Wakatteta kedo Masaka Ren'ai Kanjou ni Kawaru Nante Omottenakatta Ken~
20%
Tags
  • Unnamed Protagonist
  • Blood-related Brother/Sister Incest
  • Only Protagonist's Sisters as Heroine(s)
  • Backlog Jump
  • Twin Sisters as Heroines
Rating 5.99122 Users
Onee-chan no Yuuwaku
Onee-chan no Yuuwaku
20%
Tags
  • Secret Romance
  • Protagonist's Older Sister as a Heroine
  • Forbidden Love
  • Protagonist's Full Sister as a Heroine
  • Dirty Talk
Rating 7.34670 Users
Imouto Paradise! 3 ~Onii-chan to Gonin no Imouto no Sugo~ku! Ecchi Shimakuri na Mainichi~
Imouto Paradise! 3 ~Onii-chan to Gonin no Imouto no Sugo~ku! Ecchi Shimakuri na Mainichi~
20%
Tags
  • Sprite Filter
  • Non-twin Heroine Sisters
  • Protagonist's Full Sister as a Heroine
  • Family Life Comedy
  • Only Protagonist's Sisters as Heroine(s)
Rating 7.09514 Users
Renran Spirichu
Renran Spirichu
20%
Tags
  • Student Council President Protagonist
  • Breast Expansion
  • Ghost Support Character
  • Heroine with Chinese Dress
  • Promiscuity
Rating 7.2043 Users
Dorei Himekishi to Dorei Jijo to no Slow Life
Dorei Himekishi to Dorei Jijo to no Slow Life
20%
Tags
  • Slave Heroine
  • Protagonist as the Only Male
  • Slavery
  • Only Good Endings
  • Slice of Life
Rating 7.29250 Users
Knot Fiction!
Knot Fiction!
20%
Tags
  • Mischievous Heroine
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Writer Heroine
  • Spring
  • Pure Love Story
Rating 7.05153 Users
Study § Steady
Study § Steady
19%
Tags
  • Protagonist with Voiced Changeable Names
  • Archer Heroine
  • Sexually Oblivious Heroine
  • Hairstyle Option
  • Artificial Intelligence
Rating 7.09720 Users

Uchi no Imouto 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 (35 total)

NameScoreImportanceWeight
Protagonist's Sister as a Heroine3.002.096.26
Protagonist's Blood-related Sister as a Heroine3.001.945.83
Brother/Sister Romance3.001.935.78
Protagonist's Full Sister as a Heroine3.001.875.62
Incest Romance2.002.254.50
Blood-related Brother/Sister Incest3.001.494.46
Only Blood-related Heroines2.002.104.21
Siscon Protagonist2.002.054.11
Unlockable Epilogue2.002.014.02
Only Protagonist's Sisters as Heroine(s)2.001.993.98
Only Younger Heroines2.001.943.89
Unlockable Bonus Content2.001.723.44
Brocon Heroine2.001.613.23
Ejaculation Choice2.001.533.06
Tomboy Heroine2.001.513.01
Kissing Scene2.001.452.89
Background Moans2.001.442.87
Sex in Water2.001.412.82
Linear Plot2.001.382.76
Single Ending2.001.382.76
Reverse Cowgirl2.001.332.66
Under the Same Roof2.001.272.54
Blowjob2.001.112.23
Standing Sex2.001.062.11
Sitting Sex2.001.062.11
Only a Single Heroine2.001.022.04
Outdoor Sex2.001.001.99
Missionary Position2.000.941.88
Doggy Style2.000.801.61
Defloration2.000.761.52
Sexual Content2.000.631.26
Only Virgin Heroines1.001.081.08
Male Protagonist3.000.300.91
ADV2.000.150.29
2.000.000.00

Traits (182 total)

NameCharactersImportanceWeight
Family Oriented Personality52.314.14
Roommate Role52.003.58
Coworker Role51.923.44
Kanban Musume Role22.873.15
Sloppy Personality22.793.07
Moving Engages in32.173.00
Funny Personality32.002.77
Stylish Personality22.392.63
Cooking Engages in51.422.54
Divorcee Role22.312.54
Friendly Personality71.222.54
Bathroom Sex Engages in (Sexual)51.392.49
Poor Role22.262.48
Ambitious Personality22.212.43
Twin Handjob Engages in (Sexual)22.212.43
Management Role22.132.34
Food Lover Personality22.092.30
Twelfth Grader Role22.072.27
Childhood Friend Role51.262.25
Drinking Engages in31.622.24
Japanese (Expatriate) Role13.182.21
Cleaning Engages in21.992.18
Sex in Water Engages in (Sexual)31.562.17
Bone Fracture Subject of13.122.16
Friend Role51.202.16
Kind Personality71.032.13
Hard Worker Personality31.542.13
Schoolmate Role21.892.08
Cardigan Clothes21.872.06
Unusual Hair Ornaments Clothes21.872.06
Watashi Personality41.262.02
Smart Personality31.462.02
Guitar Items12.892.00
Straw Hat Clothes12.892.00
Waitstaff Role21.822.00
Hidden Eyes21.811.99
Pantyhose Clothes31.421.97
School Basketball Club Member Role12.851.97
Boku Personality21.781.96
Scarf Clothes21.781.95
Feather Accessory Clothes12.811.95
Short Shorts Clothes21.771.94
Guitarist Role12.791.93
Deredere Personality21.741.92
Tsurime Eyes31.381.91
Reverse Missionary Subject of (Sexual)21.731.91
Off-The-Shoulder Sweater Clothes12.721.88
Gyaru Clothes12.691.86
Shorts Clothes21.681.84
Intake Hair21.671.84
Collar Clothes21.661.82
Debt Subject of12.621.82
Multilingual Role12.601.80
Sweater Clothes21.641.80
Pervert Personality21.631.79
Nail Polish Body21.631.79
Garter Belt Stockings Clothes21.621.78
Basketball Engages in12.541.76
Apron Clothes21.591.74
Clothing with Ribbons Clothes21.571.73
Office Lady Role12.471.71
Drawing Engages in12.461.71
Sexual Harassment Engages in12.451.70
Makeup Body21.541.69
Living Alone Role12.401.66
Maid's Dress Clothes21.511.66
Necklace Clothes21.501.65
Reverse Missionary Engages in (Sexual)12.361.63
Incest Engages in (Sexual)21.471.61
Office Worker Role12.321.61
Twin Blowjob Engages in (Sexual)21.451.59
Sidehair Hair40.981.57
Not a Virgin Role21.421.56
Hair Tie Clothes21.411.54
Sexual Harassment Subject of12.231.54
Reverse Cowgirl Engages in (Sexual)12.221.54
Spoons Engages in (Sexual)12.221.54
Virgin Sex Engages in (Sexual)50.851.52
Knee-high Socks Clothes21.381.52
Driving Engages in12.171.50
Wavy Hair21.361.49
Not Sexually Involved Engages in (Sexual)21.361.49
Singing Engages in12.131.48
Skirt Clothes21.331.47
Shopkeeper Role12.091.45
Honor Student Role12.081.44
Bow Tie Clothes12.041.42
Hazel Eyes12.041.41
Turtleneck Sweater Clothes12.041.41
Belt Clothes21.271.40
Yamato Nadeshiko Role12.001.38
Beret Clothes11.991.38
Young-adult Body50.761.37
Tomboy Personality11.961.36
Full Brother Role11.951.35
Atashi Personality11.911.32
Straight Hair30.951.31
Quickie Fix Engages in (Sexual)11.881.31
Waist Length+ Hair40.811.30
Standing Sex Subject of (Sexual)21.181.29
Boobjob Subject of (Sexual)11.861.29
Intercrural Sex Engages in (Sexual)11.851.28
Outdoor Sex Engages in (Sexual)21.161.27
Blazer Clothes11.831.27
Sitting Sex Engages in (Sexual)11.831.27
Big Breasts Body21.141.25
Flirting Engages in11.801.25
Braid Hair11.781.24
Missionary Subject of (Sexual)21.121.23
Twin Boobjob Engages in (Sexual)11.771.23
Handjob Subject of (Sexual)11.751.22
Mobile Phone Items11.751.21
Side Tail Hair11.751.21
Skirt Suit Clothes11.741.21
Missionary Engages in (Sexual)11.741.21
Ponytail Hair21.101.21
Slim Body70.581.20
Older Brother Role11.731.20
Proactive Personality11.721.19
Glasses Clothes21.081.19
Cowgirl Engages in (Sexual)11.721.19
Reserved Personality11.721.19
Quickie Fix Subject of (Sexual)21.081.19
Hoodie Clothes11.711.18
Coat Clothes11.701.18
Nipple Sucking Engages in (Sexual)11.701.18
Confident Personality11.701.18
Stoic Personality11.701.18
Boobjob Engages in (Sexual)21.071.17
Doggy Style Engages in (Sexual)11.691.17
Sex with Protagonist Only Engages in (Sexual)11.681.16
Crop Top Clothes11.671.16
Parted to Side Hair21.051.16
Spoons Subject of (Sexual)11.671.16
Cyan Eyes11.661.15
Reverse Cowgirl Subject of (Sexual)11.631.13
Maid's Headdress Clothes11.631.13
Full Sister Role11.571.09
Cunnilingus Engages in (Sexual)11.551.08
Blowjob Subject of (Sexual)11.521.06
Pendant Necklace Clothes11.521.06
Energetic Personality11.521.05
Choker Clothes11.501.04
French Kiss Engages in (Sexual)11.491.03
Doggy Style Subject of (Sexual)20.931.02
Seventh Posture Subject of (Sexual)11.461.01
Headband Clothes11.451.00
Younger Sister Role11.441.00
Suit Clothes11.441.00
Tank Top Clothes11.420.98
V Bangs Hair11.410.98
Hairpin Clothes11.400.97
Blunt Bangs Hair11.400.97
Nipple Sucking Subject of (Sexual)11.380.96
Brown Hair30.680.95
Bukkake Subject of (Sexual)11.350.93
White Hair11.330.92
Ahoge Hair11.320.91
Ribbon Tie Clothes11.250.87
Blowjob Engages in (Sexual)20.760.84
Red Eyes11.200.83
Long Hair20.750.83
School Uniform Clothes20.750.83
Ribbon Hair Tie Clothes11.190.83
Group Sex of One Male and Several Females Engages in (Sexual)11.170.81
Butterfly Subject of (Sexual)11.170.81
Handjob Engages in (Sexual)11.160.80
Shirt Clothes11.160.80
Necktie Clothes11.110.77
Tareme Eyes11.100.76
Vaginal Fingering Subject of (Sexual)11.080.75
Sitting Sex Subject of (Sexual)11.060.74
Violet Eyes11.040.72
Pale Body60.370.72
Spiky Bangs Hair11.000.69
Teen Body20.620.68
Cowgirl Subject of (Sexual)10.950.66
Blond Hair10.890.62
Black Hair10.810.56
Blue Eyes10.800.56
Short Hair10.610.42
60.000.00