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Summary

The season is early summer. The protagonist is living an ordinary but enjoyable school life with his proud older sister, "Iori Himekawa", and his best friend from childhood, "Seiji Tagami". The protagonist is very conscious of his sister as the ideal opposite sex, but at the same time, he almost gives up on the idea that she is unreachable. The older sister, Iori, has feelings for her younger brother, but is reluctant to reveal them outwardly because she fears for his future. His best friend, Seiji, who was born the only son of a wealthy family but grew up in a distorted family environment, is starved for affection and harbors ill feelings towards Iori. The three of them, each with their own mental distortions, are still on good terms on the surface and continue to have a good relationship. However, one day near the end of summer vacation, a change in the relationship between the three comes. When Iori goes to visit the main character's room, she happens to see him masturbating with her as his bait. She wonders if there is anything she can do to make him give up his feelings for her. The answer she comes up with is to talk to Seiji about it, who has a lot of experience with men and women. This is the first time in her life that she's been able to get her hands on a girl. "He convinces Iori that it is for the sake of her brother's future, and gets her to agree to a one-month relationship with him. Thus, Iori and Seiji begin their relationship as lovers. As Iori's younger brother and Seiji's best friend, the protagonist tries to support their relationship, but... He spends his days in agony at the appearance of his older sister, who is gradually dyed to his liking. As if to punish the protagonist, Seiji's "lover lessons" for Iori gradually escalate. [Translated from Getchu]

Mahou Shoujo wa Kiss Shite Kawaru ~Aite ga Kare Igai no Hito da Nante...~
Mahou Shoujo wa Kiss Shite Kawaru ~Aite ga Kare Igai no Hito da Nante...~
NAN%
Tags
  • Netorare Type C
  • Sex Under the Necessity
  • Mahou Shoujo Heroine
  • Netorare
  • Single Hole Multiple Tentacle Penetration
Rating 6.7136 Users
JK Bitch Sannin Musume! Tokunou Hame Pako Diary 2
JK Bitch Sannin Musume! Tokunou Hame Pako Diary 2
NAN%
Tags
  • Gyaru Heroine
  • Promiscuous Heroine
  • Sex on a Roof
  • Sex on a Beach
  • Onsen
Rating 6.4424 Users
Siskon
Siskon
NAN%
Tags
  • Protagonist's Older Sister as a Heroine
  • Salaryman Protagonist
  • Childishly Violent Heroine
  • Childhood Promise
  • Protagonist's Full Sister as a Heroine
Rating 6.3327 Users
Rinjin ni Kowasareteiku Ore no Tsuma
Rinjin ni Kowasareteiku Ore no Tsuma
NAN%
Tags
  • Netorare Type B
  • Netorare
  • Gang Bang
  • Sex Involving Prostitution
  • Only Non-Virgin Heroines
Rating 6.8877 Users
Mou Yurushite! Shasei Kanri Onee-san
Mou Yurushite! Shasei Kanri Onee-san
NAN%
Tags
  • Penis Cage
  • Orgasm Denial
  • Manual Prostate Stimulation
  • Vaginal Gaping
  • Central Heroine
Rating 6.2228 Users
Joou Kidori no Bakunyuu PTA Kaichou-domo o Saimin de Omocha Atsukai de Yariasonde Haramasete Yatta
Joou Kidori no Bakunyuu PTA Kaichou-domo o Saimin de Omocha Atsukai de Yariasonde Haramasete Yatta
NAN%
Tags
  • Erotic Mind Control
  • Only Adult Heroines
  • Big Breast Sizes Heroine
  • Adult Heroine
  • Nukige
Rating 6.2423 Users
Ore no Kanojo ga Shuushoku Shita Kaisha wa, Black Kigyou Datta...
Ore no Kanojo ga Shuushoku Shita Kaisha wa, Black Kigyou Datta...
NAN%
Tags
  • Office
  • Consensual Erotic Humiliation
  • Office Lady Heroine
  • Avoidable Netorare
  • Mindbreak
Rating 6.6040 Users
Shotacon Ryoubo-san ni Kawaigarareru Subarashiki Hibi
Shotacon Ryoubo-san ni Kawaigarareru Subarashiki Hibi
NAN%
Tags
  • Shotacon Heroine
  • Dormitory Manager Heroine
  • Shota Protagonist
  • Shotacon
  • Straight Shotacon
Rating 6.4520 Users
Reika no Yakata ~Saimin Yuugi e no Shoutaijou~
Reika no Yakata ~Saimin Yuugi e no Shoutaijou~
NAN%
Tags
  • Stranded
  • Brothel
  • Winter
  • Prostitute Heroine
  • Debt
Rating 6.2843 Users
Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~
Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~
NAN%
Tags
  • Non-twin Heroine Sisters
  • Pragmatic Protagonist
  • School Nurse Heroine
  • Blood-related Sister/Sister Incest
  • Ejaculation Forewarner
Rating 6.3331 Users
Aisai Nikki
Aisai Nikki
NAN%
Tags
  • Production of Pornography (Professional)
  • Netorase
  • Masturbation Involving Food
  • Heroine with Crotchless Clothing
  • Heroine with Garter Belt
Rating 7.0653 Users
Ikenai Kozukuri ~Shin
Ikenai Kozukuri ~Shin'yuu no Okaa-san ni Tanetsuke Shimakuru Isshuukan~
NAN%
Tags
  • No "Keep Voice on Click" Option
  • Netori
  • Infidelity
  • Impregnation
  • Only Non-Virgin Heroines
Rating 6.5636 Users
Yowami o Nigitte Hitozuma to Sono Musume o Pakottemita.
Yowami o Nigitte Hitozuma to Sono Musume o Pakottemita.
NAN%
Tags
  • Protagonist's Employee as a Heroine
  • Chubby Protagonist
  • Blowjob Duck Face
  • Oyakodon Ending
  • Blackmail
Rating 6.2422 Users
Kon
Kon'ya, Oji-sama ni Dakaremasu...
NAN%
Tags
  • In-law Incest
  • Protagonist's Sister-in-Law as a Heroine
  • Heroine with Huge Breasts
  • Blackmail
  • Sexual Devices
Rating 6.5322 Users
Hitozuma ni Natta Onee-san ~Manatsu no Omoide~
Hitozuma ni Natta Onee-san ~Manatsu no Omoide~
NAN%
Tags
  • Heroine with Jeans
  • Food Play
  • Infidelity
  • Heroine with Huge Breasts
  • Heroine with Inverted Nipples
Rating 6.3820 Users
Hirusagari no Danchizuma ~Otto ni wa Ienai Himitsu no Houmon Hanbai~
Hirusagari no Danchizuma ~Otto ni wa Ienai Himitsu no Houmon Hanbai~
NAN%
Tags
  • Netori
  • Villainous Protagonist
  • Hidden Vibrator
  • Condoms
  • Discreet Sex
Rating 6.3627 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~
NAN%
Tags
  • Netori
  • Heroine with Leotard
  • Penile Masturbation
  • Discreet Phone Sex
  • Reverse Missionary
Rating 6.2821 Users
Hora, Sonna ni Koe o Morasu to Kareshi ni Barechimau ze? ~Eroge Sekai de Mob no Shoujo o Netotte Mita~
Hora, Sonna ni Koe o Morasu to Kareshi ni Barechimau ze? ~Eroge Sekai de Mob no Shoujo o Netotte Mita~
NAN%
Tags
  • Heroine with Eye Covering Hairstyle
  • French Kiss
  • Rape with Blackmail
  • Shy Heroine
  • Sex in a Classroom
Rating 6.3722 Users
Gyakuten Majo Saiban -Yasashii Takaho Onee-chan wa Majo Chijo Bitch-
Gyakuten Majo Saiban -Yasashii Takaho Onee-chan wa Majo Chijo Bitch-
NAN%
Tags
  • Straight Shotacon
  • Witch Heroine
  • Heroine with Visible Panties
  • Shotacon
  • Heroine with Huge Breasts
Rating 6.1822 Users
Tsunagaranai Keitai Denwa -Tadaima Hoka no Otoko to Mechamecha Sex Chuu-
Tsunagaranai Keitai Denwa -Tadaima Hoka no Otoko to Mechamecha Sex Chuu-
NAN%
Tags
  • Drunk Sex
  • Clothed Female Naked Male
  • Netorare Type A
  • Unoriginal Graphics
  • Unoriginal Soundtrack
Rating 6.5425 Users
Kankyuu Goujuu
Kankyuu Goujuu
NAN%
Tags
  • Veterinarian Heroine
  • Consensual Sex with Animals
  • Animals
  • Pigs
  • Dogs
Rating 6.5145 Users
Kaa-san no Otoko ~Yajuu no You na Otoko ni Mesu no Yorokobi o Oboesaserareru Saiai no Haha~
Kaa-san no Otoko ~Yajuu no You na Otoko ni Mesu no Yorokobi o Oboesaserareru Saiai no Haha~
NAN%
Tags
  • Netorare Type B
  • Only Protagonist's Relatives as Heroine(s)
  • Protagonist's Blood-related Mother as a Heroine
  • Widow Heroine
  • Heroine with Crotchless Clothing
Rating 6.5858 Users
Reijou Sadistic Gekokujou Conspiracy
Reijou Sadistic Gekokujou Conspiracy
NAN%
Tags
  • Sadist Heroine
  • Nurse Heroine
  • Revenge
  • Heroine with Small Breasts (Non-Loli)
  • Imouto-type Heroine
Rating 6.1021 Users
Gakuen NTR ~Boku no Shiranai Kanojo no Kao~
Gakuen NTR ~Boku no Shiranai Kanojo no Kao~
NAN%
Tags
  • Humping
  • Idol Heroine
  • Clothed Male Naked Female
  • Netorare
  • High School Student Protagonist
Rating 6.4334 Users
Osananajimi o Ushinatta Natsu...
Osananajimi o Ushinatta Natsu...
35%
Tags
  • Rape by Possession
  • Delinquent Hero
  • Vaginal + Anal Tentacle Penetration
  • Netorare
  • Voiced Thoughts
Rating 6.3920 Users
Chikan Ochi ~Shinri Counselor Meika no Shinryou Kiroku~
Chikan Ochi ~Shinri Counselor Meika no Shinryou Kiroku~
34%
Tags
  • Chikan
  • Police Officer Heroine
  • Scientist Heroine
  • Molestation on Public Transport
  • Handcuffed Sex
Rating 6.5323 Users
Kon
Kon'ya, Oji-sama ni Dakaremasu...
33%
Tags
  • In-law Incest
  • Protagonist's Sister-in-Law as a Heroine
  • Heroine with Huge Breasts
  • Blackmail
  • Sexual Devices
Rating 6.5322 Users
Yowami o Nigitte Hitozuma to Sono Musume o Pakottemita.
Yowami o Nigitte Hitozuma to Sono Musume o Pakottemita.
31%
Tags
  • Protagonist's Employee as a Heroine
  • Chubby Protagonist
  • Blowjob Duck Face
  • Oyakodon Ending
  • Blackmail
Rating 6.2422 Users
Ikenai Kozukuri ~Shin
Ikenai Kozukuri ~Shin'yuu no Okaa-san ni Tanetsuke Shimakuru Isshuukan~
30%
Tags
  • No "Keep Voice on Click" Option
  • Netori
  • Infidelity
  • Impregnation
  • Only Non-Virgin Heroines
Rating 6.5636 Users
Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~
Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~
30%
Tags
  • Non-twin Heroine Sisters
  • Pragmatic Protagonist
  • School Nurse Heroine
  • Blood-related Sister/Sister Incest
  • Ejaculation Forewarner
Rating 6.3331 Users
Aisai Nikki
Aisai Nikki
29%
Tags
  • Production of Pornography (Professional)
  • Netorase
  • Masturbation Involving Food
  • Heroine with Crotchless Clothing
  • Heroine with Garter Belt
Rating 7.0653 Users
Shotacon Ryoubo-san ni Kawaigarareru Subarashiki Hibi
Shotacon Ryoubo-san ni Kawaigarareru Subarashiki Hibi
29%
Tags
  • Shotacon Heroine
  • Dormitory Manager Heroine
  • Shota Protagonist
  • Shotacon
  • Straight Shotacon
Rating 6.4520 Users
Reika no Yakata ~Saimin Yuugi e no Shoutaijou~
Reika no Yakata ~Saimin Yuugi e no Shoutaijou~
29%
Tags
  • Stranded
  • Brothel
  • Winter
  • Prostitute Heroine
  • Debt
Rating 6.2843 Users
Hirusagari no Danchizuma ~Otto ni wa Ienai Himitsu no Houmon Hanbai~
Hirusagari no Danchizuma ~Otto ni wa Ienai Himitsu no Houmon Hanbai~
29%
Tags
  • Netori
  • Villainous Protagonist
  • Hidden Vibrator
  • Condoms
  • Discreet Sex
Rating 6.3627 Users
Hora, Sonna ni Koe o Morasu to Kareshi ni Barechimau ze? ~Eroge Sekai de Mob no Shoujo o Netotte Mita~
Hora, Sonna ni Koe o Morasu to Kareshi ni Barechimau ze? ~Eroge Sekai de Mob no Shoujo o Netotte Mita~
28%
Tags
  • Heroine with Eye Covering Hairstyle
  • French Kiss
  • Rape with Blackmail
  • Shy Heroine
  • Sex in a Classroom
Rating 6.3722 Users
Tsunagaranai Keitai Denwa -Tadaima Hoka no Otoko to Mechamecha Sex Chuu-
Tsunagaranai Keitai Denwa -Tadaima Hoka no Otoko to Mechamecha Sex Chuu-
28%
Tags
  • Drunk Sex
  • Clothed Female Naked Male
  • Netorare Type A
  • Unoriginal Graphics
  • Unoriginal Soundtrack
Rating 6.5425 Users
Kaa-san no Otoko ~Yajuu no You na Otoko ni Mesu no Yorokobi o Oboesaserareru Saiai no Haha~
Kaa-san no Otoko ~Yajuu no You na Otoko ni Mesu no Yorokobi o Oboesaserareru Saiai no Haha~
28%
Tags
  • Netorare Type B
  • Only Protagonist's Relatives as Heroine(s)
  • Protagonist's Blood-related Mother as a Heroine
  • Widow Heroine
  • Heroine with Crotchless Clothing
Rating 6.5858 Users
Gakuen NTR ~Boku no Shiranai Kanojo no Kao~
Gakuen NTR ~Boku no Shiranai Kanojo no Kao~
28%
Tags
  • Humping
  • Idol Heroine
  • Clothed Male Naked Female
  • Netorare
  • High School Student Protagonist
Rating 6.4334 Users
JK Bitch Kuro Gyaru Musume! Tokunou Hame Pako Diary
JK Bitch Kuro Gyaru Musume! Tokunou Hame Pako Diary
28%
Tags
  • Gyaru Heroine
  • Sex Involving Prostitution
  • Promiscuous Heroine
  • Early Sexual Content
  • Double Handjob
Rating 6.2829 Users
Seiso de Majime na Kanojo ga, Saikyou Yaricir ni Kan
Seiso de Majime na Kanojo ga, Saikyou Yaricir ni Kan'yuu Saretara…?
28%
Tags
  • Sexual Corruption
  • Dialogue Based
  • Rape Involving Drugs
  • Discreet Masturbation
  • Masturbation in front of an Audience
Rating 6.3142 Users
Oyako Ai ~Ikenai Kozukuri 2~
Oyako Ai ~Ikenai Kozukuri 2~
27%
Tags
  • Heroine with Baby Complex
  • Only Protagonist's Relatives as Heroine(s)
  • Protagonist's Blood-related Daughter as a Heroine
  • No "Keep Voice on Click" Option
  • Father/Daughter Romance
Rating 6.4147 Users
Kon
Kon'ya, Otou-sama ni Dakaremasu...
27%
Tags
  • In-law Incest
  • Netorare
  • Miko Heroine
  • Condoms
  • Sexual Devices
Rating 7.0438 Users
Ubai ~Hito no Onna, Urimasu~
Ubai ~Hito no Onna, Urimasu~
27%
Tags
  • Production of Pornography (Professional)
  • Protagonist's Ex as a Heroine
  • Prostitution
  • Prostitute Heroine
  • Shimaidon Ending
Rating 6.4538 Users
Hidamari no Kioku
Hidamari no Kioku
27%
Tags
  • Sexual Corruption
  • Netorare Type A
  • Netorare
  • Defloration by Others
  • Linear Plot
Rating 6.7647 Users
Mama, Onani Suru Kurai Nara Boku ga Shite Ageru yo!
Mama, Onani Suru Kurai Nara Boku ga Shite Ageru yo!
26%
Tags
  • Armbinder
  • Heroine with Catsuit
  • Sexual Slavery (Consensual)
  • Sexual Roleplay
  • Protagonist's Blood-related Mother as a Heroine
Rating 6.0830 Users
Saimin Chuudoku ~Otto ga Shiranai Tsuma no Kao~
Saimin Chuudoku ~Otto ga Shiranai Tsuma no Kao~
26%
Tags
  • Erotic Mind Control
  • Second-person Narrative
  • Spreader Bar
  • Married Heroine
  • Food Play
Rating 6.1227 Users
Shin Hoka no Otoko no Seieki de Harande mo Ii Desu ka...? Uwaki H ga Amari ni Kimochi Yokute Sounyuu Sareta Dake de Sugu ni Icchau Katabutsu Joshikousei
Shin Hoka no Otoko no Seieki de Harande mo Ii Desu ka...? Uwaki H ga Amari ni Kimochi Yokute Sounyuu Sareta Dake de Sugu ni Icchau Katabutsu Joshikousei
25%
Tags
  • Impregnation by Others
  • Choices from Other Perspectives
  • Netorare
  • Netorare Type A
  • Unoriginal Graphics
Rating 6.6551 Users
Honto no Kimochi
Honto no Kimochi
25%
Tags
  • Unoriginal Soundtrack
  • Co-worker Heroine
  • Orgasm Denial
  • Netorare
  • Waitress Heroine
Rating 6.9348 Users

Nee-san no Kareshi ~Akogare no Nee-san ga Shin'yuu to Tsukiai Hajimemashita~ 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 (57 total)

NameScoreImportanceWeight
Jealousy3.002.096.27
Netorare Type A2.332.144.99
Protagonist's Older Sister as a Heroine3.001.614.84
Clothed Female Naked Male2.002.164.32
Penile Masturbation2.002.144.29
Masturbation with Object2.002.104.19
Dramatic Love Triangle2.002.074.14
Only Older Heroines2.002.064.12
Protagonist's Full Sister as a Heroine3.001.334.00
Mirror Sex2.001.983.95
Siscon Protagonist2.001.963.92
Only Blood-related Heroines2.001.893.79
Mutual Masturbation2.001.693.38
Condoms2.001.583.15
Discreet Sex2.001.583.15
Brocon Heroine2.001.553.10
Sex on a Beach1.502.063.08
Heroine with Swimsuits2.001.543.07
Date Display2.001.472.93
Sex in Front of an Audience2.001.462.93
Only Protagonist's Sisters as Heroine(s)1.501.912.87
Vaginal Masturbation2.001.402.80
Netorare1.801.452.61
Anal Toys2.001.292.59
Vaginal Fingering2.001.292.57
Blood-related Brother/Sister Incest2.001.282.56
Used Condoms Exposition1.002.522.52
Ahegao2.001.232.46
Anal Sex2.001.182.36
Single Boobjob2.001.172.33
Lactation During Sex2.001.162.32
Early Sexual Content2.001.152.31
Student Protagonist2.001.142.28
Multiple Penetration2.001.102.20
Other Perspectives2.001.082.16
Vibrators2.001.062.12
Quickie Fix Position2.001.052.10
Only Virgin Heroines2.001.052.10
Only a Single Heroine2.001.022.05
Sex in Public Places2.001.012.01
Sixty-nine2.000.991.98
Standing Sex2.000.981.96
Single Blowjob2.000.931.87
Outdoor Sex2.000.921.83
French Kiss1.001.811.81
Missionary Position2.000.871.74
Student Heroine2.000.871.73
Reverse Missionary1.001.611.61
High School Student Heroine2.000.791.59
Cowgirl2.000.761.51
Defloration2.000.741.49
Doggy Style2.000.711.43
Multiple Endings2.000.631.26
Nukige2.000.591.18
Sexual Content2.000.511.02
Male Protagonist3.000.290.86
ADV2.000.200.39

Traits (60 total)

NameCharactersImportanceWeight
Sex on Beach Engages in (Sexual)22.342.57
Mirror Sex Engages in (Sexual)22.262.48
Condom Sex Engages in (Sexual)22.222.44
Consensual Porn Filming Engages in (Sexual)22.122.33
Mutual Masturbation Engages in (Sexual)21.902.08
Used Condoms Exposition Engages in (Sexual)12.902.01
Sling Bikini Clothes12.591.80
Sex in Front of an Audience Engages in (Sexual)21.611.77
Consumption of Porn Engages in (Sexual)12.551.77
New Type School Swimsuit Clothes12.451.70
Thong Panties Clothes12.441.69
Reverse Missionary Engages in (Sexual)12.421.67
Crotchless Panties Clothes12.371.64
Siscon Personality12.361.64
Open Cup Bra Clothes12.341.62
Brocon Personality12.021.40
Hime Cut Hair12.011.39
Sex in Public Places Engages in (Sexual)21.261.38
Boyfriend Role11.971.37
Anal Beads Subject of (Sexual)11.951.35
Full Brother Role11.951.35
Vaginal Gaping Engages in (Sexual)11.931.34
Sixty-nine Engages in (Sexual)21.211.33
Younger Brother Role11.921.33
Quickie Fix Engages in (Sexual)11.911.33
Standing Sex Engages in (Sexual)11.901.32
Boobjob Subject of (Sexual)11.901.32
Pink Rotor Subject of (Sexual)11.801.25
Cowgirl Engages in (Sexual)11.741.21
Reverse Missionary Subject of (Sexual)11.721.19
Missionary Subject of (Sexual)21.071.18
Doggy Style Engages in (Sexual)11.701.18
Vaginal Fingering Engages in (Sexual)11.661.15
Girlfriend Role11.611.12
Blowjob Subject of (Sexual)11.561.08
Garter Belt Stockings Clothes11.561.08
Multiple Penetration Subject of (Sexual)11.551.08
High School Student Role30.751.04
Incest Engages in (Sexual)11.461.01
Black Eyes11.451.01
Grey Hair11.410.97
Ahegao Engages in (Sexual)11.340.93
Masturbation Engages in (Sexual)11.280.89
Friend Role11.250.87
Standing Sex Subject of (Sexual)11.140.79
Teen Body30.560.78
Vaginal Fingering Subject of (Sexual)11.060.73
Boobjob Engages in (Sexual)11.040.72
Quickie Fix Subject of (Sexual)11.040.72
Slim Body30.520.72
School Uniform Clothes20.640.71
Thigh-high Stockings Clothes10.970.67
Cowgirl Subject of (Sexual)10.920.64
Doggy Style Subject of (Sexual)10.890.62
Black Hair10.830.58
Blue Eyes10.800.55
Waist Length+ Hair10.760.52
Pale Body30.370.51
Blowjob Engages in (Sexual)10.740.51
Short Hair10.610.42