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Summary

Yuu has just started his sophomore year but his cousin, Rin, suddenly comes to his school to work as a trainee teacher. Since they haven't seen each other for a long time and Rin has become quite beautiful, he starts to see her as a woman. However, she still treats him like a younger brother. One day, he accidently picks up Rin's underwear and is discoverd by her. Surprisingly, she tells him that she would help him. And so, his erotic life guided by her begins. [Translated from Official Site]

Nee-chan, Mou Dechau yo! ~In Ane wa Ore no Ai Gangu~
Nee-chan, Mou Dechau yo! ~In Ane wa Ore no Ai Gangu~
NAN%
Tags
  • Protagonist's Older Sister as a Heroine
  • Protagonist's Full Sister as a Heroine
  • Inbreeding
  • Pubic Hair Option
  • Only Older Heroines
Rating 6.4347 Users
Tonari no Sanshimai-san ga Totsuide Kimashita!?
Tonari no Sanshimai-san ga Totsuide Kimashita!?
NAN%
Tags
  • Shimaidon
  • Salaryman Protagonist
  • Non-twin Heroine Sisters
  • Healer Heroine
  • Heroine from a Different World
Rating 6.9525 Users
Fudeoroshi Mama ~Afureru Hakudaku & Milk~
Fudeoroshi Mama ~Afureru Hakudaku & Milk~
NAN%
Tags
  • Obacon
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Only Older Heroines
  • Widow Heroine
Rating 5.7522 Users
Netorare Sankaku Kankei ~Hatsukoi no Osananajimi ga Sefure ni Sareta~
Netorare Sankaku Kankei ~Hatsukoi no Osananajimi ga Sefure ni Sareta~
NAN%
Tags
  • Netorare
  • Heroine in Relationship with Other(s)
  • Drunk Sex
  • Late Branching Plot
  • Waitress Heroine
Rating 6.2728 Users
Kon
Kon'ya mo Aitsu ni Dakareru Kanojo - Kairaku ni Oborete Iku Ai Suru Kanojo Miori
NAN%
Tags
  • Dream
  • Promiscuous Heroine
  • Heroine Having Sex with Others
  • Netorare
  • Flashback
Rating 5.7623 Users
Osananajimi ga Chichioya to Dekiteita Ken ni Tsuite ~Oyaji kara no Shuuchi Netori Choukyou~
Osananajimi ga Chichioya to Dekiteita Ken ni Tsuite ~Oyaji kara no Shuuchi Netori Choukyou~
NAN%
Tags
  • Heroine in Relationship with Other(s)
  • Blackmail
  • Netori
  • Remote-controlled Vibrator
  • Impregnation
Rating 6.5725 Users
Isekai Monmusu Sensation - Monmusu Sensei to Manabu H na Renai Gaku
Isekai Monmusu Sensation - Monmusu Sensei to Manabu H na Renai Gaku
NAN%
Tags
  • Doggirl Heroine
  • Rimming Handjob
  • Dragon Heroine
  • Tailjob
  • Group Sex with Clones
Rating 6.9633 Users
Hitozuma Zakari no Seishidou
Hitozuma Zakari no Seishidou
NAN%
Tags
  • Heroine with Children
  • Married Heroine
  • Teacher Heroine
  • Intercrural Sex
  • Big Breast Sizes Heroine
Rating 5.7818 Users
Zutto Mae Kara Joshi Deshita
Zutto Mae Kara Joshi Deshita
NAN%
Tags
  • Protagonist as the Only Male
  • High School
  • Protagonist's Childhood Friend as a Heroine
  • Shy Heroine
  • Sex with Protagonist Only
Rating 6.9530 Users
Tsuma ga Netorare Arbeit ~Charao no Kyokon ni Haiboku Shita Yome~
Tsuma ga Netorare Arbeit ~Charao no Kyokon ni Haiboku Shita Yome~
NAN%
Tags
  • Sex in Karaoke Box
  • Netorare
  • Married Heroine
  • Waitress Heroine
  • Short Sexual Scenes
Rating 5.6220 Users
Aerial Life
Aerial Life
NAN%
Tags
  • Gaming
  • Confinement in a Simulated Reality
  • Virtual Reality
  • Gamer Heroine
  • Protagonist's Kouhai as a Heroine
Rating 6.2923 Users
Tonari ni Kanojo no Iru Shiawase ~Curious Queen~
Tonari ni Kanojo no Iru Shiawase ~Curious Queen~
NAN%
Tags
  • Naked Sprites
  • Only a Single Heroine
  • High School Student Heroine
  • Heroine with Big Breasts
  • Sexual Content
Rating 6.0825 Users
Aka-chan Hoshii na ~Kyou kara Hajimaru Love Love Ecchi~
Aka-chan Hoshii na ~Kyou kara Hajimaru Love Love Ecchi~
NAN%
Tags
  • Heroine with Baby Complex
  • Pure Love Story
  • Cousin Incest
  • Only Protagonist's Relatives as Heroine(s)
  • Protagonist's Wife as a Heroine
Rating 6.7921 Users
Iegami Nyoubou ~Zannen Bijin na Byakko to Dousei Hajimemashita.~
Iegami Nyoubou ~Zannen Bijin na Byakko to Dousei Hajimemashita.~
NAN%
Tags
  • Kitsune Heroine
  • Goddess Heroine
  • Kemonomimi Heroine
  • White Haired Heroine
  • Intercrural Sex
Rating 6.4215 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 7.0333 Users
Torotoro Ricchi ~Nee-chan to Sono Tomodachi to Boku.~
Torotoro Ricchi ~Nee-chan to Sono Tomodachi to Boku.~
NAN%
Tags
  • Straight Shotacon
  • Background Moans
  • Nursing Handjob
  • Only Older Heroines
  • Gyaru Heroine
Rating 6.6620 Users
H de Hajimaru Share House
H de Hajimaru Share House
NAN%
Tags
  • Share House
  • Discreet Sex
  • Homecoming
  • White Haired Protagonist
  • Gamer Heroine
Rating 6.8558 Users
Momojiri Instructor Netori Lesson ~Kyouei Mizugi de Ero Zanmai~
Momojiri Instructor Netori Lesson ~Kyouei Mizugi de Ero Zanmai~
NAN%
Tags
  • Chubby Protagonist
  • Coach Heroine
  • Heroine in Relationship with Other(s)
  • Swimming Club
  • Netori
Rating 6.4721 Users
Gyaru Shojo!?
Gyaru Shojo!?
NAN%
Tags
  • Gyaru Heroine
  • Narrating Others' Thoughts
  • Prostitute Heroine
  • Heroine with Beauty Mark
  • Promiscuous Heroine
Rating 6.0119 Users
Nyotai-ka Shitara Shouta na Otouto ga Hatsujou Shisugite Yabai! ~Hitamuki ni Motomerare Makuru Doukyo Seikatsu ga Yosugite Kokoro made Onee-chan ni Nacchau!?~
Nyotai-ka Shitara Shouta na Otouto ga Hatsujou Shisugite Yabai! ~Hitamuki ni Motomerare Makuru Doukyo Seikatsu ga Yosugite Kokoro made Onee-chan ni Nacchau!?~
NAN%
Tags
  • Non-blood-related Incest
  • Sex Change
  • Genderbent Sex
  • Suction on Nipples
  • Straight Shotacon
Rating 6.2321 Users
Tsuma ga Karada o Hiraku Wake ~Shiranu Ma ni Oi kara Sex Kaihatsu Sareteita Ai Suru Tsuma~
Tsuma ga Karada o Hiraku Wake ~Shiranu Ma ni Oi kara Sex Kaihatsu Sareteita Ai Suru Tsuma~
NAN%
Tags
  • Impregnation by Others
  • Blood-related Aunt/Nephew Incest
  • Nympho Heroine
  • Netorare
  • Drunk Sex
Rating 6.5440 Users
Ane wa Kanojo de Senzoku Maid
Ane wa Kanojo de Senzoku Maid
NAN%
Tags
  • Homemaker Protagonist
  • Stockings
  • Wedding
  • Condoms
  • Oneesan-type Heroine
Rating 6.4039 Users
Seikan Esute - AKARI - Maki (28)
Seikan Esute - AKARI - Maki (28)
NAN%
Tags
  • Erotic Massage
  • Salaryman Protagonist
  • Sex Scene Recollection
  • Only a Single Heroine
  • Male Protagonist
Rating 6.3221 Users
Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto-
Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto-
NAN%
Tags
  • Brother/Sister Incest
  • Chuunibyou Protagonist
  • Only Blood-related Heroines
  • Siscon Protagonist
  • Only Protagonist's Sisters as Heroine(s)
Rating 6.3022 Users
Kakeochi
Kakeochi
46%
Tags
  • Heroine with a Sundress
  • Pure Love Story
  • Reunion
  • Protagonist's Childhood Friend as a Heroine
  • Single Handjob
Rating 5.9720 Users
Anikano Minato to Houkago Netori Lesson ♪
Anikano Minato to Houkago Netori Lesson ♪
40%
Tags
  • Cheerleader Heroine
  • Has Window Transparency Setting
  • Background Moans
  • Heroine in Relationship with Other(s)
  • Nursing Handjob
Rating 6.6212 Users
Iegami Nyoubou ~Zannen Bijin na Byakko to Dousei Hajimemashita.~
Iegami Nyoubou ~Zannen Bijin na Byakko to Dousei Hajimemashita.~
39%
Tags
  • Kitsune Heroine
  • Goddess Heroine
  • Kemonomimi Heroine
  • White Haired Heroine
  • Intercrural Sex
Rating 6.4215 Users
Aka-chan Hoshii na ~Kyou kara Hajimaru Love Love Ecchi~
Aka-chan Hoshii na ~Kyou kara Hajimaru Love Love Ecchi~
38%
Tags
  • Heroine with Baby Complex
  • Pure Love Story
  • Cousin Incest
  • Only Protagonist's Relatives as Heroine(s)
  • Protagonist's Wife as a Heroine
Rating 6.7921 Users
Tonari ni Kanojo no Iru Shiawase ~Curious Queen~
Tonari ni Kanojo no Iru Shiawase ~Curious Queen~
37%
Tags
  • Naked Sprites
  • Only a Single Heroine
  • High School Student Heroine
  • Heroine with Big Breasts
  • Sexual Content
Rating 6.0825 Users
Tsuma ga Netorare Arbeit ~Charao no Kyokon ni Haiboku Shita Yome~
Tsuma ga Netorare Arbeit ~Charao no Kyokon ni Haiboku Shita Yome~
37%
Tags
  • Sex in Karaoke Box
  • Netorare
  • Married Heroine
  • Waitress Heroine
  • Short Sexual Scenes
Rating 5.6220 Users
Aerial Life
Aerial Life
36%
Tags
  • Gaming
  • Confinement in a Simulated Reality
  • Virtual Reality
  • Gamer Heroine
  • Protagonist's Kouhai as a Heroine
Rating 6.2923 Users
Hitozuma Zakari no Seishidou
Hitozuma Zakari no Seishidou
35%
Tags
  • Heroine with Children
  • Married Heroine
  • Teacher Heroine
  • Intercrural Sex
  • Big Breast Sizes Heroine
Rating 5.7818 Users
Zutto Mae Kara Joshi Deshita
Zutto Mae Kara Joshi Deshita
35%
Tags
  • Protagonist as the Only Male
  • High School
  • Protagonist's Childhood Friend as a Heroine
  • Shy Heroine
  • Sex with Protagonist Only
Rating 6.9530 Users
Torotoro Ricchi ~Nee-chan to Sono Tomodachi to Boku.~
Torotoro Ricchi ~Nee-chan to Sono Tomodachi to Boku.~
34%
Tags
  • Straight Shotacon
  • Background Moans
  • Nursing Handjob
  • Only Older Heroines
  • Gyaru Heroine
Rating 6.6620 Users
Momojiri Instructor Netori Lesson ~Kyouei Mizugi de Ero Zanmai~
Momojiri Instructor Netori Lesson ~Kyouei Mizugi de Ero Zanmai~
34%
Tags
  • Chubby Protagonist
  • Coach Heroine
  • Heroine in Relationship with Other(s)
  • Swimming Club
  • Netori
Rating 6.4721 Users
Nyotai-ka Shitara Shouta na Otouto ga Hatsujou Shisugite Yabai! ~Hitamuki ni Motomerare Makuru Doukyo Seikatsu ga Yosugite Kokoro made Onee-chan ni Nacchau!?~
Nyotai-ka Shitara Shouta na Otouto ga Hatsujou Shisugite Yabai! ~Hitamuki ni Motomerare Makuru Doukyo Seikatsu ga Yosugite Kokoro made Onee-chan ni Nacchau!?~
34%
Tags
  • Non-blood-related Incest
  • Sex Change
  • Genderbent Sex
  • Suction on Nipples
  • Straight Shotacon
Rating 6.2321 Users
Ane wa Kanojo de Senzoku Maid
Ane wa Kanojo de Senzoku Maid
32%
Tags
  • Homemaker Protagonist
  • Stockings
  • Wedding
  • Condoms
  • Oneesan-type Heroine
Rating 6.4039 Users
Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto-
Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto-
32%
Tags
  • Brother/Sister Incest
  • Chuunibyou Protagonist
  • Only Blood-related Heroines
  • Siscon Protagonist
  • Only Protagonist's Sisters as Heroine(s)
Rating 6.3022 Users
Anekano ~Onee-chan to Ecchi de Amai Himitsu no Kankei~
Anekano ~Onee-chan to Ecchi de Amai Himitsu no Kankei~
31%
Tags
  • Straight Shotacon
  • Siscon Protagonist
  • Homemaker Protagonist
  • Sister/Sister Incest
  • Shimaidon
Rating 6.7323 Users
Shindan no Kekka, Sore wa Koi no Yamai Desu
Shindan no Kekka, Sore wa Koi no Yamai Desu
31%
Tags
  • Medical Doctor Heroine
  • Genre Savvy Protagonist
  • Protagonist's Non-blood-related Sister as a Heroine
  • Nurse Heroine
  • Spring
Rating 6.6922 Users
Boku One ~End of Summer Days After~
Boku One ~End of Summer Days After~
30%
Tags
  • Heroine with Baby Complex
  • Summer
  • Time Jump
  • Pillow Talk
  • Armpit Licking
Rating 7.2632 Users
Siskon
Siskon
30%
Tags
  • Brother/Sister Romance
  • Blood-related Brother/Sister Incest
  • Salaryman Protagonist
  • Childishly Violent Heroine
  • Childhood Promise
Rating 6.6029 Users
Hirusagari no Danchizuma 2 ~Otto ni wa Ienai Himitsu no Houmon Hanbai~
Hirusagari no Danchizuma 2 ~Otto ni wa Ienai Himitsu no Houmon Hanbai~
30%
Tags
  • Heroine with Leotard
  • Netori
  • Discreet Phone Sex
  • Penile Masturbation
  • Highly Animated Sprites
Rating 6.5429 Users
Tonari no Oyako wa Nikushokukei!? ~Ai to Yokubou to Yuuwaku no Hibi wa Hikkoshi to Tomo ni Otozureru~
Tonari no Oyako wa Nikushokukei!? ~Ai to Yokubou to Yuuwaku no Hibi wa Hikkoshi to Tomo ni Otozureru~
29%
Tags
  • Divorcee Heroine
  • Onahole
  • Masturbation with Object
  • Oyakodon Ending
  • Heroine with Children
Rating 6.6024 Users
Ikenai Kozukuri 4 ~Namaiki na Aneki ga Jitsu wa Ore no Semen ga Daisuki Datta!?~
Ikenai Kozukuri 4 ~Namaiki na Aneki ga Jitsu wa Ore no Semen ga Daisuki Datta!?~
29%
Tags
  • Rounin Protagonist
  • Brother/Sister Romance
  • Blood-related Brother/Sister Incest
  • Only Blood-related Heroines
  • Only Older Heroines
Rating 6.8149 Users
Shiranu Ma ni Inran Kaihatsu Sareteita Saiai Kanojo ~Gomennasai... demo Anata yori Zenzen Kimochi Ii no~
Shiranu Ma ni Inran Kaihatsu Sareteita Saiai Kanojo ~Gomennasai... demo Anata yori Zenzen Kimochi Ii no~
29%
Tags
  • Protagonist's Girlfriend as a Heroine
  • Netorare Type B
  • Netorare
  • Protagonist in Relationship
  • Discreet Phone Sex
Rating 6.3827 Users
Binyuu Inmai Haruka "Watashi ni Iyarashii Cosplay Saseru nante... Kono Hentai!"
Binyuu Inmai Haruka "Watashi ni Iyarashii Cosplay Saseru nante... Kono Hentai!"
29%
Tags
  • Discipline Committee Leader Protagonist
  • Twin Bellyjob
  • Protagonist's Blood-related Sister as a Heroine
  • Heroine with Spats
  • Bunnygirl Cosplay
Rating 7.0627 Users
Houkago ni Midareru Ane Kyoushi to Tonari no Heya de Aegu Imouto ~Koibito ni Natta Onna no Ko ga, Shiriai no Iya na Otoko ni Netorareru~
Houkago ni Midareru Ane Kyoushi to Tonari no Heya de Aegu Imouto ~Koibito ni Natta Onna no Ko ga, Shiriai no Iya na Otoko ni Netorareru~
29%
Tags
  • Netorare Type B
  • Protagonist's Non-blood-related Sister as a Heroine
  • Shimaidon
  • Middle School Student Heroine
  • Netorare
Rating 6.4323 Users

One Love ~Yoru no Boku wa Ecchi na Onee-chan no Omocha ni Naru~ 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 (20 total)

NameScoreImportanceWeight
Only Protagonist's Relatives as Heroine(s)2.002.565.12
Cousin Romance2.002.394.77
Childhood Promise2.002.134.26
Only Older Heroines2.002.074.15
Cousin Incest2.002.014.02
Protagonist's Cousin as a Heroine2.001.883.77
Oneesan-type Heroine2.001.833.66
Condoms2.001.653.31
Only Virgin Heroines3.001.083.24
Teacher Heroine2.001.372.73
Under the Same Roof2.001.272.54
Early Sexual Content2.001.222.45
High School Student Protagonist2.001.202.41
Only a Single Heroine2.001.022.03
Sexual Fantasizing1.001.961.96
Defloration2.000.761.52
Unlockable Routes1.001.491.49
Male Protagonist2.000.300.60
ADV2.000.140.29
2.000.000.00

Traits (15 total)

NameCharactersImportanceWeight
Cousin Role21.872.06
Androphobia Subject of12.871.99
Ane Act Role12.731.89
Tiny Braid Hair12.071.44
Twin Braids Hair11.871.29
Teacher Role11.561.08
Blue Eyes20.800.88
Ribbon Hair Tie Clothes11.190.83
Necktie Clothes11.120.77
High School Student Role10.850.59
Virgin Sex Engages in (Sexual)10.850.59
Waist Length+ Hair10.810.56
Black Hair10.800.56
Brown Hair10.680.47
Short Hair10.610.42