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Summary

The parents passed away while he was still young. But he had a little sister he held very close. Sadly to say, it would not remain that way. And then the time came for them to separate. The brother lamented not being able to protect his sister as he'd resolved to. Their final promise and farewell. "When we become adults, if anything bad happens you can count on your brother! I'll help you no matter what!" "Alright, promise..." After 10 years, the brother sinks into thought, wondering how she's doing. On the way home, he turns a corner and comes across that girl. Astonished, she looks at the boy, who doesn't quite know how to react. "Onii-chan...?" The boy takes his sister back home for the time being, as the rain has began pouring. Did he worry about her all the time? Was he fine with being apart? Hearing all of his little sister's worries, he resolves once again to protect her. And so they step forward. To make memories together, making up for every minute they were apart. [Translated from the official site]

Tsun DraCsuicide ~Kyuuseishu wa Minimum Bishoujo Kyuuketsuki!?~
Tsun DraCsuicide ~Kyuuseishu wa Minimum Bishoujo Kyuuketsuki!?~
NAN%
Tags
  • Mayadere Heroine
  • Vampire Heroine
  • Protagonist as the Only Male
  • Arrogant Heroine
  • Sex Under the Necessity
Rating 6.8825 Users
Nekotsuku, Sakura.
Nekotsuku, Sakura.
NAN%
Tags
  • Possession
  • Slice of Life Comedy
  • Tailjob
  • Heroine with Flat Chest (Non-Loli)
  • Armpit Sex
Rating 7.3851 Users
Unless Terminalia
Unless Terminalia
NAN%
Tags
  • Jump to Next Scene
  • Jump to Prior Scene
  • Jump to Prior Choices
  • Invisibility
  • Jump to Next Choice
Rating 7.3171 Users
Dainikai Imouto Senbatsu☆Sousenkyo ~366ninme no Imouto Icha Love Gojitsudan~
Dainikai Imouto Senbatsu☆Sousenkyo ~366ninme no Imouto Icha Love Gojitsudan~
NAN%
Tags
  • Protagonist's Half-sister as a Heroine
  • High Amount of Special Effects
  • Incest
  • Protagonist's Sister as a Heroine
  • Protagonist's Blood-related Sister as a Heroine
Rating 6.7231 Users
Kagura Reimeiki ~Natsu no Shou~
Kagura Reimeiki ~Natsu no Shou~
NAN%
Tags
  • Miko Protagonist
  • Roguelike
  • Rape on Defeat
  • Loli Protagonist
  • Kemonomimi Protagonist
Rating 5.7431 Users
Onii-chan Teacher ~Himitsu no Jugyou o Kibou Shimasu!~
Onii-chan Teacher ~Himitsu no Jugyou o Kibou Shimasu!~
NAN%
Tags
  • Braless Heroine
  • Heroine with Flat Chest (Non-Loli)
  • Sexually Oblivious Heroine
  • Only Blood-related Heroines
  • Only Protagonist's Sisters as Heroine(s)
Rating 6.8951 Users
Kanae to Meguri to no Sonogo ga Icha Love Sugite Yabai.
Kanae to Meguri to no Sonogo ga Icha Love Sugite Yabai.
NAN%
Tags
  • Group Sex
  • Threesome Ending
  • Heroine with Heterochromia
  • Hetare Protagonist
  • Balls Sucking
Rating 7.2171 Users
Pure Marriage ~Akai Ito Monogatari - Harem Hen~
Pure Marriage ~Akai Ito Monogatari - Harem Hen~
NAN%
Tags
  • Polygamy
  • Wedding
  • Protagonist's Sister as a Heroine
  • Harem Ending
  • Modern Tsundere Heroine
Rating 6.6728 Users
Natsuiro Kokoro Log ~Happy Summer~
Natsuiro Kokoro Log ~Happy Summer~
NAN%
Tags
  • Virtual Reality
  • Protagonist's Sister as a Heroine
  • Half-Japanese Heroine
  • Brother/Sister Romance
  • Legwear Footjob
Rating 7.4139 Users
Nyanto Suteki na Natsuiro Days
Nyanto Suteki na Natsuiro Days
NAN%
Tags
  • Resort
  • Brocon Support Character
  • Catgirl Heroine
  • Unavoidable Harem Ending
  • Protagonist's Sister as a Support Character
Rating 6.7927 Users
Sono Hana ga Saitara, Mata Boku wa Kimi ni Deau
Sono Hana ga Saitara, Mata Boku wa Kimi ni Deau
NAN%
Tags
  • Pure Love Story
  • Transfer Student Protagonist
  • Mage Heroine
  • Legwear Footjob
  • Single Footjob
Rating 6.8234 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 6.4820 Users
Ero Imo Hurricane! ~Idol no Imouto ga Erokute Erokute Ore no Risei ni Arashi no Yokan!?~
Ero Imo Hurricane! ~Idol no Imouto ga Erokute Erokute Ore no Risei ni Arashi no Yokan!?~
NAN%
Tags
  • Family Life Comedy
  • Live Sexual Broadcast
  • Bisexual Heroine
  • Only Younger Heroines
  • Protagonist's Full Sister as a Heroine
Rating 6.2739 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 6.7125 Users
Natsu Ecchi ~Mei to Inaka no Natsuyasumi~
Natsu Ecchi ~Mei to Inaka no Natsuyasumi~
NAN%
Tags
  • Blood-related Uncle/Niece Incest
  • Countryside
  • Protagonist's Niece as a Heroine
  • Summer
  • Straight Lolicon
Rating 5.8930 Users
Onii-chan Chou Suki 99 Jikan Ecchi Shiyo!
Onii-chan Chou Suki 99 Jikan Ecchi Shiyo!
NAN%
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
QUINTUPLE☆SPLASH
QUINTUPLE☆SPLASH
NAN%
Tags
  • Former All-girls School
  • Swimming Club
  • Brother/Sister Romance
  • Protagonist's Full Sister as a Heroine
  • Nude Filter
Rating 7.0845 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
Namepu!
Namepu!
NAN%
Tags
  • Single Legjob
  • Protagonist's Younger Sister as a Heroine
  • Protagonist's Full Sister as a Heroine
  • Kneepit Sex
  • Forbidden Love
Rating 7.2559 Users
Onii-chan, Asa made Zutto Gyutte Shite! Yoru Made Motto Ecchi Shite!
Onii-chan, Asa made Zutto Gyutte Shite! Yoru Made Motto Ecchi Shite!
NAN%
Tags
  • Siscon Protagonist
  • The Holiday Season
  • Only Protagonist's Sisters as Heroine(s)
  • Only Younger Heroines
  • Tickle Torture
Rating 7.62116 Users
SPIRAL!!
SPIRAL!!
NAN%
Tags
  • Spy Protagonist
  • Officer Protagonist
  • Occult Club
  • Trap Protagonist
  • Near Future
Rating 6.9458 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 6.9749 Users
Himekoi * Sucreine!
Himekoi * Sucreine!
NAN%
Tags
  • Hime Heroine
  • Princess Heroine
  • Maid Support Character
  • Emotionless Heroine
  • Protagonist's Sister as a Support Character
Rating 6.8020 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 6.8825 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!~
46%
Tags
  • Only Blood-related Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Unnamed Protagonist
  • Twin Footjob
  • Oppai Loli Heroine
Rating 6.3720 Users
Low na Imouto ni Succubus ga Toritsuita node Tanetsuke Yoyuu deshita.
Low na Imouto ni Succubus ga Toritsuita node Tanetsuke Yoyuu deshita.
45%
Tags
  • Possession
  • Succubus Heroine
  • Unlockable Sexual Content
  • Fake Choices
  • Protagonist's Younger Sister as a Heroine
Rating 6.6024 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!~
39%
Tags
  • Family Life Comedy
  • Unavoidable Harem Ending
  • Polyamory
  • Triple Footjob
  • Boke Heroine
Rating 6.7125 Users
Ero Imo Hurricane! ~Idol no Imouto ga Erokute Erokute Ore no Risei ni Arashi no Yokan!?~
Ero Imo Hurricane! ~Idol no Imouto ga Erokute Erokute Ore no Risei ni Arashi no Yokan!?~
39%
Tags
  • Family Life Comedy
  • Live Sexual Broadcast
  • Bisexual Heroine
  • Only Younger Heroines
  • Protagonist's Full Sister as a Heroine
Rating 6.2739 Users
Ayakashi Yuukaku ~Karakuri Jochuu no Mukashigatari~
Ayakashi Yuukaku ~Karakuri Jochuu no Mukashigatari~
34%
Tags
  • Living Doll Heroine
  • Heroine with Kimono
  • Kinetic Novel
  • Only a Single Heroine
  • Sexual Content
Rating 6.4820 Users
Nyanto Suteki na Natsuiro Days
Nyanto Suteki na Natsuiro Days
34%
Tags
  • Resort
  • Brocon Support Character
  • Catgirl Heroine
  • Unavoidable Harem Ending
  • Protagonist's Sister as a Support Character
Rating 6.7927 Users
Sono Hana ga Saitara, Mata Boku wa Kimi ni Deau
Sono Hana ga Saitara, Mata Boku wa Kimi ni Deau
33%
Tags
  • Pure Love Story
  • Transfer Student Protagonist
  • Mage Heroine
  • Legwear Footjob
  • Single Footjob
Rating 6.8234 Users
Pure Marriage ~Akai Ito Monogatari - Harem Hen~
Pure Marriage ~Akai Ito Monogatari - Harem Hen~
33%
Tags
  • Polygamy
  • Wedding
  • Protagonist's Sister as a Heroine
  • Harem Ending
  • Modern Tsundere Heroine
Rating 6.6728 Users
Natsuiro Kokoro Log ~Happy Summer~
Natsuiro Kokoro Log ~Happy Summer~
32%
Tags
  • Virtual Reality
  • Protagonist's Sister as a Heroine
  • Half-Japanese Heroine
  • Brother/Sister Romance
  • Legwear Footjob
Rating 7.4139 Users
Onii-chan Chou Suki 99 Jikan Ecchi Shiyo!
Onii-chan Chou Suki 99 Jikan Ecchi Shiyo!
32%
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
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~
31%
Tags
  • Foolish Protagonist
  • Stockings
  • No Common Sense Heroine
  • Ojousama Heroine
  • Nursing Handjob
Rating 7.3021 Users
Onii-chan, Asa made Zutto Gyutte Shite! Yoru Made Motto Ecchi Shite!
Onii-chan, Asa made Zutto Gyutte Shite! Yoru Made Motto Ecchi Shite!
31%
Tags
  • Siscon Protagonist
  • The Holiday Season
  • Only Protagonist's Sisters as Heroine(s)
  • Only Younger Heroines
  • Tickle Torture
Rating 7.62116 Users
Uchi no Aruji wa Youkai no Joushiki o Shiranai
Uchi no Aruji wa Youkai no Joushiki o Shiranai
31%
Tags
  • Oni Heroine
  • Butler Protagonist
  • Youkai
  • Succubus Heroine
  • Western-style Manor
Rating 6.9749 Users
Iegami Nyoubou ~Nanashi Nekomata wa KamiTuber~
Iegami Nyoubou ~Nanashi Nekomata wa KamiTuber~
31%
Tags
  • Lazy Heroine
  • Catgirl Heroine
  • Tailjob
  • Armpit Sex
  • Heroine with Kimono
Rating 6.8825 Users
Animal☆Panic
Animal☆Panic
30%
Tags
  • Kemonomimi
  • Class President Heroine
  • Rabbits
  • Mahou Shoujo Heroine
  • Fairies
Rating 7.3755 Users
Asa Okitara Bishoujo ni Natteta Boku ni Onegai ga Arundatte? Shouganai nyaa.. Ii yo.
Asa Okitara Bishoujo ni Natteta Boku ni Onegai ga Arundatte? Shouganai nyaa.. Ii yo.
30%
Tags
  • Gender Bending
  • Genderbent Sex
  • Sex Change
  • Loli Protagonist
  • Sprite Viewer
Rating 6.5841 Users
AI Love: Koisuru Otome wa Kikaijikake
AI Love: Koisuru Otome wa Kikaijikake
30%
Tags
  • Technician Protagonist
  • Robot Heroine
  • Scientist Protagonist
  • AI Heroine
  • Under the Same Roof
Rating 7.1032 Users
Adebana Sacrament -Seinaru Miwaza to Akuryoutsuki no Shoujo-tachi-
Adebana Sacrament -Seinaru Miwaza to Akuryoutsuki no Shoujo-tachi-
29%
Tags
  • Possession
  • Student-Teacher Romance
  • Bleep Censor
  • Demon Heroine
  • Student Council President Heroine
Rating 6.4822 Users
Renran Spirichu
Renran Spirichu
29%
Tags
  • Student Council President Protagonist
  • Breast Expansion
  • Ghost Support Character
  • Heroine with Chinese Dress
  • Promiscuity
Rating 7.2744 Users
Pure Marriage ~Akai Ito Monogatari - Sakura Hen~
Pure Marriage ~Akai Ito Monogatari - Sakura Hen~
29%
Tags
  • Protagonist's Wife as a Heroine
  • Childhood Friend Support Character
  • Wedding
  • Protagonist's Full Sister as a Heroine
  • Blood-related Brother/Sister Incest
Rating 6.5223 Users
Natsu Ecchi 2 ~Futago to Inaka no Natsuyasumi~
Natsu Ecchi 2 ~Futago to Inaka no Natsuyasumi~
28%
Tags
  • Blood-related Uncle/Niece Incest
  • Unnamed Protagonist
  • Protagonist's Niece as a Heroine
  • Oppai Loli Heroine
  • Sister/Sister Incest
Rating 5.4828 Users
Tenpure!!
Tenpure!!
28%
Tags
  • Talking Animal
  • Emotionless Heroine
  • Class President Heroine
  • Panchira
  • Heroine with Intake Hairstyle
Rating 7.0669 Users
Love Commu
Love Commu
28%
Tags
  • May-December Romance
  • Ojousama Heroine
  • Protagonist's Sister as a Support Character
  • All-girls School
  • Teacher Protagonist
Rating 7.3740 Users
Shinsei Kourin Dacryon ~Tadashii Tenshi no Sodatekata~
Shinsei Kourin Dacryon ~Tadashii Tenshi no Sodatekata~
28%
Tags
  • Bred by Monsters
  • Prolapse
  • Cum Bath
  • Mahou Shoujo Heroine
  • Autofellatio
Rating 6.6521 Users

shin-neko ~Saikai Shita Imouto to no Arata na Kankei~ 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 (11 total)

NameScoreImportanceWeight
Straight Lolicon3.001.504.51
Only Blood-related Heroines2.002.084.17
Only Protagonist's Sisters as Heroine(s)2.001.993.98
Only Younger Heroines2.001.943.88
Only Loli Heroines2.001.783.56
Brocon Heroine2.001.613.22
Panchira1.002.062.06
Only a Single Heroine2.001.012.03
High School Student Heroine2.000.851.69
Male Protagonist2.000.300.60
ADV2.000.140.29

Traits (41 total)

NameCharactersImportanceWeight
Domestic Partner Role22.082.29
No Sense of Direction Personality13.282.27
Orphan Role21.711.87
Non-blood-related Son Role12.491.72
Incest Engages in (Sexual)21.471.61
No Name Role12.101.45
Brother Complex Personality12.061.43
Optimist Personality12.031.41
Beret Clothes12.001.38
Cleaning Engages in11.991.38
Full Brother Role11.951.35
Cardigan Clothes11.871.30
Younger Appearance Body11.821.26
Older Brother Role11.731.20
Cyan Eyes11.671.15
Small Breasts Body11.651.15
University Student Role11.591.10
Clothing with Ribbons Clothes11.581.10
Ore Personality11.581.09
Full Sister Role11.561.08
Pissing Engages in (Sexual)11.471.02
Younger Sister Role11.451.00
Hairpin Clothes11.400.97
Blunt Bangs Hair11.400.97
Kid Body11.370.95
White Hair11.330.92
Ribbon Tie Clothes11.250.87
Violet Hair11.200.83
Ribbon Hair Tie Clothes11.190.83
Twin Tails Hair11.130.78
Miniskirt Clothes11.060.74
Kind Personality11.030.71
Sidehair Hair10.980.68
Slim Body20.580.63
High School Student Role10.850.59
Waist Length+ Hair10.810.56
Black Hair10.810.56
Young-adult Body10.760.53
Short Hair10.610.42
Pale Body20.370.40
20.000.00