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Summary

There exists an island with a Shrine, where a Snake God is worshiped. The deity demands that the siblings of the Shrine marry each other, and, if the precept is broken, a curse supposedly will fall upon the family. Protagonist's father did not follow this custom and married a woman, who was not related to him by blood. He fathered a son (the protagonist) and a daughter. After their father dies, their mother begins to act weird, while a mysterious man shows up on the island, asking about the old family custom and the curse....

Rinjin ~Tonari no Kirei na Okaa-san wa Suki Desu ka?~
Rinjin ~Tonari no Kirei na Okaa-san wa Suki Desu ka?~
NAN%
Tags
  • Autobukkake
  • Cross-dressing
  • Flat Tints Only
  • Internal Exhibition of Sex
  • Heroine's Mother as a Heroine
Rating 5.8727 Users
Nagaruboshi -a wish star-
Nagaruboshi -a wish star-
NAN%
Tags
  • Protagonist's Sister as a Support Character
  • Pure Love Story
  • Summer
  • Deredere Heroine
  • No Common Sense Heroine
Rating 6.8038 Users
AI Love: Koisuru Otome wa Kikaijikake
AI Love: Koisuru Otome wa Kikaijikake
NAN%
Tags
  • Technician Protagonist
  • Robot Heroine
  • Scientist Protagonist
  • AI Heroine
  • Under the Same Roof
Rating 7.0531 Users
Yankatsu! ~Yandere Futago to Hone no Zui made Icharabu Seikatsu Suru Hibi~
Yankatsu! ~Yandere Futago to Hone no Zui made Icharabu Seikatsu Suru Hibi~
NAN%
Tags
  • Shimaidon with Twins Ending
  • Shimaidon Ending
  • Balls Sucking
  • Yandere Heroine
  • Tribadism on Penis
Rating 5.8423 Users
Koishi Irodoru Seigiranman
Koishi Irodoru Seigiranman
NAN%
Tags
  • Superheroes
  • Boarding House
  • Superhero(ine) Protagonist
  • Superheroine
  • Has Window Transparency Setting
Rating 7.0329 Users
Kyonyuu Hitozuma Saimin Tsuugaku ~Watashi wa Hitozuma Dakara, Gakuen de H Suru no wa Atarimae~
Kyonyuu Hitozuma Saimin Tsuugaku ~Watashi wa Hitozuma Dakara, Gakuen de H Suru no wa Atarimae~
NAN%
Tags
  • Heroine with Sport Bloomers
  • Boobs on Glass
  • Suspension Bondage
  • Erotic Mind Control
  • Teacher Protagonist
Rating 5.9226 Users
Shinsou Kenki Arch Saver ~Mazoku Kaihou~
Shinsou Kenki Arch Saver ~Mazoku Kaihou~
NAN%
Tags
  • Avoidable Rape
  • Read Text Marking
  • Unavoidable Heroine Rape
  • Monster Rape
  • Inflation
Rating 6.8122 Users
Yuganda USO no KOI to letter
Yuganda USO no KOI to letter
NAN%
Tags
  • Only Avoidable Sex with Others
  • Pretending Protagonist
  • Dog Cosplay
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Cousin Romance
Rating 6.8425 Users
Mama to no Amai Seikatsu
Mama to no Amai Seikatsu
NAN%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Mother/Son Romance
  • Shota Protagonist
  • Blood-related Mother/Son Incest
  • Widow Heroine
Rating 6.0821 Users
Tantei Seven
Tantei Seven
NAN%
Tags
  • Oppai Loli Heroine
  • Open Relationship
  • Highly Animated Sprites
  • Shimaidon with Twins
  • Twin Buttjob
Rating 6.8334 Users
Motto! Josou de Haramasete
Motto! Josou de Haramasete
NAN%
Tags
  • Quadruple+ Blowjob
  • Foolish Parent Support Character
  • Trap Protagonist
  • Sex Under the Necessity
  • Sex Change
Rating 6.3422 Users
Natsu Koi!
Natsu Koi!
NAN%
Tags
  • Transfer Student Heroine
  • Countryside
  • Late Branching Plot
  • Energetic Heroine
  • Mutual Masturbation
Rating 7.1029 Users
Wafuu Seiso na Kurokami JK wa Do Hentai no Futanari Do Mazo ~Binkan Kyokon Chinpo wa Nani o Sarete mo Shasei Shichau~
Wafuu Seiso na Kurokami JK wa Do Hentai no Futanari Do Mazo ~Binkan Kyokon Chinpo wa Nani o Sarete mo Shasei Shichau~
NAN%
Tags
  • Futanari Protagonist
  • Masochist Protagonist
  • Ballbusting
  • Protagonist with Phimosis
  • Big Breast Sizes Protagonist
Rating 6.1223 Users
Gakuen no Ikenie Nagusami Mono to Kashita Kyonyuu Furyou Shoujo ~Hakudaku ni Okasareru Kasshoku & Daniku no Kyouen~
Gakuen no Ikenie Nagusami Mono to Kashita Kyonyuu Furyou Shoujo ~Hakudaku ni Okasareru Kasshoku & Daniku no Kyouen~
NAN%
Tags
  • Delinquent Heroine
  • Muscular Heroine
  • Autosave Only
  • Dark Skinned Heroine
  • Heroine with Inverted Nipples
Rating 6.6734 Users
Teakamamire no Fukushuu
Teakamamire no Fukushuu
NAN%
Tags
  • Japanese Idols
  • Idol Heroine
  • Twin Blowjob
  • Heroine with Sexual Experience
  • Lesbian Sex
Rating 6.5423 Users
Doutei Help! ~Hatsu Kano no Tame ni Fuuzoku de Tokkun~
Doutei Help! ~Hatsu Kano no Tame ni Fuuzoku de Tokkun~
NAN%
Tags
  • Indecisive Protagonist
  • Timid Protagonist
  • Oyakodon Ending
  • Protagonist's Girlfriend as a Heroine
  • Heroine's Mother as a Heroine
Rating 6.3516 Users
Do S na Sparta Kyonyuu Jokyoushi o Kyokon de Do M na Haramase Onaho ni Shita Gakuen Seikatsu Nisshi
Do S na Sparta Kyonyuu Jokyoushi o Kyokon de Do M na Haramase Onaho ni Shita Gakuen Seikatsu Nisshi
NAN%
Tags
  • Heroine with Crotchless Clothing
  • Non-consensual Erotic Humiliation
  • Sexual Slavery (Choukyou Variation)
  • Sex in a Classroom
  • Ahegao
Rating 5.9936 Users
Sin Kourin Tenshi En Ciel Rena ~Reincarnation~
Sin Kourin Tenshi En Ciel Rena ~Reincarnation~
NAN%
Tags
  • Mahou Shoujo Protagonist
  • Corruption of Characters
  • Strong Female Protagonist
  • High Amounts of Rape
  • Mahou Shoujo Heroine
Rating 6.6922 Users
Chikan Densha Kyonyuu Otori Sousakan ~Nerawareta Ureta Nikutai~
Chikan Densha Kyonyuu Otori Sousakan ~Nerawareta Ureta Nikutai~
NAN%
Tags
  • Molestation on Public Transport
  • Unavoidable Protagonist Rape
  • Chikan
  • Sexual Slavery (Choukyou Variation)
  • Sex in a Vehicle
Rating 6.2723 Users
Gyaru Kanshu Rina-chan no M Otoko-ka Seikyouiku Shidou
Gyaru Kanshu Rina-chan no M Otoko-ka Seikyouiku Shidou
NAN%
Tags
  • Female Domination Only
  • Gyaru Heroine
  • Brief Branches Only
  • Police Officer Heroine
  • Reverse Rape
Rating 6.2533 Users
Cleopatra ga Yattekita!? ~Gendai ni Kourin Shita Kodai Joou to Nure Suke Seiseikatsu~
Cleopatra ga Yattekita!? ~Gendai ni Kourin Shita Kodai Joou to Nure Suke Seiseikatsu~
NAN%
Tags
  • Heroine Based on Real Person
  • Dark Skinned Heroine
  • Single Footjob
  • Only Virgin Heroines
  • Group Sex of One Female and Several Males
Rating 6.6323 Users
Onna Ninja Azusa vs Orc 3 ~Injuu-tachi no Oukoku~
Onna Ninja Azusa vs Orc 3 ~Injuu-tachi no Oukoku~
NAN%
Tags
  • Ninja Protagonist
  • Kunoichi Heroine
  • Unavoidable Protagonist Rape
  • Strong Female Protagonist
  • Orcs
Rating 7.6120 Users
Akumade, Kore wa ~ no Monogatari
Akumade, Kore wa ~ no Monogatari
NAN%
Tags
  • Programmer Heroine
  • Summer
  • Actress Heroine
  • Multiple Route Mystery
  • Built-in Flowchart
Rating 6.9028 Users
Himemiko Iden Jouitai
Himemiko Iden Jouitai
NAN%
Tags
  • Completely Avoidable Protagonist Rape
  • Miko Protagonist
  • Nude Filter
  • Rape on Defeat
  • Combat with Bladed Weapons
Rating 6.1620 Users
Hyoui Kanojo ~Tsukikano
Hyoui Kanojo ~Tsukikano
30%
Tags
  • Long Common Route
  • Heroine with Eye Covering Hairstyle
  • Office Lady Heroine
  • Molestation on Public Transport
  • Ghost Heroine
Rating 6.8229 Users
Enkou JK to Sapo Oji-san ~Love Pako Houkago Bukatsudou~
Enkou JK to Sapo Oji-san ~Love Pako Houkago Bukatsudou~
28%
Tags
  • Molestation on Public Transport
  • Twin Handjob
  • Gyaru Heroine
  • Sex Involving Prostitution
  • Condoms
Rating 6.6720 Users
Gakuen no Ikenie Nagusami Mono to Kashita Kyonyuu Furyou Shoujo ~Hakudaku ni Okasareru Kasshoku & Daniku no Kyouen~
Gakuen no Ikenie Nagusami Mono to Kashita Kyonyuu Furyou Shoujo ~Hakudaku ni Okasareru Kasshoku & Daniku no Kyouen~
28%
Tags
  • Delinquent Heroine
  • Muscular Heroine
  • Autosave Only
  • Dark Skinned Heroine
  • Heroine with Inverted Nipples
Rating 6.6734 Users
Wafuu Seiso na Kurokami JK wa Do Hentai no Futanari Do Mazo ~Binkan Kyokon Chinpo wa Nani o Sarete mo Shasei Shichau~
Wafuu Seiso na Kurokami JK wa Do Hentai no Futanari Do Mazo ~Binkan Kyokon Chinpo wa Nani o Sarete mo Shasei Shichau~
28%
Tags
  • Futanari Protagonist
  • Masochist Protagonist
  • Ballbusting
  • Protagonist with Phimosis
  • Big Breast Sizes Protagonist
Rating 6.1223 Users
Natsu Koi!
Natsu Koi!
27%
Tags
  • Transfer Student Heroine
  • Countryside
  • Late Branching Plot
  • Energetic Heroine
  • Mutual Masturbation
Rating 7.1029 Users
Tantei Seven
Tantei Seven
27%
Tags
  • Oppai Loli Heroine
  • Open Relationship
  • Highly Animated Sprites
  • Shimaidon with Twins
  • Twin Buttjob
Rating 6.8334 Users
Motto! Josou de Haramasete
Motto! Josou de Haramasete
27%
Tags
  • Quadruple+ Blowjob
  • Foolish Parent Support Character
  • Trap Protagonist
  • Sex Under the Necessity
  • Sex Change
Rating 6.3422 Users
Yuganda USO no KOI to letter
Yuganda USO no KOI to letter
26%
Tags
  • Only Avoidable Sex with Others
  • Pretending Protagonist
  • Dog Cosplay
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Cousin Romance
Rating 6.8425 Users
Mama to no Amai Seikatsu
Mama to no Amai Seikatsu
26%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Mother/Son Romance
  • Shota Protagonist
  • Blood-related Mother/Son Incest
  • Widow Heroine
Rating 6.0821 Users
Doutei Help! ~Hatsu Kano no Tame ni Fuuzoku de Tokkun~
Doutei Help! ~Hatsu Kano no Tame ni Fuuzoku de Tokkun~
26%
Tags
  • Indecisive Protagonist
  • Timid Protagonist
  • Oyakodon Ending
  • Protagonist's Girlfriend as a Heroine
  • Heroine's Mother as a Heroine
Rating 6.3516 Users
Sin Kourin Tenshi En Ciel Rena ~Reincarnation~
Sin Kourin Tenshi En Ciel Rena ~Reincarnation~
26%
Tags
  • Mahou Shoujo Protagonist
  • Corruption of Characters
  • Strong Female Protagonist
  • High Amounts of Rape
  • Mahou Shoujo Heroine
Rating 6.6922 Users
Gyaru Kanshu Rina-chan no M Otoko-ka Seikyouiku Shidou
Gyaru Kanshu Rina-chan no M Otoko-ka Seikyouiku Shidou
26%
Tags
  • Female Domination Only
  • Gyaru Heroine
  • Brief Branches Only
  • Police Officer Heroine
  • Reverse Rape
Rating 6.2533 Users
Onna Ninja Azusa vs Orc 3 ~Injuu-tachi no Oukoku~
Onna Ninja Azusa vs Orc 3 ~Injuu-tachi no Oukoku~
26%
Tags
  • Ninja Protagonist
  • Kunoichi Heroine
  • Unavoidable Protagonist Rape
  • Strong Female Protagonist
  • Orcs
Rating 7.6120 Users
Himemiko Iden Jouitai
Himemiko Iden Jouitai
25%
Tags
  • Completely Avoidable Protagonist Rape
  • Miko Protagonist
  • Nude Filter
  • Rape on Defeat
  • Combat with Bladed Weapons
Rating 6.1620 Users
Uragiri no Netorase ~Kokoro made Otosarete Shimatta Saiaizuma Aina
Uragiri no Netorase ~Kokoro made Otosarete Shimatta Saiaizuma Aina
25%
Tags
  • Netorase
  • Protagonist's Wife as a Heroine
  • Heroine Having Sex with Others
  • Consumption of Pornography
  • Only Adult Heroines
Rating 5.5335 Users
Matty
Matty
25%
Tags
  • Shotacon
  • Protagonist's Aunt as a Heroine
  • Shota Protagonist
  • Straight Shotacon
  • Short Sexual Scenes
Rating 6.8929 Users
Neko no Onee-chan ga Oshiete Kureta Koto
Neko no Onee-chan ga Oshiete Kureta Koto
25%
Tags
  • Shotacon
  • Catgirl Heroine
  • Shota Protagonist
  • Straight Shotacon
  • Skin Color Selection
Rating 6.8524 Users
Chocolate Princess! ~Ingoku no!? Homestay~
Chocolate Princess! ~Ingoku no!? Homestay~
25%
Tags
  • Huge Insertion
  • Mermaid Heroine
  • Gaping
  • Inflation
  • Heroine with Visible Panties
Rating 6.9527 Users
Kyonyuu Maou no Haiboku ~Yuusha ni Yarareta Mazoku no Joou to Himegimi~
Kyonyuu Maou no Haiboku ~Yuusha ni Yarareta Mazoku no Joou to Himegimi~
24%
Tags
  • Wormhole Sex
  • Maou Heroine
  • Heroine with Leotard
  • Corruption of Characters
  • Oyakodon
Rating 7.2134 Users
BRAVA!!
BRAVA!!
24%
Tags
  • Theater
  • Drama Club
  • Normal Scene Recollection
  • Actress Heroine
  • Episodic Story
Rating 6.8730 Users
Ryoubo -Maternity Insult-
Ryoubo -Maternity Insult-
24%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
  • Body Piercing
  • Heroine With Kansai Accent
  • Pregnancy
Rating 6.8036 Users
Masou no Kuni no Alice: Alice in Immoral-Land
Masou no Kuni no Alice: Alice in Immoral-Land
24%
Tags
  • Wonderland
  • Nekomimi Hero
  • Symbiote / Parasite
  • Plant Sex
  • Transformation Sequence(s)
Rating 6.8354 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~
24%
Tags
  • Netorare Type B
  • Protagonist's Non-blood-related Sister as a Heroine
  • Shimaidon
  • Middle School Student Heroine
  • Netorare
Rating 6.4323 Users
Girls Book Maker ~Grimm to Sannin no Ohime-sama 2~
Girls Book Maker ~Grimm to Sannin no Ohime-sama 2~
24%
Tags
  • Fairy Tale
  • Linear Plot
  • Tomboy Heroine
  • Heroine with Big Breasts
  • Sexual Content
Rating 7.3636 Users

Koumigami ~Nageki Warau Hebigami, Imouto Naru Monomono ga Tsumugishi Folklore~ 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 (32 total)

NameScoreImportanceWeight
Incest3.002.116.33
Guro2.502.235.58
Reverse Trap Heroine2.002.394.79
Blood-related Aunt/Nephew Incest2.002.354.70
Ryona2.002.324.63
Masochist Heroine2.002.094.18
Futanari on Female2.002.074.14
Futanari Heroine2.001.973.95
Bleep Censor2.001.913.82
Torture2.001.913.82
Bokukko Heroine2.001.813.62
High Sexual Content3.001.053.15
Pregnancy2.001.523.05
Blood-related Brother/Sister Incest2.001.492.97
Double Penetration (Group Sex)2.001.452.90
Skull-fucking1.002.902.90
Protagonist with Voice Acting2.001.362.72
Futanari on Futanari1.002.662.66
Male on Futanari1.002.502.50
Anal Fisting1.002.472.47
Grotesque Body Modification1.002.432.43
Bad Ending(s)2.001.202.39
Protagonist with a Sprite2.001.142.27
Blowjob2.001.112.23
Madness1.001.911.91
Blood-related Mother/Son Incest1.001.851.85
Sexual Content2.500.631.57
Female Domination1.001.441.44
Boobjob1.001.321.32
Anal Penetration1.001.321.32
Protagonist with a Face2.000.641.28
Male Protagonist2.500.300.76

Traits (95 total)

NameCharactersImportanceWeight
Fire Torture Engages in14.102.84
Multiple Arms Body13.522.44
Hakama Clothes22.162.37
Reptile Role13.352.32
Belly Chain Jewellery Clothes13.322.30
Strapless Panties Clothes13.262.26
Snake Person Role13.242.25
Glowing Eyes13.092.14
Ceremonial Japanese Clothing Clothes13.052.12
Off-The-Shoulder Kimono Clothes12.892.00
Self-harm Engages in12.791.94
Reverse-trap Body12.721.89
Vomiting Engages in12.721.88
Geta Clothes12.711.88
Garter Clothes12.711.88
Loincloth Clothes12.661.84
Sarashi Clothes12.641.83
Ribbon Hair Wrap Clothes12.621.82
Nephew Role12.561.78
Death Subject of21.601.76
Kimono Clothes21.561.72
Possession Subject of12.481.72
Nipple Insertion Subject of (Sexual)12.451.69
Monster Birth Engages in12.441.69
Niece Role12.411.67
Zouri Clothes12.391.66
Aunt Role12.371.65
Incest Engages in (Sexual)21.471.61
Transparent Clothes12.311.60
Younger Sister Role21.441.59
Knife Items12.241.55
Insanity Subject of12.231.54
Visible Nipples Body12.161.50
Shapeshifting Engages in12.161.50
Crown Clothes12.161.50
Torn Clothing Clothes12.161.50
Ankle Length Hair12.121.47
Violent Personality12.101.46
Deity Role12.071.44
Tiny Braid Hair12.071.43
Cross-dressing Engages in12.061.43
Robe Clothes12.061.43
Hazel Eyes12.041.41
Inflated Belly Subject of (Sexual)12.041.41
Unusual Hair Ornaments Clothes11.871.30
Twin Braids Hair11.861.29
Son Role11.821.26
Detached Sleeves Clothes11.821.26
Tattoo Body11.801.25
Boku Personality11.781.24
Murder Engages in11.781.24
Non-consensual Sex with Tentacles Engages in (Sexual)11.781.23
Scarf Clothes11.781.23
Older Brother Role11.731.20
Footjob Engages in (Sexual)11.721.19
Small Breasts Body11.671.15
No Bangs Hair11.661.15
Olive Body11.661.15
Ribbon Hair Accessory Clothes11.651.15
Green Eyes21.021.12
Mole Body11.591.10
Older Sister Role11.561.08
Makeup Body11.541.07
Straight Hair20.951.04
Mother Role11.461.01
Daughter Role11.461.01
V Bangs Hair11.410.98
Hair Tie Clothes11.410.97
Blunt Bangs Hair11.400.97
Masturbation Engages in (Sexual)11.390.96
Knee-high Socks Clothes11.380.96
Adult Body11.350.93
White Hair11.330.92
Waist Length+ Hair20.810.89
Parted in Middle Hair11.250.87
Young-adult Body20.760.84
Blowjob Engages in (Sexual)20.760.84
Red Eyes11.200.83
Violet Hair11.190.83
Group Sex of One Male and Several Females Engages in (Sexual)11.170.81
Handjob Engages in (Sexual)11.160.80
Outdoor Sex Engages in (Sexual)11.160.80
Twin Tails Hair11.130.78
Missionary Subject of (Sexual)11.120.77
Brown Hair20.680.75
Glasses Clothes11.080.75
Boobjob Engages in (Sexual)11.070.74
Thigh-high Stockings Clothes11.040.72
Kind Personality11.030.71
Sidehair Hair10.980.68
Slim Body20.580.63
Virgin Sex Engages in (Sexual)10.850.59
Pale Body30.370.51
Teen Body10.620.43
Short Hair10.610.42