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Summary

A family just moved in next door. The main character cannot help but be curious about the beautiful mother Naoko and daughter Erina. After witness Naoko's shower, his thoughts become worse. But Naoko is a married woman, and also much older than himself. Although he is worried, they still meet each other everyday since they are neighbors, and become closer. Helping with physical works, being invited for meals, and even looking over her daughter's studies. The opportunity to go to her house also increase, the relationship deepens...!? After that, what kind of "relationship" is it will be left to your choice! [Translated from Getchu]

Musuko no Musuko wa Dare no Mono!? ~Musuko Soudatsu Haha Imouto Sensen~
Musuko no Musuko wa Dare no Mono!? ~Musuko Soudatsu Haha Imouto Sensen~
NAN%
Tags
  • Oyakodon
  • Mother/Son Romance
  • Blood-related Mother/Daughter Incest
  • Oyakodon Ending
  • Widow Heroine
Rating 6.4543 Users
Yokkyuu Fuman na Boku no Mama no Sex Lesson ~Papa ni wa Ienai Katei-nai Jouji~
Yokkyuu Fuman na Boku no Mama no Sex Lesson ~Papa ni wa Ienai Katei-nai Jouji~
NAN%
Tags
  • Quickie
  • Only Blood-related Heroines
  • Only Older Heroines
  • Blood-related Mother/Son Incest
  • Only Non-Virgin Heroines
Rating 6.0745 Users
Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!!
Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!!
NAN%
Tags
  • Full Chastity Belt
  • Quadruple+ Blowjob
  • Clothed Female Naked Male
  • Protagonist's Sister as a Heroine
  • Cosplay
Rating 6.9630 Users
Mama x Kano ~Oshiego no Okaa-san ga Ecchi na Sensei de, Musume no Sewa o Yaitara Dame Desu ka?~
Mama x Kano ~Oshiego no Okaa-san ga Ecchi na Sensei de, Musume no Sewa o Yaitara Dame Desu ka?~
NAN%
Tags
  • Teacher Protagonist
  • Divorcee Heroine
  • Widow Heroine
  • Twin Footjob
  • Heroine's Mother as a Heroine
Rating 7.4582 Users
Nagori-san wa Takane no Hana ni Narikirenai -Ren
Nagori-san wa Takane no Hana ni Narikirenai -Ren'ai Hensachi 0 no Shinrigaku-
NAN%
Tags
  • University Teacher Protagonist
  • Kneepit Sex
  • Attempted Rape
  • Stalking
  • Student-Teacher Romance
Rating 6.5656 Users
Hara Katsu! ~Kininaru Ano Ko to Kozukuri Ecchi~
Hara Katsu! ~Kininaru Ano Ko to Kozukuri Ecchi~
NAN%
Tags
  • Ejaculation Forewarner
  • Heroine in Relationship with Other(s)
  • Apartment Building
  • Silhouettes
  • Sexual Roleplay
Rating 6.8859 Users
Mama x Kano+ ~Oshiego no Okaa-san ga Ecchi na Sensei de, Musume mo Ecchi ni Nattara Dame Desu ka?~
Mama x Kano+ ~Oshiego no Okaa-san ga Ecchi na Sensei de, Musume mo Ecchi ni Nattara Dame Desu ka?~
NAN%
Tags
  • Oyakodon Ending
  • Sex with Protagonist Only
  • Rope Bondage
  • Naked Heroine with Apron
  • Threesome
Rating 7.6441 Users
Peekaboo! ~Kanojo ga Ecchi na Mizugi ni Kigaetara!?~
Peekaboo! ~Kanojo ga Ecchi na Mizugi ni Kigaetara!?~
NAN%
Tags
  • Non-penetrative Sex
  • Shy Heroine
  • Twin Boobjob
  • Heroine with Swimsuits
  • Production of Pornography (Amateur)
Rating 6.8236 Users
Idol Pafupafu Management -Geinou Musume o H ni Bust UP Producer-
Idol Pafupafu Management -Geinou Musume o H ni Bust UP Producer-
NAN%
Tags
  • Japanese Idols
  • Dying Protagonist
  • Breast Expansion
  • Leader Heroine
  • Chuunibyou Heroine
Rating 7.0345 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~
NAN%
Tags
  • Divorcee Heroine
  • Onahole
  • Masturbation with Object
  • Oyakodon Ending
  • Heroine with Children
Rating 6.6024 Users
♥ri no Hentai Nikki ~Chijo ni Naritai Onna no Ko~
♥ri no Hentai Nikki ~Chijo ni Naritai Onna no Ko~
NAN%
Tags
  • Chikan Heroine
  • Only Loli Heroines
  • Nympho Heroine
  • Exhibitionism
  • Consensual Group Sex of One Female and Several Males
Rating 6.2630 Users
Meimon Joshikou Ryokou ~Ore Dake Otoko Nandesu ga!?~
Meimon Joshikou Ryokou ~Ore Dake Otoko Nandesu ga!?~
NAN%
Tags
  • Trap Protagonist
  • All-girls School
  • Single Buttjob
  • Half-Japanese Heroine
  • Only Virgin Heroines
Rating 7.0724 Users
Torottoro no Oyako Ren
Torottoro no Oyako Ren'ai ~Okaa-san no Toro Kao ga Kawaii~
NAN%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
  • Only Blood-related Heroines
  • Only Older Heroines
  • Condoms
Rating 6.3024 Users
Hitozuma ni Natta Onee-san ~Manatsu no Omoide~
Hitozuma ni Natta Onee-san ~Manatsu no Omoide~
NAN%
Tags
  • Heroine with Jeans
  • Food Play
  • Ejaculation Forewarner
  • Heroine with Inverted Nipples
  • Mirror Sex
Rating 6.5927 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
  • Anal Plug Tail
  • Erotic Mind Control
  • Arrogant Heroine
  • Revenge
  • Twin Boobjob
Rating 6.4331 Users
Doutei Gui ~Hitozuma no Akunaki In
Doutei Gui ~Hitozuma no Akunaki In'yoku~
NAN%
Tags
  • Only Older Heroines
  • Netori
  • Infidelity
  • Only Adult Heroines
  • Married Heroine
Rating 6.1524 Users
Bakunyuu Hoken Onna Kyoushi
Bakunyuu Hoken Onna Kyoushi
NAN%
Tags
  • School Nurse Heroine
  • Clothed Male Naked Female
  • Bisexual Heroine
  • Teacher Heroine
  • Promiscuous Heroine
Rating 6.5933 Users
Kanrinin-san wa Miboujin
Kanrinin-san wa Miboujin
NAN%
Tags
  • Widow Heroine
  • Oneesan-type Heroine
  • Short Sexual Scenes
  • Twin Boobjob
  • Condoms
Rating 6.5226 Users
Maternity Monsters! ~Usamimi Iinchou to Kiyoku Tadashii Nikutai Kankei!~
Maternity Monsters! ~Usamimi Iinchou to Kiyoku Tadashii Nikutai Kankei!~
NAN%
Tags
  • Sex with Monster Girls
  • School Nurse Support Character
  • Rabbitgirl Heroine
  • Class President Heroine
  • Succubus Heroine
Rating 6.6022 Users
Ryoudonari no Hitozuma ~Sou Natta Wake wa Apart no Kabe ga Usukatta kara~
Ryoudonari no Hitozuma ~Sou Natta Wake wa Apart no Kabe ga Usukatta kara~
NAN%
Tags
  • Apartment Building
  • Only Adult Heroines
  • Soapy Massage
  • Sexual Devices
  • Dildos
Rating 6.2928 Users
Ore no Imouto wa Seijun Bitch ~Oya ni wa Himitsu no Hamehame Seikatsu~
Ore no Imouto wa Seijun Bitch ~Oya ni wa Himitsu no Hamehame Seikatsu~
NAN%
Tags
  • Only Younger Heroines
  • Only Blood-related Heroines
  • Discreet Phone Sex
  • Only Protagonist's Sisters as Heroine(s)
  • Single Buttjob
Rating 6.6334 Users
Hara Marriage ~Tabegoro Body wa Ninshin Chuu!?~
Hara Marriage ~Tabegoro Body wa Ninshin Chuu!?~
NAN%
Tags
  • Oyakodon Ending
  • Protagonist's Fiancee as a Heroine
  • Unlockable Sexual Content
  • Protagonist's Girlfriend as a Heroine
  • Heroine's Mother as a Heroine
Rating 7.1528 Users
Suspicion - Giwaku no Sei -
Suspicion - Giwaku no Sei -
NAN%
Tags
  • Reverse Netorare
  • Protagonist's Girlfriend as a Heroine
  • Promiscuous Heroine
  • Foreigner Heroine
  • High School Student Protagonist
Rating 6.0922 Users
Itazura ~Boku Dake no Zettai Ryouiki~
Itazura ~Boku Dake no Zettai Ryouiki~
NAN%
Tags
  • Chikan Heroine
  • Hotel
  • Trains
  • Voiced Thoughts
  • Pregnancy Good Ending
Rating 6.1720 Users
Musuko ga Osewa ni Narimashite ~Miboujin Kanrinin-san to Kaa-san to~
Musuko ga Osewa ni Narimashite ~Miboujin Kanrinin-san to Kaa-san to~
43%
Tags
  • Mother/Son Incest
  • Only Adult Heroines
  • Masochist Heroine
  • Clothed Male Naked Female
  • Pregnancy Ending
Rating 6.3334 Users
Kyonyuu Onsen Kozukuri no Yu ~Yama no Naka no Hitou de Deatta no wa Bijin Oyako Deshita~
Kyonyuu Onsen Kozukuri no Yu ~Yama no Naka no Hitou de Deatta no wa Bijin Oyako Deshita~
41%
Tags
  • Oyakodon Ending
  • Student Council
  • Onsen
  • Widow Heroine
  • Heroine with Kimono
Rating 6.4032 Users
Hitozuma ni Natta Onee-san ~Manatsu no Omoide~
Hitozuma ni Natta Onee-san ~Manatsu no Omoide~
39%
Tags
  • Heroine with Jeans
  • Food Play
  • Ejaculation Forewarner
  • Heroine with Inverted Nipples
  • Mirror Sex
Rating 6.5927 Users
Torottoro no Oyako Ren
Torottoro no Oyako Ren'ai ~Okaa-san no Toro Kao ga Kawaii~
38%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
  • Only Blood-related Heroines
  • Only Older Heroines
  • Condoms
Rating 6.3024 Users
Meimon Joshikou Ryokou ~Ore Dake Otoko Nandesu ga!?~
Meimon Joshikou Ryokou ~Ore Dake Otoko Nandesu ga!?~
37%
Tags
  • Trap Protagonist
  • All-girls School
  • Single Buttjob
  • Half-Japanese Heroine
  • Only Virgin Heroines
Rating 7.0724 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~
37%
Tags
  • Divorcee Heroine
  • Onahole
  • Masturbation with Object
  • Oyakodon Ending
  • Heroine with Children
Rating 6.6024 Users
♥ri no Hentai Nikki ~Chijo ni Naritai Onna no Ko~
♥ri no Hentai Nikki ~Chijo ni Naritai Onna no Ko~
35%
Tags
  • Chikan Heroine
  • Only Loli Heroines
  • Nympho Heroine
  • Exhibitionism
  • Consensual Group Sex of One Female and Several Males
Rating 6.2630 Users
Peekaboo! ~Kanojo ga Ecchi na Mizugi ni Kigaetara!?~
Peekaboo! ~Kanojo ga Ecchi na Mizugi ni Kigaetara!?~
35%
Tags
  • Non-penetrative Sex
  • Shy Heroine
  • Twin Boobjob
  • Heroine with Swimsuits
  • Production of Pornography (Amateur)
Rating 6.8236 Users
Idol Pafupafu Management -Geinou Musume o H ni Bust UP Producer-
Idol Pafupafu Management -Geinou Musume o H ni Bust UP Producer-
34%
Tags
  • Japanese Idols
  • Dying Protagonist
  • Breast Expansion
  • Leader Heroine
  • Chuunibyou Heroine
Rating 7.0345 Users
Doutei Gui ~Hitozuma no Akunaki In
Doutei Gui ~Hitozuma no Akunaki In'yoku~
34%
Tags
  • Only Older Heroines
  • Netori
  • Infidelity
  • Only Adult Heroines
  • Married Heroine
Rating 6.1524 Users
Kanrinin-san wa Miboujin
Kanrinin-san wa Miboujin
34%
Tags
  • Widow Heroine
  • Oneesan-type Heroine
  • Short Sexual Scenes
  • Twin Boobjob
  • Condoms
Rating 6.5226 Users
Ryoudonari no Hitozuma ~Sou Natta Wake wa Apart no Kabe ga Usukatta kara~
Ryoudonari no Hitozuma ~Sou Natta Wake wa Apart no Kabe ga Usukatta kara~
33%
Tags
  • Apartment Building
  • Only Adult Heroines
  • Soapy Massage
  • Sexual Devices
  • Dildos
Rating 6.2928 Users
Hara Marriage ~Tabegoro Body wa Ninshin Chuu!?~
Hara Marriage ~Tabegoro Body wa Ninshin Chuu!?~
33%
Tags
  • Oyakodon Ending
  • Protagonist's Fiancee as a Heroine
  • Unlockable Sexual Content
  • Protagonist's Girlfriend as a Heroine
  • Heroine's Mother as a Heroine
Rating 7.1528 Users
Itazura ~Boku Dake no Zettai Ryouiki~
Itazura ~Boku Dake no Zettai Ryouiki~
32%
Tags
  • Chikan Heroine
  • Hotel
  • Trains
  • Voiced Thoughts
  • Pregnancy Good Ending
Rating 6.1720 Users
Itoshi no Haha to Wakai Oba ~Boshi Katei ni Oba ga Korogarikonde Kita Kekka www~
Itoshi no Haha to Wakai Oba ~Boshi Katei ni Oba ga Korogarikonde Kita Kekka www~
32%
Tags
  • Shotacon
  • Aunt/Nephew Incest
  • Straight Shotacon
  • Mother/Son Incest
  • Blood-related Aunt/Nephew Incest
Rating 6.6973 Users
Binyuu Inmai Haruka "Watashi ni Iyarashii Cosplay Saseru nante... Kono Hentai!"
Binyuu Inmai Haruka "Watashi ni Iyarashii Cosplay Saseru nante... Kono Hentai!"
31%
Tags
  • Discipline Committee Leader Protagonist
  • Twin Bellyjob
  • Protagonist's Blood-related Sister as a Heroine
  • Heroine with Spats
  • Bunnygirl Cosplay
Rating 7.0627 Users
Amai Seikatsu -Saikou no Gibo to Saikou no Gishimai-
Amai Seikatsu -Saikou no Gibo to Saikou no Gishimai-
31%
Tags
  • Non-blood-related Incest
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Non-blood-related Brother/Sister Incest
  • Protagonist's Non-blood-related Sister as a Heroine
Rating 7.3330 Users
Maternity Monsters! ~Jinrou Kaichou to Yuisho Tadashiki Kozukuri Sengen!~
Maternity Monsters! ~Jinrou Kaichou to Yuisho Tadashiki Kozukuri Sengen!~
31%
Tags
  • Heroine with Baby Complex
  • Sex with Monster Girls
  • Student Council President Heroine
  • Protagonist in Relationship
  • Monster Girl Heroine
Rating 6.4723 Users
Himitsu no Itazura ~Kazoku ga Amari ni mo Miryokuteki nano de Kossori xx Shite Miru Koto ni Shimashita~
Himitsu no Itazura ~Kazoku ga Amari ni mo Miryokuteki nano de Kossori xx Shite Miru Koto ni Shimashita~
31%
Tags
  • Sex with Sleepers
  • Twin Buttjob
  • Only Protagonist's Relatives as Heroine(s)
  • Heroine in Relationship with Other(s)
  • Rape Involving Drugs
Rating 6.2934 Users
Amayakashitari Shinai zo! ~Chiisaku Natte Junjou Kachiki na Aoba Onee-chan ni Shikari Kawaigarareru Tsundere Kozukuri~
Amayakashitari Shinai zo! ~Chiisaku Natte Junjou Kachiki na Aoba Onee-chan ni Shikari Kawaigarareru Tsundere Kozukuri~
31%
Tags
  • Cosplay
  • Shota Protagonist
  • Straight Shotacon
  • Heroine with Swimsuits
  • Sex in Water
Rating 6.4422 Users
Futari no Aniyome ~Miryokuteki na Aniyome-tachi to Doukyo Suru Koto ni Natta Hibi no Tenmatsu~
Futari no Aniyome ~Miryokuteki na Aniyome-tachi to Doukyo Suru Koto ni Natta Hibi no Tenmatsu~
30%
Tags
  • Protagonist's Sister-in-Law as a Heroine
  • Domicile
  • Pregnancy Ending
  • Netori
  • Big Breast Sizes Heroine
Rating 6.7831 Users
Tomo Haha Gachi Haramase!~Dekapai Bosei Mama o Wakai Sex Zuke de Ore no Mesu ni Shite Yatta!~
Tomo Haha Gachi Haramase!~Dekapai Bosei Mama o Wakai Sex Zuke de Ore no Mesu ni Shite Yatta!~
29%
Tags
  • Heroine with Children
  • Heroine with Crotchless Clothing
  • Clothed Male Naked Female
  • Love Hotel
  • Only Non-Virgin Heroines
Rating 6.4438 Users
Hatsujou Season
Hatsujou Season
29%
Tags
  • Werewolf Heroine
  • Albino Heroine
  • Skip Scenes
  • Transfer Student Heroine
  • Half-Japanese Heroine
Rating 6.6326 Users
Maternity Monsters! ~Shinsou no Shinso to Ecchi de Abunai Shinsou Tsuikyuu!~
Maternity Monsters! ~Shinsou no Shinso to Ecchi de Abunai Shinsou Tsuikyuu!~
29%
Tags
  • Heroine with Baby Complex
  • Polygamy
  • Vampire Heroine
  • Kemonomimi Heroine
  • Modern Tsundere Heroine
Rating 6.6322 Users

Gokinjo Zukiai ~Rinjin Bijin Oyako Kousai~ 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 (25 total)

NameScoreImportanceWeight
Heroine with Anal Hair2.002.685.37
Oyakodon Ending2.001.993.99
Sex with Sleepers2.001.903.81
Sexual Devices2.001.743.49
Condoms2.001.663.31
Discreet Sex2.001.603.21
Voyeurism2.001.593.17
Fingering2.001.533.07
Pregnancy2.001.533.05
Handjob2.001.513.03
Heroine Having Sex with Others2.001.513.03
Masturbation2.001.502.99
Married Heroine2.001.422.85
Perverted Heroine2.001.412.82
Big Breast Sizes Heroine2.001.322.63
Heroine with Sexual Experience2.001.212.42
Pregnant Sex2.001.182.36
Blowjob2.001.122.25
Anal Penetration1.501.321.99
Missionary Position2.000.941.88
Heroine with Big Breasts2.000.841.67
Doggy Style2.000.811.61
Defloration2.000.761.52
Nukige2.000.651.30
Male Protagonist3.000.300.90

Traits (95 total)

NameCharactersImportanceWeight
Sex Friend Role32.443.38
Off Screen Sex (obsolete) Engages in (Sexual)22.552.80
Neighbor Role31.992.76
Voyeurism Subject of (Sexual)31.952.71
Casual Sex Engages in (Sexual)22.452.69
Voyeurism Engages in (Sexual)22.142.35
Anilingus Subject of (Sexual)22.052.25
Anal Hair Hair13.142.17
Assertive Personality21.942.13
Discreet Sex Engages in (Sexual)21.852.04
Ballerina Shoes Clothes12.932.03
Masturbation Engages in (Sexual)31.401.94
Pervert Personality21.631.79
Sleep Sex Subject of (Sexual)12.491.73
Consumption of Porn Engages in (Sexual)12.461.71
Gardening Engages in12.451.70
Baby-doll Clothes12.441.69
Sex in Front of an Audience Engages in (Sexual)21.501.65
Ball-cupping Engages in (Sexual)12.331.62
Incest Engages in (Sexual)21.471.61
Housewife Role12.311.60
Leggings Clothes12.271.57
Whimsical Personality12.261.56
Balls Sucking Engages in (Sexual)12.251.56
Blowjob Duck Face Engages in (Sexual)12.241.55
Blackmail Engages in12.221.54
Micro Bikini Clothes12.211.53
Seduction Engages in12.171.51
Sundress Clothes12.141.49
Blackmail Subject of12.131.47
Pubic Hair Hair21.341.47
Third Person Personality12.111.47
Lace Lingerie Clothes12.101.45
Wedding Ring Clothes12.001.39
Sex with Others Engages in (Sexual)11.991.38
Immature Personality11.931.34
Sandals Clothes11.931.34
Masturbation in front of an Audience Engages in (Sexual)11.901.32
Multiple Penetration Subject of (Sexual)11.881.30
Butterfly Subject of (Sexual)21.171.29
Cunnilingus Subject of (Sexual)21.161.28
Hidden Eyes11.801.25
Infidelity Engages in11.801.25
Vaginal/Anal Sexual Toys Subject of (Sexual)11.741.21
Loafers Clothes11.711.19
Naive Personality11.691.17
Carefree Personality11.681.17
Spoons Subject of (Sexual)11.671.16
Cyan Eyes11.671.15
Garnet Eyes11.661.15
Sweater Clothes11.631.13
Clothing with Ribbons Clothes11.581.10
Spiky Bangs Hair21.001.10
Ore Personality11.581.09
Sidehair Hair20.981.08
Group Sex Engages in (Sexual)11.521.05
Doggy Style Subject of (Sexual)20.921.01
Mother Role11.461.01
Daughter Role11.461.01
Cooking Engages in11.420.98
Not a Virgin Role11.410.98
Bathroom Sex Engages in (Sexual)11.390.96
Knee-high Socks Clothes11.380.96
Nipple Sucking Subject of (Sexual)11.380.96
Female Ejaculation Engages in (Sexual)11.360.95
Wavy Hair11.360.94
T-shirt Clothes11.310.91
Ribbon Tie Clothes11.250.87
Watashi Personality11.250.87
Blowjob Engages in (Sexual)20.760.84
Blue Hair11.190.83
Ribbon Hair Tie Clothes11.190.83
Anal Sex Subject of (Sexual)11.190.82
Standing Sex Subject of (Sexual)11.180.81
Handjob Engages in (Sexual)11.160.80
Twin Tails Hair11.130.78
Big Breasts Body11.130.78
Missionary Subject of (Sexual)11.120.77
Quickie Fix Subject of (Sexual)11.080.75
Vaginal Fingering Subject of (Sexual)11.080.75
Miniskirt Clothes11.060.74
Parted to Side Hair11.050.73
Kind Personality11.030.71
Straight Hair10.940.65
Virgin Sex Engages in (Sexual)10.850.59
Waist Length+ Hair10.810.56
Black Hair10.810.56
Young-adult Body10.760.53
School Uniform Clothes10.760.52
Long Hair10.750.52
Brown Hair10.680.47
Teen Body10.620.43
Short Hair10.610.42
Pale Body20.370.40
Slim Body10.580.40