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Summary

After defeating the demons, Orion Suns thought she could finally live in peace, enjoying her everyday life and love for Osamu, but she was wrong! The demons were still alive, and worse, their leader, Gildart, has now possessed the boy she loves, using his body to have their way with her! Who else will suffer as the demons run amok while she tries to save her beloved?! [From OtakuStudy]

Nightmare x Sisters ~Ingoku no Sacrifice~
Nightmare x Sisters ~Ingoku no Sacrifice~
NAN%
Tags
  • Nun Protagonist
  • Christian Church
  • Protagonist with Big Breasts
  • Exorcism
  • Cult
Rating 6.63123 Users
Onegai Tasukete!! 2 ~Sosogare Tsuzukeru Seieki~
Onegai Tasukete!! 2 ~Sosogare Tsuzukeru Seieki~
NAN%
Tags
  • Birthrate Decline
  • Human Childbirth
  • Unavoidable Rape
  • Sexual Slavery
  • Student Council
Rating 6.8724 Users
Maou ga Nokoshita Kokuin ~Kijou to Iu Na no Iki Jigoku~
Maou ga Nokoshita Kokuin ~Kijou to Iu Na no Iki Jigoku~
NAN%
Tags
  • Footjob on Multiple Penises
  • Heroine with Armor
  • Armpit Licking
  • Witch Heroine
  • Penis Growth
Rating 6.8823 Users
Seitenkan ~Ore no Naka de Ikeba Ii Daro!?~
Seitenkan ~Ore no Naka de Ikeba Ii Daro!?~
NAN%
Tags
  • Genderbent Sex
  • Sex Change
  • Blood-related Sister/Sister Incest
  • Promiscuity
  • Flat Tints Only
Rating 5.51211 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
Ten
Ten'yoku no Asklein
NAN%
Tags
  • Heroine Rape by Others
  • Heroine from a Different World
  • Transformation Sequence(s)
  • Monster Rape
  • High Amount of Bad Endings
Rating 6.8720 Users
Makai Tenshi Djibril
Makai Tenshi Djibril
NAN%
Tags
  • Non-heroine Only Unavoidable Rape
  • Completely Avoidable Heroine Rape
  • Comedy Rape
  • Rejuvenation
  • Heroine with Visible Panties
Rating 6.8059 Users
Play! Play! Play! Shi
Play! Play! Play! Shi
NAN%
Tags
  • Dying Protagonist
  • Stockings
  • Single Hole Multiple Objects Insertion (obsolete)
  • More Than Seven Heroines
  • Cum on Food
Rating 6.4661 Users
Magical Teacher Sensei wa Majo?
Magical Teacher Sensei wa Majo?
NAN%
Tags
  • P.E. Teacher Heroine
  • Blood-related Aunt/Nephew Incest
  • Principal Heroine
  • Mage Protagonist
  • Shotacon Heroine
Rating 5.39249 Users
Kyousei AV Debut Kamiki Airi 1X-sai ~Jii Tousatsu kara Hajimatta, Chijoku to Haishin no Hibi~
Kyousei AV Debut Kamiki Airi 1X-sai ~Jii Tousatsu kara Hajimatta, Chijoku to Haishin no Hibi~
NAN%
Tags
  • Unavoidable Protagonist Rape
  • Student Club Member Protagonist
  • Rape with Blackmail
  • Public Use (Choukyou or Non-Consensual)
  • Mindbreak
Rating 6.7645 Users
Soukou Kijo Iris
Soukou Kijo Iris
NAN%
Tags
  • Completely Unavoidable Protagonist Rape
  • Brothel
  • Prostitute Protagonist
  • Extraterrestrial
  • Mecha Pilot Protagonist
Rating 6.11290 Users
Mahou Shoujo Kanata TS
Mahou Shoujo Kanata TS
NAN%
Tags
  • Genderbent Sex
  • Gender Bending
  • Body Swapping
  • Heroine with Spats
  • Corruption of Characters
Rating 6.4642 Users
Reizoku no Majo April ~Injoku no Mahou Choukyou~
Reizoku no Majo April ~Injoku no Mahou Choukyou~
NAN%
Tags
  • Fairy Heroine
  • No "Keep Voice on Click" Option
  • Built-in Flowchart
  • Witch Heroine
  • Heroine with Visible Panties
Rating 5.56495 Users
Mahou no Shugo Hime Artemina
Mahou no Shugo Hime Artemina
NAN%
Tags
  • Mahou Shoujo Protagonist
  • Loli Protagonist
  • High Amounts of Rape
  • Ponytail Protagonist
  • Insemination by Non-Humanoids
Rating 6.3025 Users
Ikazuchi no Senshi Raidy III ~Gyakushuu no Jashinkan~
Ikazuchi no Senshi Raidy III ~Gyakushuu no Jashinkan~
NAN%
Tags
  • Monster Girl Support Character
  • Dungeon Crawling Game
  • Fictional Beings
  • Heroine with Visible Panties
  • Lesbian Rape
Rating 6.42162 Users
Hametoku ★ Orikou JK Pet Hazuki & Ayane ~Gakkou de Seishun!~
Hametoku ★ Orikou JK Pet Hazuki & Ayane ~Gakkou de Seishun!~
NAN%
Tags
  • Student Club President Protagonist
  • Big Breast Sizes Protagonist
  • Swimming Club
  • Third-person Narrative
  • Blowbang
Rating 6.5533 Users
Machi Gurumi no Wana ~Hakudaku ni Mamireta Shitai~
Machi Gurumi no Wana ~Hakudaku ni Mamireta Shitai~
NAN%
Tags
  • Long Sexual Scenes
  • Sexual Slavery (Choukyou Variation)
  • Only One Good Ending
  • Office Lady Protagonist
  • Rape with Blackmail
Rating 7.6045 Users
Masou no Kuni no Alice: Alice in Immoral-Land
Masou no Kuni no Alice: Alice in Immoral-Land
NAN%
Tags
  • Wonderland
  • Nekomimi Hero
  • Symbiote / Parasite
  • Plant Sex
  • Transformation Sequence(s)
Rating 6.8354 Users
Majo to Tsurugi to Sen no Tsuki
Majo to Tsurugi to Sen no Tsuki
NAN%
Tags
  • Homunculus Heroine
  • Terrorized by Monsters
  • Mahou Shoujo Protagonist
  • Superpowers
  • Homunculus Protagonist
Rating 7.0228 Users
Anki Renjoku ~Owaranai Seiki no Tettsui~
Anki Renjoku ~Owaranai Seiki no Tettsui~
NAN%
Tags
  • Unavoidable Protagonist Rape
  • Lesbian Rape
  • Living Clothes Sex
  • Huge Insertion
  • Superhero(ine) Protagonist
Rating 5.7521 Users
Gambler ☆ Jessica ~The Erotic Gambling!!~
Gambler ☆ Jessica ~The Erotic Gambling!!~
NAN%
Tags
  • Ship
  • Competition
  • Huge Insertion
  • Inflation
  • Internal Exhibition of Sex
Rating 6.6130 Users
Raikou no Taimashi Nanaho ~Injin Fukkatsu~
Raikou no Taimashi Nanaho ~Injin Fukkatsu~
NAN%
Tags
  • Cum Bath
  • Nipple Insertion
  • Gymnastic Heroine
  • Gaping
  • Dark Skinned Protagonist
Rating 6.4125 Users
Shin Matai Toshi
Shin Matai Toshi
NAN%
Tags
  • Heroine with Catsuit
  • Nympho Protagonist
  • Heroine with Latex
  • Exorcism
  • Vaginal + Anal Tentacle Penetration
Rating 5.8354 Users
ManguSta -Chijoku Fuuki Iinkai-
ManguSta -Chijoku Fuuki Iinkai-
NAN%
Tags
  • Discipline Committee Leader Protagonist
  • Pragmatic Protagonist
  • Student Council Member Heroine
  • Discipline Committee Member Heroine
  • Arrogant Protagonist
Rating 6.8722 Users
Kougyaku no Kishi Milles -Boukyaku no Hate, Inshoku Jutai-
Kougyaku no Kishi Milles -Boukyaku no Hate, Inshoku Jutai-
18%
Tags
  • Unavoidable Rape
  • Plant Sex
  • Third-person Narrative
  • Heroine with Visible Panties
  • Slime Monster Rape
Rating 5.03156 Users
Ikusa Otome Suvia
Ikusa Otome Suvia
15%
Tags
  • Valkyrie Heroine
  • Norse Mythology
  • Falling to Evil (sexual)
  • Deity Protagonist
  • Heroine with Armor
Rating 5.80190 Users
Mahou no Shugo Hime Artemina
Mahou no Shugo Hime Artemina
11%
Tags
  • Mahou Shoujo Protagonist
  • Loli Protagonist
  • High Amounts of Rape
  • Ponytail Protagonist
  • Insemination by Non-Humanoids
Rating 6.3025 Users
Reizoku no Majo April ~Injoku no Mahou Choukyou~
Reizoku no Majo April ~Injoku no Mahou Choukyou~
10%
Tags
  • Fairy Heroine
  • No "Keep Voice on Click" Option
  • Built-in Flowchart
  • Witch Heroine
  • Heroine with Visible Panties
Rating 5.56495 Users
Mahou Shoujo Kanata TS
Mahou Shoujo Kanata TS
10%
Tags
  • Genderbent Sex
  • Gender Bending
  • Body Swapping
  • Heroine with Spats
  • Corruption of Characters
Rating 6.4642 Users
Kyousei AV Debut Kamiki Airi 1X-sai ~Jii Tousatsu kara Hajimatta, Chijoku to Haishin no Hibi~
Kyousei AV Debut Kamiki Airi 1X-sai ~Jii Tousatsu kara Hajimatta, Chijoku to Haishin no Hibi~
10%
Tags
  • Unavoidable Protagonist Rape
  • Student Club Member Protagonist
  • Rape with Blackmail
  • Public Use (Choukyou or Non-Consensual)
  • Mindbreak
Rating 6.7645 Users
Soukou Kijo Iris
Soukou Kijo Iris
10%
Tags
  • Completely Unavoidable Protagonist Rape
  • Brothel
  • Prostitute Protagonist
  • Extraterrestrial
  • Mecha Pilot Protagonist
Rating 6.11290 Users
Play! Play! Play! Shi
Play! Play! Play! Shi
9%
Tags
  • Dying Protagonist
  • Stockings
  • Single Hole Multiple Objects Insertion (obsolete)
  • More Than Seven Heroines
  • Cum on Food
Rating 6.4661 Users
Magical Teacher Sensei wa Majo?
Magical Teacher Sensei wa Majo?
9%
Tags
  • P.E. Teacher Heroine
  • Blood-related Aunt/Nephew Incest
  • Principal Heroine
  • Mage Protagonist
  • Shotacon Heroine
Rating 5.39249 Users
Hametoku ★ Orikou JK Pet Hazuki & Ayane ~Gakkou de Seishun!~
Hametoku ★ Orikou JK Pet Hazuki & Ayane ~Gakkou de Seishun!~
9%
Tags
  • Student Club President Protagonist
  • Big Breast Sizes Protagonist
  • Swimming Club
  • Third-person Narrative
  • Blowbang
Rating 6.5533 Users
Masou no Kuni no Alice: Alice in Immoral-Land
Masou no Kuni no Alice: Alice in Immoral-Land
9%
Tags
  • Wonderland
  • Nekomimi Hero
  • Symbiote / Parasite
  • Plant Sex
  • Transformation Sequence(s)
Rating 6.8354 Users
Anki Renjoku ~Owaranai Seiki no Tettsui~
Anki Renjoku ~Owaranai Seiki no Tettsui~
9%
Tags
  • Unavoidable Protagonist Rape
  • Lesbian Rape
  • Living Clothes Sex
  • Huge Insertion
  • Superhero(ine) Protagonist
Rating 5.7521 Users
Raikou no Taimashi Nanaho ~Injin Fukkatsu~
Raikou no Taimashi Nanaho ~Injin Fukkatsu~
9%
Tags
  • Cum Bath
  • Nipple Insertion
  • Gymnastic Heroine
  • Gaping
  • Dark Skinned Protagonist
Rating 6.4125 Users
ManguSta -Chijoku Fuuki Iinkai-
ManguSta -Chijoku Fuuki Iinkai-
9%
Tags
  • Discipline Committee Leader Protagonist
  • Pragmatic Protagonist
  • Student Council Member Heroine
  • Discipline Committee Member Heroine
  • Arrogant Protagonist
Rating 6.8722 Users
Daisaimin Rankou Gakuen
Daisaimin Rankou Gakuen
9%
Tags
  • Gokkun
  • Erotic Mind Control
  • Tall Heroine
  • Mind Control
  • Group Sex of Multiple Females and Males
Rating 6.3523 Users
Makai Tenshi Djibril -Episode 2-
Makai Tenshi Djibril -Episode 2-
9%
Tags
  • Action
  • Netorare Type C
  • Transformation Sequence(s)
  • Energy Transfer via Sex
  • Netorare
Rating 6.9636 Users
Brave Hunter Aoi
Brave Hunter Aoi
8%
Tags
  • Superheroine
  • Superhero(ine) Protagonist
  • Wet and Messy
  • Heroine with Leotard
  • Stuck in Meatwall
Rating 6.8824 Users
Zettai Anji Marionette ~Saimin Fukushuu Game~
Zettai Anji Marionette ~Saimin Fukushuu Game~
8%
Tags
  • Erotic Mind Control
  • Excessive Semen
  • Otaku Protagonist
  • Narrating Others' Thoughts
  • Completion Status Indicator
Rating 6.4245 Users
Taimanin Kurenai
Taimanin Kurenai
8%
Tags
  • Heroine with Catsuit
  • Sexual Slavery
  • Visible Cervix Penetration
  • Genital Piercing
  • Ryona
Rating 6.84129 Users
Uchuu Kaizoku Sara
Uchuu Kaizoku Sara
8%
Tags
  • Pirate Protagonist
  • Sword Combat
  • Mercenary Protagonist
  • Sword Wielding Heroine
  • Futanari on Futanari
Rating 6.49266 Users
Oyako Saiin Chiiku ~ Konna Ore ni Uzuite Modaero!
Oyako Saiin Chiiku ~ Konna Ore ni Uzuite Modaero!
8%
Tags
  • Hate Story
  • Oyakodon
  • Protagonist as the Only Male
  • Family
  • Oyakodon Ending
Rating 5.24544 Users
Hentai Seiheki Kyousei Saimin ~Yume no Naka Dake ja Manzoku Dekinai no~
Hentai Seiheki Kyousei Saimin ~Yume no Naka Dake ja Manzoku Dekinai no~
8%
Tags
  • Daydreams
  • Youkai
  • Dream
  • Villainous Protagonist
  • Imouto-type Heroine
Rating 6.3634 Users
Sentou Kanojo -Koi mo Ofuro mo Atsuatsu de-
Sentou Kanojo -Koi mo Ofuro mo Atsuatsu de-
8%
Tags
  • Cross-dressing
  • Trap Protagonist
  • Protagonist's Sister as a Support Character
  • Onsen
  • Late Sexual Content
Rating 6.0465 Users
Shoujo Settai
Shoujo Settai
8%
Tags
  • Childishly Violent Protagonist
  • Student Council President Protagonist
  • Scary Protagonist
  • Martial Artist Protagonist
  • Childishly Violent Heroine
Rating 5.27231 Users

Orion Heart ~Injoku no Suku Mizu Sailor Senshi~ 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 (64 total)

NameScoreImportanceWeight
Clitoris Growth3.002.698.08
Unavoidable Heroine Rape3.001.835.50
Mindbreak3.001.775.30
Rapist Protagonist3.001.755.24
Visible Cervix Penetration2.002.414.82
Villainous Protagonist2.671.794.78
Demon Protagonist2.002.354.71
Rape with Blackmail2.601.784.62
Erotic Electrostimulation2.002.224.43
Sexual Slavery2.671.634.35
Class President Heroine2.002.174.34
Mahou Shoujo Heroine2.251.894.24
Literary Adaptation2.002.094.17
Non-consensual Erotic Humiliation2.002.074.15
Linear Plot3.001.384.14
Futanari on Female2.002.074.14
Lesbian Rape2.002.034.06
Possession2.002.024.04
Insemination by Non-Humanoids2.002.024.03
Penis Growth2.001.943.88
Huge Insertion2.001.853.70
Monster Rape2.001.833.66
Heroine with Sexual Experience3.001.223.65
Sex with Insects1.502.393.59
Slime Monster Rape1.602.093.35
Demons1.751.903.32
Early Sexual Content2.331.232.86
Other Perspectives2.501.142.84
Internal Exhibition of Sex1.801.562.81
Modern Day Japan2.001.322.65
Succubi1.002.632.63
Sickly Protagonist1.002.612.61
Multiple Penetration2.001.272.55
BDSM1.501.652.48
Sex in Water1.751.412.47
Sex in Public Places2.251.092.45
Group Sex of One Female and Several Males2.251.082.42
Bukkake2.001.202.41
Monsters1.251.922.40
Revenge1.331.712.27
Few Choices1.671.342.23
Blowbang1.002.212.21
Heroine with Sport Bloomers1.002.092.09
Heroine with Swimsuits1.251.642.05
Student Heroine2.000.991.98
Group Sex of Multiple Females and Males1.331.491.98
Nukige3.000.651.95
Early Branching Plot1.001.741.74
High School Student Heroine2.000.851.70
Missionary Position1.750.941.65
Gang Rape1.001.491.49
Sex in Front of an Audience1.001.481.48
Erotic Spanking1.001.441.44
Heroine with Zettai Ryouiki1.001.401.40
Doggy Style1.670.801.34
Anal Penetration1.001.321.32
Student Protagonist1.001.261.26
Handjob0.801.501.20
Blowjob1.001.111.11
Male Protagonist2.250.300.68
Multiple Endings1.000.670.67
Modern Day0.331.570.52
ADV2.250.150.33
Boobjob0.201.320.26

Traits (53 total)

NameCharactersImportanceWeight
Mahou Shoujo Role22.222.44
Gokkun Engages in (Sexual)22.042.24
One Piece Swimsuit Clothes21.922.11
Group Sex Engages in (Sexual)21.501.65
Tie Pin Clothes12.341.62
Gloves Clothes21.411.55
Brooch Clothes12.221.54
Sex with Monsters Engages in (Sexual)12.171.50
Ankle Length Hair12.121.47
Court Shoes Clothes12.111.46
Sports Uniform Clothes12.091.45
Noble Role12.041.42
Yamato Nadeshiko Role12.001.38
Sex in Public Places Engages in (Sexual)21.261.38
Ribbon Tie Clothes21.251.37
Double Handjob Engages in (Sexual)11.891.31
Unusual Hair Ornaments Clothes11.871.30
Non-consensual Sex with Tentacles Engages in (Sexual)11.781.23
Necktie Clothes21.111.22
Sport Bloomers Clothes11.721.19
Naive Personality11.691.17
Miniskirt Clothes21.061.17
Boots Clothes11.681.16
Collar Clothes11.661.15
Wealthy Role11.651.15
Ribbon Hair Accessory Clothes11.651.15
Double Penetration (Group Sex) Subject of (Sexual)11.651.14
Clothing with Ribbons Clothes11.571.09
Energetic Personality11.521.05
Headband Clothes11.451.00
Earrings Clothes11.420.99
Tsurime Eyes11.380.96
Knee-high Socks Clothes11.380.96
High School Student Role20.850.93
Ahoge Hair11.320.91
Curtained Hair11.300.90
Parted in Middle Hair11.250.87
Classmate Role11.230.85
School Uniform Clothes20.750.83
Ribbon Hair Tie Clothes11.190.83
Tareme Eyes11.100.76
Ponytail Hair11.100.76
Parted to Side Hair11.050.73
Thigh-high Stockings Clothes11.040.72
Amber Eyes11.030.71
Green Eyes11.020.70
Spiky Bangs Hair11.000.69
Teen Body20.620.68
Shoulder-length Hair10.920.64
Slim Body20.580.63
Blond Hair10.890.62
Black Hair10.810.56
Pale Body20.370.41