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Summary

Ryou’s imouto, who was much younger than him, was becoming more and more like a woman. Before he knew it, he became sexually attracted to her and one day while playing hide-and-seek, he was unable to hold back his urges and ejaculated on her as they were hiding together in the storage shed. He felt guilty about it afterwards and left the village to live alone in the city. Several years later, he returned to his hometown after being asked by his parents to help with taking apart the storage shed where the act had been committed. In the middle of the field of early-blooming cosmos was his cute grown-up imouto Asaka. His love and desire for her, as well as his childhood friend Aki, which had stopped on that day began to move once more. “Welcome back, onii-chan. I’ve always been waiting for you.” Led by the sweet fragrance of the cosmos, it was the return of his past mistake… [From Hau~ Omochikaeri!]

Kodomo Milk Parfait
Kodomo Milk Parfait
NAN%
Tags
  • Elementary School Student Heroine
  • May-December Romance
  • Sex Involving Children
  • Twin Buttjob
  • Only Loli Heroines
Rating 6.0620 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 6.8850 Users
Shinsei Kourin Dacryon ~Tadashii Tenshi no Sodatekata~
Shinsei Kourin Dacryon ~Tadashii Tenshi no Sodatekata~
NAN%
Tags
  • Bred by Monsters
  • Prolapse
  • Cum Bath
  • Mahou Shoujo Heroine
  • Autofellatio
Rating 6.7521 Users
Kanojo to Ore no Lovely Day
Kanojo to Ore no Lovely Day
NAN%
Tags
  • Archery Club
  • Slice of Life Comedy
  • Archer Heroine
  • Painter Protagonist
  • Otaku Friend
Rating 7.0154 Users
Genjitsu ga Mietekita node Lolicon Yamemashita.
Genjitsu ga Mietekita node Lolicon Yamemashita.
NAN%
Tags
  • Lolicon Protagonist
  • Non-blood-related Father/Daughter Incest
  • Homemaker Protagonist
  • Protagonist's Non-blood-related Daughter as a Heroine
  • Divorcee Heroine
Rating 7.79166 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 7.64115 Users
Lollipop Factory
Lollipop Factory
NAN%
Tags
  • Sex Involving Food
  • Oppai Loli Heroine
  • Protagonist's Sister as a Support Character
  • Armpit Sex
  • Half-Japanese Heroine
Rating 6.8639 Users
My Dream! ~Uchi no Imouto wa xx ni Naritai Rashii~
My Dream! ~Uchi no Imouto wa xx ni Naritai Rashii~
NAN%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Siscon Protagonist
  • Unlockable Harem Ending
  • Threesome Ending
  • French Kiss
Rating 7.0036 Users
Onii-chan Daisuki!
Onii-chan Daisuki!
NAN%
Tags
  • Middle School Student Heroine
  • Highly Animated Sprites
  • Changeable Font
  • Only Loli Heroines
  • Social Networking Service
Rating 7.3890 Users
Kakurenbo ~Futari Dake no Himitsu no Jikan~
Kakurenbo ~Futari Dake no Himitsu no Jikan~
NAN%
Tags
  • Artist Protagonist
  • Heroine with Spats
  • Imouto-type Heroine
  • Straight Lolicon
  • Naizuri
Rating 7.36103 Users
Low Rise!!!
Low Rise!!!
NAN%
Tags
  • Oppai Loli Heroine
  • Idol Heroine
  • Manager Protagonist
  • Japanese Idols
  • Straight Lolicon
Rating 6.7532 Users
Imouto to Yaritai Koto no Subete "Gokun...... Nee, Nandemo Suru kara, Kore, Motto Choudai, Onii-chan"
Imouto to Yaritai Koto no Subete "Gokun...... Nee, Nandemo Suru kara, Kore, Motto Choudai, Onii-chan"
NAN%
Tags
  • Nude Filter
  • Rape Involving Drugs
  • Only Protagonist's Sisters as Heroine(s)
  • Gokkun
  • NEET Protagonist
Rating 7.2138 Users
Low na Imouto ni Succubus ga Toritsuita node Tanetsuke Yoyuu deshita.
Low na Imouto ni Succubus ga Toritsuita node Tanetsuke Yoyuu deshita.
NAN%
Tags
  • Possession
  • Succubus Heroine
  • Unlockable Sexual Content
  • Fake Choices
  • Protagonist's Younger Sister as a Heroine
Rating 6.5723 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
Manbiki Musume Momoiro Seisai - Manbiki Shita Imouto ni Kichiku Oshioki!!
Manbiki Musume Momoiro Seisai - Manbiki Shita Imouto ni Kichiku Oshioki!!
NAN%
Tags
  • Only Protagonist's Relatives as Heroine(s)
  • Protagonist's Full Sister as a Heroine
  • Oyakodon
  • Siscon Protagonist
  • Blood-related Brother/Sister Incest
Rating 6.7427 Users
Amaenbo ~Futari dake no Himitsu no Asobi~
Amaenbo ~Futari dake no Himitsu no Asobi~
NAN%
Tags
  • System Time Events
  • Lolicon Protagonist
  • Amusement Park
  • Ejaculation Forewarner
  • Sex Involving Children
Rating 7.3565 Users
Lovecha ~Tsumasakidachi de, Hitomi o Tojite~
Lovecha ~Tsumasakidachi de, Hitomi o Tojite~
NAN%
Tags
  • Elementary School
  • Elementary School Student Heroine
  • Only Loli Heroines
  • Student-Teacher Romance
  • Armpit Licking
Rating 6.2225 Users
Low Spec!? ~Ore to Toshishita Kanojo to Seikyouiku!~
Low Spec!? ~Ore to Toshishita Kanojo to Seikyouiku!~
NAN%
Tags
  • Lolicon Protagonist
  • Elementary School Student Heroine
  • Pillow Talk
  • Twitter
  • Hero(ine) Selection
Rating 7.0474 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
  • Modern Tsundere Heroine
  • Harem Ending
Rating 6.6527 Users
Renran Spirichu
Renran Spirichu
NAN%
Tags
  • Student Council President Protagonist
  • Breast Expansion
  • Ghost Support Character
  • Heroine with Chinese Dress
  • Promiscuity
Rating 7.2043 Users
Natsu Ecchi 2 ~Futago to Inaka no Natsuyasumi~
Natsu Ecchi 2 ~Futago to Inaka no Natsuyasumi~
NAN%
Tags
  • Blood-related Uncle/Niece Incest
  • Unnamed Protagonist
  • Protagonist's Niece as a Heroine
  • Oppai Loli Heroine
  • Sister/Sister Incest
Rating 5.4828 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
Dokusenjima "Anta o Suki ni Naru Kurai Nara Haramasareta Hou ga Mashi yo!"
Dokusenjima "Anta o Suki ni Naru Kurai Nara Haramasareta Hou ga Mashi yo!"
NAN%
Tags
  • Stuck-in-Wall Sex
  • Mind Control
  • Reverse Piledriver
  • Wealthy Protagonist
  • Suction on Nipples
Rating 7.0837 Users
Onii-chan, Migite no Shiyou o Kinshi Shimasu! 2
Onii-chan, Migite no Shiyou o Kinshi Shimasu! 2
NAN%
Tags
  • Siscon Protagonist
  • Beach
  • Only Protagonist's Sisters as Heroine(s)
  • Protagonist's Full Sister as a Heroine
  • Summer
Rating 5.9427 Users
Yuki no Yoru, Ore wa Imouto o Hadaka ni Suru.
Yuki no Yoru, Ore wa Imouto o Hadaka ni Suru.
46%
Tags
  • Cousin Romance
  • Protagonist's Sister as a Heroine
  • Fart Fetishism
  • Consensual Phone Sex
  • Protagonist's Cousin as a Heroine
Rating 7.0136 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!?~
35%
Tags
  • Family Life Comedy
  • Live Sexual Broadcast
  • Bisexual Heroine
  • Only Younger Heroines
  • Protagonist's Full Sister as a Heroine
Rating 6.3839 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!~
32%
Tags
  • Family Life Comedy
  • Unavoidable Harem Ending
  • Polyamory
  • Triple Footjob
  • Boke Heroine
Rating 6.8424 Users
Low na Imouto ni Succubus ga Toritsuita node Tanetsuke Yoyuu deshita.
Low na Imouto ni Succubus ga Toritsuita node Tanetsuke Yoyuu deshita.
29%
Tags
  • Possession
  • Succubus Heroine
  • Unlockable Sexual Content
  • Fake Choices
  • Protagonist's Younger Sister as a Heroine
Rating 6.5723 Users
Imouto to Yaritai Koto no Subete "Gokun...... Nee, Nandemo Suru kara, Kore, Motto Choudai, Onii-chan"
Imouto to Yaritai Koto no Subete "Gokun...... Nee, Nandemo Suru kara, Kore, Motto Choudai, Onii-chan"
28%
Tags
  • Nude Filter
  • Rape Involving Drugs
  • Only Protagonist's Sisters as Heroine(s)
  • Gokkun
  • NEET Protagonist
Rating 7.2138 Users
Kakurenbo ~Futari Dake no Himitsu no Jikan~
Kakurenbo ~Futari Dake no Himitsu no Jikan~
27%
Tags
  • Artist Protagonist
  • Heroine with Spats
  • Imouto-type Heroine
  • Straight Lolicon
  • Naizuri
Rating 7.36103 Users
Low Rise!!!
Low Rise!!!
27%
Tags
  • Oppai Loli Heroine
  • Idol Heroine
  • Manager Protagonist
  • Japanese Idols
  • Straight Lolicon
Rating 6.7532 Users
My Dream! ~Uchi no Imouto wa xx ni Naritai Rashii~
My Dream! ~Uchi no Imouto wa xx ni Naritai Rashii~
27%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Siscon Protagonist
  • Unlockable Harem Ending
  • Threesome Ending
  • French Kiss
Rating 7.0036 Users
Onii-chan Daisuki!
Onii-chan Daisuki!
27%
Tags
  • Middle School Student Heroine
  • Highly Animated Sprites
  • Changeable Font
  • Only Loli Heroines
  • Social Networking Service
Rating 7.3890 Users
Amaenbo ~Futari dake no Himitsu no Asobi~
Amaenbo ~Futari dake no Himitsu no Asobi~
27%
Tags
  • System Time Events
  • Lolicon Protagonist
  • Amusement Park
  • Ejaculation Forewarner
  • Sex Involving Children
Rating 7.3565 Users
Low Spec!? ~Ore to Toshishita Kanojo to Seikyouiku!~
Low Spec!? ~Ore to Toshishita Kanojo to Seikyouiku!~
26%
Tags
  • Lolicon Protagonist
  • Elementary School Student Heroine
  • Pillow Talk
  • Twitter
  • Hero(ine) Selection
Rating 7.0474 Users
Renran Spirichu
Renran Spirichu
26%
Tags
  • Student Council President Protagonist
  • Breast Expansion
  • Ghost Support Character
  • Heroine with Chinese Dress
  • Promiscuity
Rating 7.2043 Users
Isekai Fuuzoku, Hajimemashita!? ~Tensei Shitara Harem Seikatsu ga Mattemashita~
Isekai Fuuzoku, Hajimemashita!? ~Tensei Shitara Harem Seikatsu ga Mattemashita~
26%
Tags
  • Undead Heroine
  • Dragon Heroine
  • Kneepit Sex
  • Heroine with Wings
  • Angel Heroine
Rating 6.6645 Users
Onii-chan, Migite no Shiyou o Kinshi Shimasu! 2
Onii-chan, Migite no Shiyou o Kinshi Shimasu! 2
25%
Tags
  • Siscon Protagonist
  • Beach
  • Only Protagonist's Sisters as Heroine(s)
  • Protagonist's Full Sister as a Heroine
  • Summer
Rating 5.9427 Users
Koboreochiru Shoujo-tachi ~Papakatsu JC Kairaku Ochi no Kiroku~
Koboreochiru Shoujo-tachi ~Papakatsu JC Kairaku Ochi no Kiroku~
25%
Tags
  • Middle School Student Protagonist
  • Prostitute Protagonist
  • Sex Involving Prostitution
  • Middle School Student Heroine
  • Lolicon
Rating 6.7144 Users
Shoujo Kyouiku
Shoujo Kyouiku
25%
Tags
  • Ojicon
  • Sex Involving Children
  • Protagonist's Blood-related Sister as a Heroine
  • Chuunibyou Heroine
  • Mischievous Heroine
Rating 7.4095 Users
Mai Yome ~My Yome~
Mai Yome ~My Yome~
24%
Tags
  • Sex Involving Children
  • Only Younger Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Only Loli Heroines
  • Deredere Heroine
Rating 5.6020 Users
Onii-chan, Kiss no Junbi wa Mada Desu ka? Ecchi no Junbi mo Mada Desu ka?
Onii-chan, Kiss no Junbi wa Mada Desu ka? Ecchi no Junbi mo Mada Desu ka?
24%
Tags
  • Pillow Talk
  • Only Protagonist's Sisters as Heroine(s)
  • Protagonist's Full Sister as a Heroine
  • Heroine with Small Breasts (Non-Loli)
  • Elementary School Student Heroine
Rating 7.49124 Users
Ero Mangaka-san to Binbou Shimai
Ero Mangaka-san to Binbou Shimai
24%
Tags
  • Mangaka Protagonist
  • Poor Heroine
  • Shimaidon
  • Protagonist's Boss as a Heroine
  • Sprite Viewer
Rating 7.2940 Users
Chibi Pire! ~Kyuuketsu Shimai to Ecchi de Bitch na Dousei Seikatsu~
Chibi Pire! ~Kyuuketsu Shimai to Ecchi de Bitch na Dousei Seikatsu~
23%
Tags
  • Vampire Heroine
  • Only Loli Heroines
  • Hero(ine) Selection
  • Straight Lolicon
  • Heroine with Visible Panties
Rating 7.0788 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
Shinsou Parallel Paradox -Heikou Sekai no Risoukyou-
Shinsou Parallel Paradox -Heikou Sekai no Risoukyou-
23%
Tags
  • Alternate Dimensions
  • Stuck-in-Wall Sex
  • Tailjob
  • Ejaculation Forewarner
  • Background Moans
Rating 6.7159 Users
Nyanto Suteki na Natsuiro Days
Nyanto Suteki na Natsuiro Days
23%
Tags
  • Resort
  • Brocon Support Character
  • Catgirl Heroine
  • Unavoidable Harem Ending
  • Protagonist's Sister as a Support Character
Rating 6.7927 Users
Nemureru Sono no Shoujo-tachi
Nemureru Sono no Shoujo-tachi
23%
Tags
  • Heroine with Crotchless Clothing
  • Panchira
  • Unlockable Hero(ine)
  • Pregnancy Ending
  • Succubus Heroine
Rating 6.8838 Users

Imouto o Kegashita Kioku 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 (64 total)

NameScoreImportanceWeight
Lolicon3.001.735.19
Elementary School Student Heroine2.002.424.83
Middle School Student Heroine2.002.374.74
Straight Lolicon3.001.504.51
Heroine with Tan Lines2.002.124.25
Nursing Handjob2.002.124.24
Siscon Protagonist2.002.054.11
Mirror Sex2.002.034.07
Female Protagonist for a Short Time2.002.034.06
Cousin Incest2.002.014.02
Inbreeding2.001.983.97
Sex Involving Children2.001.953.90
Protagonist's Cousin as a Heroine2.001.883.77
Protagonist's Full Sister as a Heroine2.001.873.75
Colored Texts2.001.673.34
Urination Fetish2.001.663.32
Condoms2.001.653.31
White Haired Heroine2.001.633.26
Brocon Heroine2.001.613.23
Discreet Sex2.001.603.21
Threesome2.001.603.21
Brief NVL Scenes2.001.573.15
Fart Fetishism1.003.133.13
Pregnancy2.001.523.05
Fingering2.001.523.05
Handjob2.001.503.01
Blood-related Brother/Sister Incest2.001.492.97
Bad Endings with Story2.001.402.80
Anal Toys2.001.392.78
More Than Seven Endings2.001.332.66
Boobjob2.001.322.64
Twin Blowjob2.001.292.58
Rape2.001.232.45
Bad Ending(s)2.001.202.39
Bathroom Sex2.001.192.38
Loli Heroine2.001.192.38
Vibrators2.001.152.30
Lesbian Sex2.001.152.30
Blowjob2.001.112.23
Quickie Fix Position2.001.112.23
Evil Route1.002.222.22
Bondage2.001.112.21
Only Virgin Heroines2.001.082.17
Sixty-nine2.001.072.14
Standing Sex2.001.062.11
Sitting Sex2.001.062.11
Naked Sprites2.001.052.11
Panchira1.002.062.06
Adult Protagonist2.001.032.05
Outdoor Sex2.001.001.99
Missionary Position2.000.941.88
Cunnilingus2.000.931.86
Group Sex of One Male and Several Females2.000.921.83
Cowgirl2.000.841.68
Doggy Style2.000.801.61
Defloration2.000.761.52
Multiple Endings2.000.671.34
Anal Penetration1.001.321.32
Nukige2.000.651.30
Sexual Content2.000.631.26
Male Protagonist2.000.300.61
Only Loli Heroines0.331.770.58
ADV2.000.150.29
2.000.000.00

Traits (64 total)

NameCharactersImportanceWeight
Kindergarten Hat Clothes13.822.65
Sixth Grader Role13.452.39
Sports Shoes Clothes31.722.39
School Sports Club Assistant Role13.392.35
Seventh Grader Role13.382.34
Eighth Grader Role13.332.31
Small Breasts Body31.672.31
Cousin Role21.872.06
Hairpin Clothes31.401.94
School Athletic Club Member Role12.621.82
Sister Complex Personality12.381.65
Stuffed Toy Items12.361.64
Braided Crown Hair12.361.64
Sailor School Uniform Clothes21.481.62
Incest Engages in (Sexual)21.471.61
Swimsuit Clothes12.271.57
Hair Tie Clothes21.411.54
Pleated Skirt Clothes21.401.54
Knee-high Socks Clothes21.381.52
Sundress Clothes12.141.48
Old Type School Swimsuit Clothes12.091.45
Honor Student Role12.081.44
Brother Complex Personality12.061.43
Childhood Friend Role21.261.38
Sandals Clothes11.941.34
Friend Role21.201.32
Part-time Worker Role11.901.32
Straight Hair30.951.31
Twin Tails Hair21.131.24
Cheerful Personality11.741.21
Outgoing Personality11.741.20
Older Brother Role11.731.20
Sport Bloomers Clothes11.721.19
Cowgirl Engages in (Sexual)11.721.19
Virgin Sex Engages in (Sexual)30.851.18
Doggy Style Engages in (Sexual)11.691.17
No Bangs Hair11.661.15
Ribbon Hair Accessory Clothes11.651.15
Kouhai Role11.631.13
Senpai Role11.611.12
Spiky Bangs Hair21.001.10
Full Sister Role11.571.09
Sidehair Hair20.981.07
Hard Worker Personality11.541.07
Energetic Personality11.521.05
Group Sex Engages in (Sexual)11.501.04
Student Role11.491.03
Daughter Role11.461.01
Teasing Engages in11.451.00
Younger Sister Role11.441.00
Kid Body11.370.95
White Hair11.330.92
Red Eyes11.200.83
Blue Hair11.190.83
Parted to Side Hair11.050.73
Amber Eyes11.030.71
Kind Personality11.030.71
Green Eyes11.020.70
Teen Body20.620.68
Cowgirl Subject of (Sexual)10.950.66
Doggy Style Subject of (Sexual)10.930.64
Waist Length+ Hair10.810.56
Black Hair10.810.56
Long Hair10.750.52