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Summary

On the day their two sons left for an overnight study, Naoko and Youko held a dinner party at the Hobara household to relax and have some fun together. A woman came to the party, Rie Funaoka, a junior colleague of Naoko from her days as an office worker. The party is a charming and enjoyable one, the drinks are flowing and before they know it, they are discussing the possibility of playing mahjong. To make up for the lack of players, Rie's brother-in-law, Tadashi, was summoned with a single phone call. Youko comes up with a killer idea to inspire Tadashi who is a ronin, and the idea is stripe mahjong! [From official site]

Shimaizuma Marriage Disk - Shimaizuma Bubuzuke
Shimaizuma Marriage Disk - Shimaizuma Bubuzuke
NAN%
Tags
  • Asian-style Manor
  • Heroine With Kansai Accent
  • Childishly Violent Heroine
  • Married Heroine
  • Central Heroine
Rating 7.4820 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
  • Netorare
  • Clothed Female Naked Male
  • Netorare Type A
  • Office Lady Heroine
  • Drunk Sex
Rating 6.8232 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 6.2624 Users
The Guts! -Maximum Maternity!-
The Guts! -Maximum Maternity!-
NAN%
Tags
  • Shotacon Heroine
  • Muscular Heroine
  • Co-worker Heroine
  • Orekko Heroine
  • Protagonist's Boss as a Heroine
Rating 7.1031 Users
Eroge Shiyou yo!
Eroge Shiyou yo!
NAN%
Tags
  • Romancing a Family
  • Production of Pornography (Drawn)
  • Otaku Protagonist
  • Twin Handjob
  • Armpit Sex
Rating 5.8727 Users
Son of a ☆ Bitch ~Saotome Nobara-chan, Maji Bitch!~
Son of a ☆ Bitch ~Saotome Nobara-chan, Maji Bitch!~
NAN%
Tags
  • Male on Trap
  • Student Council President Heroine
  • Legwear Footjob
  • Group Sex of Multiple Females and Males
  • Female Domination
Rating 6.2323 Users
Ai no Chikara
Ai no Chikara
NAN%
Tags
  • Nurse Heroine
  • High Amount of Bad Endings
  • Based on Actual Events
  • Hospital
  • Salaryman Protagonist
Rating 7.3322 Users
Douryou no Oku-san ~Netori Tsuma, Netorare Tsuma~
Douryou no Oku-san ~Netori Tsuma, Netorare Tsuma~
NAN%
Tags
  • Netori
  • Clothed Male Naked Female
  • Wake-up Sex
  • Love Hotel
  • Sex in a Vehicle
Rating 7.0826 Users
Haramasete Hitozuma
Haramasete Hitozuma
NAN%
Tags
  • Protagonist's Boss as a Heroine
  • Unavoidable Heroine Rape
  • Sex Involving Drugs
  • Rape with Blackmail
  • Blackmail
Rating 6.7920 Users
In
In'yoku Celeb Tsuma 2 ~Chijoku Seisai~
NAN%
Tags
  • Sexual Slavery
  • Netori
  • Body Piercing
  • Married Heroine
  • Modern Day Japan
Rating 6.8621 Users
Yarasete! Teacher
Yarasete! Teacher
NAN%
Tags
  • Straight Shotacon
  • School Nurse Support Character
  • Shota Protagonist
  • Perverted Protagonist
  • School
Rating 6.4130 Users
Bosei ~Mama Club~
Bosei ~Mama Club~
NAN%
Tags
  • Protagonist's Non-blood-related Mother as a Heroine
  • Non-blood-related Mother/Son Incest
  • Mother Support Character
  • Shota Protagonist
  • Straight Shotacon
Rating 6.7546 Users
Juicy Age
Juicy Age
NAN%
Tags
  • Oppai Loli Heroine
  • Shota Protagonist
  • Central Heroine
  • Heroine with Beauty Mark
  • Promiscuous Heroine
Rating 6.7139 Users
Tsukikage Ars Magika -Fukagyaku Shin
Tsukikage Ars Magika -Fukagyaku Shin'iki no Shoujo-tachi-
NAN%
Tags
  • Mayadere Heroine
  • Exorcism
  • Unarmed Fighting Heroine
  • Tactician Protagonist
  • Pragmatic Protagonist
Rating 6.9839 Users
Boy Meets Wives
Boy Meets Wives
NAN%
Tags
  • Middle School Student Protagonist
  • Infidelity
  • Completion Status Indicator
  • Heroine with Children
  • Short Sexual Scenes
Rating 6.7728 Users
Ijikuri Mama
Ijikuri Mama
NAN%
Tags
  • Fake Choices
  • Shotacon
  • Disabled Protagonist
  • Blood-related Mother/Son Incest
  • Straight Shotacon
Rating 5.7938 Users
Hitozuma ga Wakai Juuyoku ni Otosareru Toki
Hitozuma ga Wakai Juuyoku ni Otosareru Toki
NAN%
Tags
  • Netorare Type A
  • Masturbation Involving Food
  • Voyeurism
  • Discreet Phone Sex
  • Shotacon
Rating 6.9123 Users
Ijikuri Mama 2
Ijikuri Mama 2
NAN%
Tags
  • Shotacon
  • Straight Shotacon
  • Protagonist's Blood-related Mother as a Heroine
  • Shota Protagonist
  • Blood-related Mother/Son Incest
Rating 5.5132 Users
Demiparadoxia ∞ Hookerstic - Hokujou Hen
Demiparadoxia ∞ Hookerstic - Hokujou Hen
NAN%
Tags
  • Prostitute Heroine
  • Heroine with Anal Hair
  • Pubic Hair Option
  • Heroine with Armpit Hair
  • Hotel
Rating 6.5824 Users
Nozoki Seikatsu ~Bijin Oyako no Ana to Ana!~
Nozoki Seikatsu ~Bijin Oyako no Ana to Ana!~
NAN%
Tags
  • Voyeurism
  • American Heroine
  • Blood-related Aunt/Nephew Incest
  • Fictional Modern Day Japanese Countryside
  • Protagonist's Aunt as a Heroine
Rating 5.7921 Users
Rin x Sen ~Hakudaku Onna Kyoushi to Yaroudomo~
Rin x Sen ~Hakudaku Onna Kyoushi to Yaroudomo~
NAN%
Tags
  • Clothed Male Naked Female
  • All-boys School
  • Yakuza
  • High Amounts of Rape
  • Teacher Heroine
Rating 7.5723 Users
Hitozuma Dorei Kissa 2
Hitozuma Dorei Kissa 2
NAN%
Tags
  • Rape with Blackmail
  • Blackmail
  • Waitress Heroine
  • Lactation During Sex
  • Group Sex of Multiple Females and Males
Rating 5.7322 Users
Houkago 2 ~Hakudaku no Lesson~
Houkago 2 ~Hakudaku no Lesson~
NAN%
Tags
  • Unavoidable Heroine Rape
  • Rapist Protagonist
  • Heroine with Latex
  • Heroine with Crotchless Clothing
  • High Amounts of Rape
Rating 7.0023 Users
Classmate no Okaa-san -Immoral Teacher-
Classmate no Okaa-san -Immoral Teacher-
NAN%
Tags
  • Masturbation with Object
  • Sexual Fantasizing
  • Widow Heroine
  • Heroine with Tights
  • Naked Heroine with Apron
Rating 6.9822 Users
Zoku Mama Club
Zoku Mama Club
36%
Tags
  • Shota Protagonist
  • Straight Shotacon
  • Mother Support Character
  • School Nurse Heroine
  • Non-blood-related Mother/Son Incest
Rating 6.2737 Users
Grope ~Yami no Naka no Kotori-tachi~
Grope ~Yami no Naka no Kotori-tachi~
35%
Tags
  • Desperation
  • School Sports Club Member Heroine
  • Swimming Club
  • Protagonist's Sister-in-Law as a Heroine
  • Ejaculation Choice
Rating 6.6412 Users
Tsukikage Ars Magika -Fukagyaku Shin
Tsukikage Ars Magika -Fukagyaku Shin'iki no Shoujo-tachi-
30%
Tags
  • Mayadere Heroine
  • Exorcism
  • Unarmed Fighting Heroine
  • Tactician Protagonist
  • Pragmatic Protagonist
Rating 6.9839 Users
Juicy Age
Juicy Age
29%
Tags
  • Oppai Loli Heroine
  • Shota Protagonist
  • Central Heroine
  • Heroine with Beauty Mark
  • Promiscuous Heroine
Rating 6.7139 Users
Bosei ~Mama Club~
Bosei ~Mama Club~
29%
Tags
  • Protagonist's Non-blood-related Mother as a Heroine
  • Non-blood-related Mother/Son Incest
  • Mother Support Character
  • Shota Protagonist
  • Straight Shotacon
Rating 6.7546 Users
In
In'yoku Celeb Tsuma 2 ~Chijoku Seisai~
29%
Tags
  • Sexual Slavery
  • Netori
  • Body Piercing
  • Married Heroine
  • Modern Day Japan
Rating 6.8621 Users
Yarasete! Teacher
Yarasete! Teacher
28%
Tags
  • Straight Shotacon
  • School Nurse Support Character
  • Shota Protagonist
  • Perverted Protagonist
  • School
Rating 6.4130 Users
Douryou no Oku-san ~Netori Tsuma, Netorare Tsuma~
Douryou no Oku-san ~Netori Tsuma, Netorare Tsuma~
28%
Tags
  • Netori
  • Clothed Male Naked Female
  • Wake-up Sex
  • Love Hotel
  • Sex in a Vehicle
Rating 7.0826 Users
Haramasete Hitozuma
Haramasete Hitozuma
28%
Tags
  • Protagonist's Boss as a Heroine
  • Unavoidable Heroine Rape
  • Sex Involving Drugs
  • Rape with Blackmail
  • Blackmail
Rating 6.7920 Users
Ijikuri Mama
Ijikuri Mama
28%
Tags
  • Fake Choices
  • Shotacon
  • Disabled Protagonist
  • Blood-related Mother/Son Incest
  • Straight Shotacon
Rating 5.7938 Users
Ijikuri Mama 2
Ijikuri Mama 2
28%
Tags
  • Shotacon
  • Straight Shotacon
  • Protagonist's Blood-related Mother as a Heroine
  • Shota Protagonist
  • Blood-related Mother/Son Incest
Rating 5.5132 Users
Nozoki Seikatsu ~Bijin Oyako no Ana to Ana!~
Nozoki Seikatsu ~Bijin Oyako no Ana to Ana!~
27%
Tags
  • Voyeurism
  • American Heroine
  • Blood-related Aunt/Nephew Incest
  • Fictional Modern Day Japanese Countryside
  • Protagonist's Aunt as a Heroine
Rating 5.7921 Users
Hitozuma Dorei Kissa 2
Hitozuma Dorei Kissa 2
27%
Tags
  • Rape with Blackmail
  • Blackmail
  • Waitress Heroine
  • Lactation During Sex
  • Group Sex of Multiple Females and Males
Rating 5.7322 Users
Classmate no Okaa-san -Immoral Teacher-
Classmate no Okaa-san -Immoral Teacher-
26%
Tags
  • Masturbation with Object
  • Sexual Fantasizing
  • Widow Heroine
  • Heroine with Tights
  • Naked Heroine with Apron
Rating 6.9822 Users
Shoukoujo Charlotte "Goshujin-sama no Shojo Ningyou"
Shoukoujo Charlotte "Goshujin-sama no Shojo Ningyou"
26%
Tags
  • Butler Heroine
  • Early Modern Period Earth
  • Wealthy Protagonist
  • Ear-Cleaning
  • Butler Support Character
Rating 7.2023 Users
Najimi no Oba-chan ~Batsuichi Jukujo to Inran Miboujin~
Najimi no Oba-chan ~Batsuichi Jukujo to Inran Miboujin~
26%
Tags
  • Widow Heroine
  • Heroine with Armpit Hair
  • Heroine with Kimono
  • Dildos
  • Rope Bondage
Rating 6.8922 Users
Otouto Shibori ~Ane-tachi no Sei Kyouiku~
Otouto Shibori ~Ane-tachi no Sei Kyouiku~
26%
Tags
  • Shotacon
  • Pegging
  • Brother/Sister Incest
  • Footjob
  • Shota Protagonist
Rating 6.1321 Users
Gakuen 2 ~Ingyaku no Zushiki~
Gakuen 2 ~Ingyaku no Zushiki~
26%
Tags
  • School Sports Club Member Heroine
  • Rapist Protagonist
  • Completion Status Indicator
  • Heroine with Sport Bloomers
  • Handcuffed Sex
Rating 6.8320 Users
Mama! Tsuma?
Mama! Tsuma?
26%
Tags
  • Open Relationship
  • Protagonist's Non-blood-related Mother as a Heroine
  • Shota Protagonist
  • Straight Shotacon
  • Netorase
Rating 6.7065 Users
Hitozuma Dorei Kissa
Hitozuma Dorei Kissa
26%
Tags
  • Rape with Blackmail
  • Blackmail
  • Milking (Sexual)
  • Gang Rape
  • Married Heroine
Rating 5.4124 Users
Man
Man'in Densha
26%
Tags
  • Chikan Protagonist
  • Chikan
  • Molestation on Public Transport
  • Sex in a Vehicle
  • Double Handjob
Rating 6.6919 Users
Sokubaku Suru Ane
Sokubaku Suru Ane
25%
Tags
  • Brother/Sister Incest
  • Flat Tints Only
  • Female Domination
  • Pantyjob
  • Pegging
Rating 6.0222 Users
Hitozuma♪ Kasumi-san 2 ~Oku-sama - Miboujin Owner to Kyoudou Seikatsu~
Hitozuma♪ Kasumi-san 2 ~Oku-sama - Miboujin Owner to Kyoudou Seikatsu~
25%
Tags
  • Only Adult Heroines
  • Vaginal Gaping
  • Widow Heroine
  • Stockings
  • Sexual Cosplay
Rating 7.1820 Users
Yuri Killer In
Yuri Killer In'yoku ni Ochiru Yuri-tachi
25%
Tags
  • P.E. Teacher Heroine
  • Hotblooded Protagonist
  • Principal Heroine
  • Narrating Others' Thoughts
  • Pretending Heroine
Rating 7.3444 Users

Mama Mahjong 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 (15 total)

NameScoreImportanceWeight
Mahjong as Gameplay Element3.002.427.25
Protagonist's Sister-in-Law as a Heroine2.002.364.72
Puzzle Game2.002.194.39
Married Heroine3.001.414.24
Triple Blowjob2.002.014.02
Changeable Font2.001.793.57
Mother Support Character2.001.773.54
Adult Heroine3.001.133.40
High Sexual Content2.001.032.07
Missionary Position2.000.931.87
Group Sex of One Male and Several Females1.500.901.35
Big Breast Sizes Heroine0.671.270.85
Male Protagonist2.500.300.75
Blowjob0.671.090.73
ADV2.000.140.29

Traits (107 total)

NameCharactersImportanceWeight
Striptease Engages in (Sexual)33.124.32
In-law Incest Engages in (Sexual)23.193.50
Non-penetrative Sex Engages in (Sexual)22.582.83
Sex with Children Engages in (Sexual)22.522.76
Breast Smothering Subject of (Sexual)13.822.65
Third Grader Role13.732.59
Housewife Role22.312.53
Infidelity Engages in31.822.52
Large Penis Body22.242.47
Reverse Cowgirl Engages in (Sexual)22.242.47
Seduction Engages in22.202.41
Kanendosei Role13.422.37
Triple Blowjob Engages in (Sexual)22.082.29
Wedding Ring Clothes22.012.20
Sex with Others Engages in (Sexual)21.992.18
Vaginal Gaping Engages in (Sexual)21.962.15
Triple Blowjob Subject of (Sexual)12.992.07
Boobjob Subject of (Sexual)21.872.05
Incest Engages in (Sexual)31.472.04
Brother-in-law Role12.942.04
Sitting Sex Engages in (Sexual)21.832.01
Not a Virgin Role31.452.01
Sleep Sex Engages in (Sexual)12.791.94
Ball-cupping Subject of (Sexual)12.791.93
Handjob Subject of (Sexual)21.761.93
Effeminate Personality12.751.91
Cowgirl Engages in (Sexual)21.721.89
Sister-in-law Role12.691.87
Balls Sucking Subject of (Sexual)12.691.87
Doggy Style Engages in (Sexual)21.701.86
Seduction Subject of12.681.86
Pubic Hair Hair31.341.86
Breast Smothering Engages in (Sexual)12.671.85
Elementary School Student Role12.521.74
Sleep Sex Subject of (Sexual)12.511.74
Wife Role21.551.70
Discreet Phone Sex Engages in (Sexual)12.441.69
Blowjob Subject of (Sexual)21.531.68
Kind Personality41.041.67
Sex in Front of an Audience Engages in (Sexual)21.511.66
Group Sex of One Male and Several Females Engages in (Sexual)31.191.65
Androgynous Body12.371.65
Mother Role21.471.61
Office Worker Role12.311.60
Observant Personality12.301.59
Balls Sucking Engages in (Sexual)12.271.58
Black Eyes21.431.57
Promiscuous Personality12.261.57
Sex in School Infirmary Engages in (Sexual)12.241.55
Missionary Subject of (Sexual)31.111.54
Bathroom Sex Engages in (Sexual)21.391.53
Voyeurism Engages in (Sexual)12.171.51
Flustered Personality12.141.49
Bukkake Subject of (Sexual)21.341.48
Vaginal Object Insertion Subject of (Sexual)12.091.45
Sex on Toilet Engages in (Sexual)12.061.43
Vibrator Subject of (Sexual)12.061.43
Docile Personality12.061.43
Butterfly Engages in (Sexual)12.041.41
Overweight Body12.001.38
Voyeurism Subject of11.991.38
Clumsy Personality11.931.34
Younger Brother Role11.901.32
Quickie Fix Engages in (Sexual)11.891.31
Handjob Engages in (Sexual)21.161.27
Short Shorts Clothes11.791.24
Huge Breasts Body11.781.23
Vaginal Masturbation Engages in (Sexual)11.771.23
Proactive Personality11.751.21
Missionary Engages in (Sexual)11.751.21
Nipple Sucking Engages in (Sexual)11.711.19
Quickie Fix Subject of (Sexual)21.081.18
Protective Personality11.701.18
Sex with Protagonist Only Engages in (Sexual)11.691.17
Spiky Hair11.691.17
Boobjob Engages in (Sexual)21.061.17
Reverse Cowgirl Subject of (Sexual)11.641.14
Vaginal Fingering Engages in (Sexual)11.621.13
Shy Personality11.621.12
Sex in Classroom Engages in (Sexual)11.611.12
Medium Breasts Body11.551.07
Blowjob Engages in (Sexual)30.761.05
Cowgirl Subject of (Sexual)20.951.05
Student Role11.481.03
Doggy Style Subject of (Sexual)20.921.01
Nipple Sucking Subject of (Sexual)11.390.96
Masturbation Engages in (Sexual)11.370.95
Knee-high Socks Clothes11.370.95
Kid Body11.360.94
Adult Body11.360.94
Belt Clothes11.280.89
Black Hair20.810.89
Sex in Public Places Engages in (Sexual)11.260.87
Friendly Personality11.230.85
Classmate Role11.230.85
Violet Hair11.190.82
Blue Hair11.190.82
Big Breasts Body11.190.82
Butterfly Subject of (Sexual)11.170.81
Glasses Clothes11.080.75
Vaginal Fingering Subject of (Sexual)11.080.75
Sitting Sex Subject of (Sexual)11.050.73
Short Hair20.610.67
Brown Eyes10.900.62
Virgin Sex Engages in (Sexual)10.840.58
Brown Hair10.680.47
Teen Body10.610.43