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Summary

Yusaku lives with his mother, Shouko. He lost his father a few years ago, and they have been living together since then. One day, he gives her a present. He takes her to a spa hotel, and they stay one night there. Their peaceful day at the hotel is almost over, but they accidentally see a hotel staff member having sex with a young man. They get sexually excited, and.... [From erogeshop]

Otouto Shibori ~Ane-tachi no Sei Kyouiku~
Otouto Shibori ~Ane-tachi no Sei Kyouiku~
NAN%
Tags
  • Shotacon
  • Pegging
  • Footjob
  • Shota Protagonist
  • Oneesan-type Heroine
Rating 6.1321 Users
Beppin Mama ~Love Love Boshi Yuugi~
Beppin Mama ~Love Love Boshi Yuugi~
NAN%
Tags
  • Blood-related Aunt/Nephew Incest
  • Only Older Heroines
  • Protagonist's Aunt as a Heroine
  • Straight Shotacon
  • Heroine with Anal Hair
Rating 6.3744 Users
Oba no Shinshitsu
Oba no Shinshitsu
NAN%
Tags
  • Blood-related Aunt/Nephew Incest
  • Protagonist's Aunt as a Heroine
  • Divorcee Heroine
  • Blood-related Mother/Daughter Incest
  • Literary Adaptation
Rating 6.9414 Users
Jukubo Gui ~Moto Guradoru no Okaa-san~
Jukubo Gui ~Moto Guradoru no Okaa-san~
NAN%
Tags
  • Blackmail
  • Sexual Devices
  • Threesome Ending
  • Naked Heroine with Apron
  • Netori
Rating 7.3225 Users
Hitozuma Onna Kyoushi Seiyoku no Kyoushitsu
Hitozuma Onna Kyoushi Seiyoku no Kyoushitsu
NAN%
Tags
  • Principal Heroine
  • Only Adult Heroines
  • Dirty Talk
  • Cosplay
  • Widow Heroine
Rating 6.1525 Users
Ranbo ~Miboujin Haha no Ureta Nikutai~
Ranbo ~Miboujin Haha no Ureta Nikutai~
NAN%
Tags
  • Heroine with Inverted Nipples
  • Only Blood-related Heroines
  • Blood-related Mother/Son Incest
  • Protagonist with Children
  • Heroine with Tights
Rating 6.6527 Users
Akogare no Okaa-san
Akogare no Okaa-san
NAN%
Tags
  • Non-blood-related Mother/Son Incest
  • Aunt/Nephew Incest
  • Protagonist's Aunt as a Heroine
  • Early Branching Plot
  • Protagonist's Non-blood-related Mother as a Heroine
Rating 6.5037 Users
Hitozuma♪ Kasumi-san 2 ~Oku-sama - Miboujin Owner to Kyoudou Seikatsu~
Hitozuma♪ Kasumi-san 2 ~Oku-sama - Miboujin Owner to Kyoudou Seikatsu~
NAN%
Tags
  • Only Adult Heroines
  • Vaginal Gaping
  • Widow Heroine
  • Stockings
  • Sexual Cosplay
Rating 7.1720 Users
Hitozuma Onna Kyoushi Reika ~Nyuujoku no Mesu Dorei~
Hitozuma Onna Kyoushi Reika ~Nyuujoku no Mesu Dorei~
NAN%
Tags
  • Heroine with Beauty Mark
  • Sexual Devices
  • Hidden Vibrator
  • Heroine with Swimsuits
  • Group Sex of Multiple Females and Males
Rating 6.9517 Users
Gibo no Toiki ~Haitokushin ni Tadayou Haha no Iroka~
Gibo no Toiki ~Haitokushin ni Tadayou Haha no Iroka~
NAN%
Tags
  • Shopkeeper Heroine
  • Heroine with Anal Hair
  • In-law Incest
  • Heroine with Armpit Hair
  • Stockings
Rating 7.5750 Users
Shin
Shin'yuu no Kyonyuu Mama to Nakadashi Seikatsu ~ Konna ni Shasei Shitecha Haranjatta ne
NAN%
Tags
  • Discreet Sex
  • Netori
  • Married Heroine
  • Vibrators
  • Quickie Fix Position
Rating 6.0816 Users
Tsuma no Haha to no Haitoku Inkan ~Okaa-san, Nyoubou to Suru yori Koufun Suru yo~
Tsuma no Haha to no Haitoku Inkan ~Okaa-san, Nyoubou to Suru yori Koufun Suru yo~
NAN%
Tags
  • In-law Incest
  • Discreet Sex
  • Netori
  • Infidelity
  • Non-blood-related Mother/Son Incest
Rating 6.4041 Users
Anata to Mita Sakura ~Shimaizuma~
Anata to Mita Sakura ~Shimaizuma~
NAN%
Tags
  • Protagonist's Sister-in-Law as a Heroine
  • Hetare Protagonist
  • Pantyjob
  • Widow Heroine
  • Heroine with Kimono
Rating 6.9021 Users
Shojo Mama
Shojo Mama
NAN%
Tags
  • Non-blood-related Mother/Son Incest
  • Futanari on Male
  • Clumsy Heroine
  • Domicile
  • Cross-dressing
Rating 6.2420 Users
Juku Chichi ~Mama no Karada wa Boku Sen
Juku Chichi ~Mama no Karada wa Boku Sen'you
NAN%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Rounin Protagonist
  • Only Blood-related Heroines
  • Only Older Heroines
  • Naked Heroine with Apron
Rating 6.5739 Users
Gibo to Oba ~Soshite Yuujin no Haha~
Gibo to Oba ~Soshite Yuujin no Haha~
NAN%
Tags
  • Protagonist's Aunt as a Heroine
  • Protagonist's Non-blood-related Mother as a Heroine
  • Non-blood-related Mother/Son Incest
  • Consensual Group Sex of One Female and Several Males
  • Heroine with Kimono
Rating 6.9830 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
  • Highly Animated Sprites
  • Villainous Protagonist
  • Hidden Vibrator
  • Condoms
Rating 6.5234 Users
Shin Onna Kyoushi Yuuwaku Shinro Shidoushitsu
Shin Onna Kyoushi Yuuwaku Shinro Shidoushitsu
NAN%
Tags
  • Protagonist with Health Issues
  • School Nurse Support Character
  • School Nurse Heroine
  • Heroine with Sport Bloomers
  • Remote-controlled Vibrator
Rating 6.7027 Users
Shukubo no Uzuki ~Hitozuma, Miboujin no Ureta Karada to Amai Toiki~
Shukubo no Uzuki ~Hitozuma, Miboujin no Ureta Karada to Amai Toiki~
NAN%
Tags
  • Ejaculation Forewarner
  • Built-in Flowchart
  • Co-worker Heroine
  • Widow Heroine
  • Stockings
Rating 7.2366 Users
Miboujin Sanae "Watashi ga Hajimete de Ii no......?"
Miboujin Sanae "Watashi ga Hajimete de Ii no......?"
NAN%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Heroine with Inverted Nipples
  • Alcoholism
  • Female Protagonist for a Short Time
  • Blood-related Mother/Son Incest
Rating 7.3389 Users
Shoujo Rensa ~Heart of the Distortion~
Shoujo Rensa ~Heart of the Distortion~
NAN%
Tags
  • Sensual Biting
  • Mesugaki Heroine
  • Futanari on Male
  • Clothed Female Naked Male
  • Female Domination
Rating 6.3617 Users
Hitozuma Dorei Keikaku
Hitozuma Dorei Keikaku
NAN%
Tags
  • Urination Fetish
  • Dramatic Love Triangle
  • Revenge
  • Heroine with Garter Belt
  • Protagonist's Sister as a Support Character
Rating 6.9124 Users
Shimaizuma ~Shimaizuma 3~
Shimaizuma ~Shimaizuma 3~
NAN%
Tags
  • Asian-style Manor
  • Heroine With Kansai Accent
  • Childishly Violent Heroine
  • Unrequited Love
  • Brief Branches Only
Rating 7.2538 Users
Koitsuma Biyori ~Yukino-san wa Hitozuma Kanrinin~
Koitsuma Biyori ~Yukino-san wa Hitozuma Kanrinin~
NAN%
Tags
  • Divorcee Heroine
  • Apartment Building
  • Track Display
  • University Student Protagonist
  • Heroine with Children
Rating 7.0746 Users
Hitozuma♪ Kasumi-san ~Oyako to Kyoudou Seikatsu~
Hitozuma♪ Kasumi-san ~Oyako to Kyoudou Seikatsu~
43%
Tags
  • Aunt/Niece Incest
  • Protagonist's Aunt as a Heroine
  • Aunt/Nephew Incest
  • Blood-related Aunt/Nephew Incest
  • Heroine with Flat Chest (Non-Loli)
Rating 7.3134 Users
Kanjuku Shimai ~Haha Futari Chichi Shibori~
Kanjuku Shimai ~Haha Futari Chichi Shibori~
39%
Tags
  • Blood-related Aunt/Nephew Incest
  • Rounin Protagonist
  • Protagonist's Aunt as a Heroine
  • Protagonist's Blood-related Mother as a Heroine
  • Heroine with Tights
Rating 6.5624 Users
Shojo Mama
Shojo Mama
36%
Tags
  • Non-blood-related Mother/Son Incest
  • Futanari on Male
  • Clumsy Heroine
  • Domicile
  • Cross-dressing
Rating 6.2420 Users
Anata to Mita Sakura ~Shimaizuma~
Anata to Mita Sakura ~Shimaizuma~
36%
Tags
  • Protagonist's Sister-in-Law as a Heroine
  • Hetare Protagonist
  • Pantyjob
  • Widow Heroine
  • Heroine with Kimono
Rating 6.9021 Users
Tsuma no Haha to no Haitoku Inkan ~Okaa-san, Nyoubou to Suru yori Koufun Suru yo~
Tsuma no Haha to no Haitoku Inkan ~Okaa-san, Nyoubou to Suru yori Koufun Suru yo~
36%
Tags
  • In-law Incest
  • Discreet Sex
  • Netori
  • Infidelity
  • Non-blood-related Mother/Son Incest
Rating 6.4041 Users
Gibo no Toiki ~Haitokushin ni Tadayou Haha no Iroka~
Gibo no Toiki ~Haitokushin ni Tadayou Haha no Iroka~
35%
Tags
  • Shopkeeper Heroine
  • Heroine with Anal Hair
  • In-law Incest
  • Heroine with Armpit Hair
  • Stockings
Rating 7.5750 Users
Shin
Shin'yuu no Kyonyuu Mama to Nakadashi Seikatsu ~ Konna ni Shasei Shitecha Haranjatta ne
35%
Tags
  • Discreet Sex
  • Netori
  • Married Heroine
  • Vibrators
  • Quickie Fix Position
Rating 6.0816 Users
Hitozuma♪ Kasumi-san 2 ~Oku-sama - Miboujin Owner to Kyoudou Seikatsu~
Hitozuma♪ Kasumi-san 2 ~Oku-sama - Miboujin Owner to Kyoudou Seikatsu~
34%
Tags
  • Only Adult Heroines
  • Vaginal Gaping
  • Widow Heroine
  • Stockings
  • Sexual Cosplay
Rating 7.1720 Users
Hitozuma Onna Kyoushi Reika ~Nyuujoku no Mesu Dorei~
Hitozuma Onna Kyoushi Reika ~Nyuujoku no Mesu Dorei~
33%
Tags
  • Heroine with Beauty Mark
  • Sexual Devices
  • Hidden Vibrator
  • Heroine with Swimsuits
  • Group Sex of Multiple Females and Males
Rating 6.9517 Users
Gibo to Oba ~Soshite Yuujin no Haha~
Gibo to Oba ~Soshite Yuujin no Haha~
33%
Tags
  • Protagonist's Aunt as a Heroine
  • Protagonist's Non-blood-related Mother as a Heroine
  • Non-blood-related Mother/Son Incest
  • Consensual Group Sex of One Female and Several Males
  • Heroine with Kimono
Rating 6.9830 Users
Shin Onna Kyoushi Yuuwaku Shinro Shidoushitsu
Shin Onna Kyoushi Yuuwaku Shinro Shidoushitsu
32%
Tags
  • Protagonist with Health Issues
  • School Nurse Support Character
  • School Nurse Heroine
  • Heroine with Sport Bloomers
  • Remote-controlled Vibrator
Rating 6.7027 Users
Miboujin Sanae "Watashi ga Hajimete de Ii no......?"
Miboujin Sanae "Watashi ga Hajimete de Ii no......?"
32%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Heroine with Inverted Nipples
  • Alcoholism
  • Female Protagonist for a Short Time
  • Blood-related Mother/Son Incest
Rating 7.3389 Users
Hitozuma Dorei Keikaku
Hitozuma Dorei Keikaku
32%
Tags
  • Urination Fetish
  • Dramatic Love Triangle
  • Revenge
  • Heroine with Garter Belt
  • Protagonist's Sister as a Support Character
Rating 6.9124 Users
Koitsuma Biyori ~Yukino-san wa Hitozuma Kanrinin~
Koitsuma Biyori ~Yukino-san wa Hitozuma Kanrinin~
32%
Tags
  • Divorcee Heroine
  • Apartment Building
  • Track Display
  • University Student Protagonist
  • Heroine with Children
Rating 7.0746 Users
Gakushoku no Oba-san ~Kaa-san no Shiru no Aji~
Gakushoku no Oba-san ~Kaa-san no Shiru no Aji~
32%
Tags
  • Unbeknown Incest
  • Yamato Nadeshiko Heroine
  • Heroine with Children
  • Cook Heroine
  • Mother/Son Romance
Rating 7.3257 Users
Aneimo ~Ai to H no Step Up~
Aneimo ~Ai to H no Step Up~
32%
Tags
  • Oneesan-type Heroine
  • Heroine with Chinese Dress
  • Gauge Display
  • Harem Ending
  • Imouto-type Heroine
Rating 6.8912 Users
Mariko-sanchi no Seijijou ~Oba-san wa Boku no Mono~
Mariko-sanchi no Seijijou ~Oba-san wa Boku no Mono~
31%
Tags
  • Aunt/Nephew Incest
  • Protagonist's Aunt as a Heroine
  • Divorcee Heroine
  • Protagonist's Cousin as a Heroine
  • Childishly Violent Heroine
Rating 6.8628 Users
Shimaizuma Marriage Disk - Shimaizuma Bubuzuke
Shimaizuma Marriage Disk - Shimaizuma Bubuzuke
31%
Tags
  • Asian-style Manor
  • Heroine With Kansai Accent
  • Childishly Violent Heroine
  • Married Heroine
  • Central Heroine
Rating 7.3820 Users
Gibo no Milk wa Mitsu no Aji ~Ippai Nonde, Amaete ne~
Gibo no Milk wa Mitsu no Aji ~Ippai Nonde, Amaete ne~
30%
Tags
  • Non-blood-related Mother/Son Incest
  • Adult Breast Sucking
  • Only Protagonist's Relatives as Heroine(s)
  • Netori
  • University Student Protagonist
Rating 6.4420 Users
Sougeki no Jaeger
Sougeki no Jaeger
30%
Tags
  • Action
  • Changeable Font
  • Fighting Protagonist
  • Combat with Bladed Weapons
  • Personal Armed Combat
Rating 5.1825 Users
Tsuma no Haha Sayuri
Tsuma no Haha Sayuri
30%
Tags
  • In-law Incest
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Protagonist's Aunt as a Heroine
  • Non-blood-related Mother/Son Incest
  • May-December Romance
Rating 7.3685 Users
Hitozuma Yukino to... ~Tsuma ga Onna ni Kawaru Toki~
Hitozuma Yukino to... ~Tsuma ga Onna ni Kawaru Toki~
30%
Tags
  • Heroine with Kimono
  • Sexual Devices
  • Group Sex of One Female and Several Males
  • Group Sex of Multiple Females and Males
  • Married Heroine
Rating 6.5013 Users
Kinshin Souai ~Haha ni Koi Shita Boku~
Kinshin Souai ~Haha ni Koi Shita Boku~
30%
Tags
  • Haraguro Heroine
  • Only One Good Ending
  • Dildos
  • Villainous Heroine
  • Tribadism
Rating 6.6430 Users
Bijukubo "Iyarashii Kaa-san de Gomenne..."
Bijukubo "Iyarashii Kaa-san de Gomenne..."
30%
Tags
  • Only Older Heroines
  • Blood-related Aunt/Nephew Incest
  • Incest Romance
  • Obacon
  • Pregnancy Good Ending
Rating 7.49119 Users

Jukubo Onsen has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
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Tags (38 total)

NameScoreImportanceWeight
Only Non-Virgin Heroines3.001.775.32
Hotel2.002.324.64
Protagonist's Non-blood-related Mother as a Heroine2.002.174.34
Onsen2.002.084.16
Clothed Male Naked Female2.002.084.15
Heroine with Kimono2.001.883.77
Threesome Ending2.001.743.48
Reverse Missionary2.001.683.37
Ejaculation Choice2.001.533.05
Anal Fingering2.001.482.95
Married Heroine2.001.422.85
Perverted Heroine2.001.412.82
Harem Ending2.001.412.81
Reverse Cowgirl2.001.332.66
Sounds of Copulation2.001.292.58
Twin Blowjob2.001.292.57
Heroine with Big Breasts3.000.842.51
Vaginal Fingering2.001.252.50
Single Handjob2.001.242.49
Heroine with Sexual Experience2.001.212.42
Single Boobjob2.001.152.29
Adult Heroine2.001.132.27
Anal Sex2.001.132.26
Quickie Fix Position2.001.122.23
Bondage2.001.112.22
Sixty-nine2.001.072.15
Sitting Sex2.001.062.11
Naked Sprites2.001.052.11
Outdoor Sex2.001.001.99
Single Blowjob2.000.951.90
Missionary Position2.000.941.88
Cunnilingus2.000.931.86
Group Sex of One Male and Several Females2.000.921.83
Cowgirl2.000.841.68
Multiple Endings2.000.671.34
Nukige2.000.651.30
Male Protagonist2.000.300.60
ADV2.000.140.29

Traits (94 total)

NameCharactersImportanceWeight
Crotchless Panties Clothes22.412.64
Son Complex Personality13.642.52
Widow Role22.202.42
Mofuku Clothes13.432.38
Non-blood-related Incest Engages in (Sexual)22.152.37
Open Cup Baby-doll Clothes13.292.28
Wedding Ring Clothes22.002.20
Mother Complex Personality13.112.15
Yukata Clothes21.852.03
Haori Clothes12.691.87
Single Parent Role12.511.74
Non-blood-related Son Role12.491.72
Sex in Water Engages in (Sexual)21.561.72
Big Breast Sizes Body21.561.71
Open Cup Bra Clothes12.391.65
Non-blood-related Mother Role12.371.64
Magic Wand Subject of (Sexual)12.371.64
Reverse Missionary Engages in (Sexual)12.361.63
Seventh Posture Subject of (Sexual)21.461.61
Twin Blowjob Subject of (Sexual)12.311.60
Twin Blowjob Engages in (Sexual)21.451.59
Bondage Sex Engages in (Sexual)12.281.58
Reverse Cowgirl Engages in (Sexual)12.221.54
Masturbation Engages in (Sexual)21.401.54
Spoons Engages in (Sexual)12.211.53
Seventh Posture Engages in (Sexual)12.191.52
Pubic Hair Hair21.341.47
Half-orphan Role12.111.46
Tominagi Engages in (Sexual)12.111.46
Anal Fingering Engages in (Sexual)12.051.42
Hime Cut Hair12.021.40
Butterfly Engages in (Sexual)12.021.40
Yamato Nadeshiko Role12.001.38
Sixty-nine Engages in (Sexual)21.261.38
Straight Hair30.941.31
Quickie Fix Engages in (Sexual)11.881.30
Boobjob Subject of (Sexual)11.861.29
Sexual Blindfold Subject of (Sexual)11.861.29
Cunnilingus Subject of (Sexual)21.161.28
Shirt Clothes21.161.27
Sitting Sex Engages in (Sexual)11.821.26
Mature Personality11.811.26
Hidden Eyes11.801.25
Bun Hair11.771.23
Anal Sex Engages in (Sexual)11.761.22
Handjob Subject of (Sexual)11.751.22
Deredere Personality11.741.21
Missionary Engages in (Sexual)11.741.21
Reverse Missionary Subject of (Sexual)11.741.20
Quickie Fix Subject of (Sexual)21.081.19
Cowgirl Engages in (Sexual)11.711.19
Anal Fingering Subject of (Sexual)11.711.19
Coat Clothes11.701.18
Boobjob Engages in (Sexual)21.071.17
Sitting Sex Subject of (Sexual)21.061.17
Spoons Subject of (Sexual)11.671.16
Relaxed Personality11.641.13
Pervert Personality11.631.13
Reverse Cowgirl Subject of (Sexual)11.631.13
Kind Personality21.031.13
Vaginal Fingering Engages in (Sexual)11.611.12
Grey Eyes11.601.11
Bondage Sex Subject of (Sexual)11.581.10
Kimono Clothes11.571.09
Jeans Clothes11.551.08
Cunnilingus Engages in (Sexual)11.551.07
Refined Personality11.541.07
Hard Worker Personality11.541.07
Pendant Necklace Clothes11.521.05
Blowjob Subject of (Sexual)11.521.05
Cowgirl Subject of (Sexual)20.951.05
French Kiss Engages in (Sexual)11.481.02
Teasing Engages in11.441.00
Blunt Bangs Hair11.400.97
Hosome Eyes11.370.95
Tominagi Subject of (Sexual)11.360.94
Blowjob Engages in (Sexual)20.760.84
Anal Sex Subject of (Sexual)11.190.82
Trousers Clothes11.190.82
Butterfly Subject of (Sexual)11.170.81
Group Sex of One Male and Several Females Engages in (Sexual)11.170.81
Outdoor Sex Engages in (Sexual)11.160.80
Handjob Engages in (Sexual)11.160.80
Missionary Subject of (Sexual)11.120.77
Brown Hair20.680.75
Vaginal Fingering Subject of (Sexual)11.080.75
Violet Eyes11.050.73
Spiky Bangs Hair11.000.69
Waist Length+ Hair10.810.56
Black Hair10.810.56
Young-adult Body10.760.53
Long Hair10.750.52
Short Hair10.610.42
Pale Body10.370.25