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Summary

Older brother (nameable) has two younger twin sisters, Luna and Sol. Luna is a brocon who wants to have sex with her onii-chan while Sol is high spirited and enjoys teasing both her siblings. The twins both propose to onii-chan to become his lovers.

Gaku ☆ Ou -It
Gaku ☆ Ou -It's Heartful Days!!-
NAN%
Tags
  • Alien Protagonist
  • System Time Events
  • Foreigner Heroine
  • Protagonist's Girlfriend as a Heroine
  • Genius Heroine
Rating 6.7640 Users
Tsun na Kanojo Dere na Kanojo
Tsun na Kanojo Dere na Kanojo
NAN%
Tags
  • Multiple Credit Rolls
  • Siscon Support Character
  • Astronomy Club
  • Former All-girls School
  • Alien Heroine
Rating 6.6937 Users
Imouto ga Eroge Seiyuu Dattan Daga
Imouto ga Eroge Seiyuu Dattan Daga
NAN%
Tags
  • Seiyuu Heroine
  • Family Life Comedy
  • Forbidden Love
  • Only Loli Heroines
  • Only Blood-related Heroines
Rating 6.3526 Users
Vanitas no Hitsuji
Vanitas no Hitsuji
NAN%
Tags
  • Mute Heroine
  • Low Sexual Content
  • Nun Heroine
  • Past Setting in a Fictional World
  • ESP
Rating 6.5122 Users
Shokusai no Miyako
Shokusai no Miyako
NAN%
Tags
  • Societal Collapse
  • Desperation
  • Symbiote / Parasite
  • Imouto-type Heroine
  • Sex with Others
Rating 6.2826 Users
Flower Garden
Flower Garden
NAN%
Tags
  • All-girls School
  • Tsundere Protagonist
  • Girl x Girl Romance Only
  • Student Council President Heroine
  • Protagonist's Senpai as a Heroine
Rating 5.8620 Users
3jigen Shoujo o Hogo Shimashita
3jigen Shoujo o Hogo Shimashita
NAN%
Tags
  • Family Life Comedy
  • Otaku Protagonist
  • Nympho Heroine
  • Modern Day
  • Blood-related Brother/Sister Incest
Rating 6.6533 Users
Evenicle Gaiten
Evenicle Gaiten
NAN%
Tags
  • Genius Heroine
  • Classic Tsundere Heroine
  • Sexual Content
  • Male Protagonist
  • ADV
Rating 6.3740 Users
Suisenka
Suisenka
NAN%
Tags
  • Metafiction
  • 70's
  • Built-in Flowchart
  • No Saves
  • No Title Screen
Rating 7.2122 Users
Dainikai Imouto Senbatsu☆Sousenkyo ~366ninme no Imouto Icha Love Gojitsudan~
Dainikai Imouto Senbatsu☆Sousenkyo ~366ninme no Imouto Icha Love Gojitsudan~
NAN%
Tags
  • Protagonist's Half-sister as a Heroine
  • High Amount of Special Effects
  • Incest
  • Protagonist's Sister as a Heroine
  • Protagonist's Blood-related Sister as a Heroine
Rating 6.7230 Users
Imouto Senbatsu☆Sousenkyo ~365-nin no Imouto Icha Love Manifest~
Imouto Senbatsu☆Sousenkyo ~365-nin no Imouto Icha Love Manifest~
NAN%
Tags
  • Protagonist's Half-sister as a Heroine
  • Protagonist's Younger Sister as a Heroine
  • Only Protagonist's Sisters as Heroine(s)
  • High Amount of Special Effects
  • Highly Animated Sprites
Rating 6.5051 Users
Futari no Qualia
Futari no Qualia
NAN%
Tags
  • Vertically Oriented Text
  • Low Sexual Content
  • No Character Sprites
  • NVL
  • Brief Branches Only
Rating 6.3833 Users
Pure Marriage ~Akai Ito Monogatari - Sakura Hen~
Pure Marriage ~Akai Ito Monogatari - Sakura Hen~
NAN%
Tags
  • Protagonist's Wife as a Heroine
  • Childhood Friend Support Character
  • Wedding
  • Protagonist's Full Sister as a Heroine
  • Blood-related Brother/Sister Incest
Rating 6.5222 Users
Hitori no Qualia
Hitori no Qualia
NAN%
Tags
  • Hikikomori Protagonist
  • Romance Between Protagonists
  • Lesbian Lolicon
  • Softcore
  • Lesbian Sex Only
Rating 6.4348 Users
shin-neko ~Saikai Shita Imouto to no Arata na Kankei~
shin-neko ~Saikai Shita Imouto to no Arata na Kankei~
NAN%
Tags
  • Straight Lolicon
  • Only Blood-related Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Only Younger Heroines
  • Only Loli Heroines
Rating 6.4730 Users
Koiharu Adolescence
Koiharu Adolescence
NAN%
Tags
  • Ghost Heroine
  • Brocon Heroine
  • Protagonist's Senpai as a Heroine
  • Comedy
  • High Sexual Content
Rating 7.1256 Users
Extravaganza ~Mushigurui Hen~
Extravaganza ~Mushigurui Hen~
NAN%
Tags
  • Insects
  • Hero with Children
  • Madness
  • Coprophagia
  • Completely Avoidable Heroine Rape
Rating 7.7941 Users
Mushitsukai
Mushitsukai
NAN%
Tags
  • Sex with Insects
  • Scat Filter
  • Combat with Exotic Weapons
  • Consensual Sex Involving Slime Monsters
  • Symbiote / Parasite
Rating 6.6935 Users
Suki Suki Daisuki!
Suki Suki Daisuki!
NAN%
Tags
  • Heroine with Latex
  • Protagonist with Psychological Problems
  • Kidnapping
  • Madness
  • Breast Expansion
Rating 6.6723 Users
Ama Ama ★ Sharing
Ama Ama ★ Sharing
NAN%
Tags
  • Rimming Handjob
  • Chubby Protagonist
  • Non-twin Heroine Sisters
  • Twin Handjob
  • Soapy Massage
Rating 6.9726 Users
Shirogane x Spirits!
Shirogane x Spirits!
NAN%
Tags
  • Support Character with Ahoge
  • Student Council Member Protagonist
  • Tournament
  • Tsukkomi Protagonist
  • Personal Armed Combat
Rating 7.31115 Users
Roshutsu de Asobou
Roshutsu de Asobou
NAN%
Tags
  • Elementary School Student Heroine
  • Sexual Fantasizing
  • Unlock All Scenes Option
  • Elementary School Student Protagonist
  • Exhibitionism
Rating 5.6131 Users
Anekano ~Onee-chan to Ecchi de Amai Himitsu no Kankei~
Anekano ~Onee-chan to Ecchi de Amai Himitsu no Kankei~
NAN%
Tags
  • Straight Shotacon
  • Siscon Protagonist
  • Homemaker Protagonist
  • Sister/Sister Incest
  • Shimaidon
Rating 6.7323 Users
Nijuuei
Nijuuei
NAN%
Tags
  • Japanese Mythology
  • Samurai Protagonist
  • Quick Time Events
  • Confinement
  • Twin Sisters as Heroines
Rating 7.6046 Users
Color of White
Color of White
53%
Tags
  • Sister/Sister Romance
  • American Heroine
  • Sister/Sister Incest
  • Twincest
  • Lesbian Sex Only
Rating 6.4644 Users
LOVEPOTION SIXTYNINE
LOVEPOTION SIXTYNINE
45%
Tags
  • Boke Heroine
  • Protagonist's Twin as a Heroine
  • Comedic Love Triangle
  • Title Parody
  • Twincest
Rating 6.6675 Users
Hitori no Qualia
Hitori no Qualia
34%
Tags
  • Hikikomori Protagonist
  • Romance Between Protagonists
  • Lesbian Lolicon
  • Softcore
  • Lesbian Sex Only
Rating 6.4348 Users
Pure Marriage ~Akai Ito Monogatari - Sakura Hen~
Pure Marriage ~Akai Ito Monogatari - Sakura Hen~
23%
Tags
  • Protagonist's Wife as a Heroine
  • Childhood Friend Support Character
  • Wedding
  • Protagonist's Full Sister as a Heroine
  • Blood-related Brother/Sister Incest
Rating 6.5222 Users
Futari no Qualia
Futari no Qualia
22%
Tags
  • Vertically Oriented Text
  • Low Sexual Content
  • No Character Sprites
  • NVL
  • Brief Branches Only
Rating 6.3833 Users
Dainikai Imouto Senbatsu☆Sousenkyo ~366ninme no Imouto Icha Love Gojitsudan~
Dainikai Imouto Senbatsu☆Sousenkyo ~366ninme no Imouto Icha Love Gojitsudan~
21%
Tags
  • Protagonist's Half-sister as a Heroine
  • High Amount of Special Effects
  • Incest
  • Protagonist's Sister as a Heroine
  • Protagonist's Blood-related Sister as a Heroine
Rating 6.7230 Users
Imouto Senbatsu☆Sousenkyo ~365-nin no Imouto Icha Love Manifest~
Imouto Senbatsu☆Sousenkyo ~365-nin no Imouto Icha Love Manifest~
21%
Tags
  • Protagonist's Half-sister as a Heroine
  • Protagonist's Younger Sister as a Heroine
  • Only Protagonist's Sisters as Heroine(s)
  • High Amount of Special Effects
  • Highly Animated Sprites
Rating 6.5051 Users
Evenicle Gaiten
Evenicle Gaiten
20%
Tags
  • Genius Heroine
  • Classic Tsundere Heroine
  • Sexual Content
  • Male Protagonist
  • ADV
Rating 6.3740 Users
Suisenka
Suisenka
19%
Tags
  • Metafiction
  • 70's
  • Built-in Flowchart
  • No Saves
  • No Title Screen
Rating 7.2122 Users
Koiharu Adolescence
Koiharu Adolescence
18%
Tags
  • Ghost Heroine
  • Brocon Heroine
  • Protagonist's Senpai as a Heroine
  • Comedy
  • High Sexual Content
Rating 7.1256 Users
Mushitsukai
Mushitsukai
18%
Tags
  • Sex with Insects
  • Scat Filter
  • Combat with Exotic Weapons
  • Consensual Sex Involving Slime Monsters
  • Symbiote / Parasite
Rating 6.6935 Users
Ama Ama ★ Sharing
Ama Ama ★ Sharing
18%
Tags
  • Rimming Handjob
  • Chubby Protagonist
  • Non-twin Heroine Sisters
  • Twin Handjob
  • Soapy Massage
Rating 6.9726 Users
Roshutsu de Asobou
Roshutsu de Asobou
18%
Tags
  • Elementary School Student Heroine
  • Sexual Fantasizing
  • Unlock All Scenes Option
  • Elementary School Student Protagonist
  • Exhibitionism
Rating 5.6131 Users
Nijuuei
Nijuuei
18%
Tags
  • Japanese Mythology
  • Samurai Protagonist
  • Quick Time Events
  • Confinement
  • Twin Sisters as Heroines
Rating 7.6046 Users
Semerare ~Imouto de Kanjiru nante, Onii-chan wa Hentai Nanda ne~
Semerare ~Imouto de Kanjiru nante, Onii-chan wa Hentai Nanda ne~
17%
Tags
  • Submissive Protagonist
  • Blood-related Brother/Sister Incest
  • Sadist Heroine
  • Student-Teacher Romance
  • Female Domination
Rating 5.8134 Users
Hoshi Furu Yoru no Farnese
Hoshi Furu Yoru no Farnese
17%
Tags
  • Witch Heroine
  • Lawyer Protagonist
  • Murder Mystery
  • Sex at Work
  • Armpit Licking
Rating 7.2833 Users
Second Novel ~Kanojo no Natsu, 15-fun no Kioku~
Second Novel ~Kanojo no Natsu, 15-fun no Kioku~
16%
Tags
  • Disabled Heroine
  • Metafiction
  • Suicide
  • Amnesia
  • Elementary School Student Heroine
Rating 7.6131 Users
Usotsuki Ouji to Nayameru Ohime-sama -Princess Syndrome-
Usotsuki Ouji to Nayameru Ohime-sama -Princess Syndrome-
16%
Tags
  • Fictional Island Near Futuristic Japan
  • Heroine with Superpowered Side
  • Tall Heroine
  • Homemaker Protagonist
  • Naizuri
Rating 7.0744 Users
Kokorono
Kokorono
16%
Tags
  • Haraguro Heroine
  • Obsession
  • Hetare Protagonist
  • Dramatic Love Triangle
  • Foolish Protagonist
Rating 6.2823 Users
Low na Imouto ni Succubus ga Toritsuita node Tanetsuke Yoyuu deshita.
Low na Imouto ni Succubus ga Toritsuita node Tanetsuke Yoyuu deshita.
16%
Tags
  • Possession
  • Succubus Heroine
  • Unlockable Sexual Content
  • Protagonist's Younger Sister as a Heroine
  • Fake Choices
Rating 6.5623 Users
G.I.B. Girls in Black
G.I.B. Girls in Black
16%
Tags
  • Combat with Laser and Beam Firearms
  • Title Parody
  • Panic Button
  • Tsukkomi Protagonist
  • Homemaker Protagonist
Rating 7.1641 Users
Saki Portable
Saki Portable
16%
Tags
  • Mahjong as Story Element
  • Tournament
  • Mahjong as Gameplay Element
  • Competition
  • Character Profiles
Rating 6.6721 Users
Clover Point
Clover Point
15%
Tags
  • Drama Club
  • Autumn
  • Heroine with Intake Hairstyle
  • Few Choices
  • Orphan Heroine
Rating 7.2745 Users
Imouto Style
Imouto Style
15%
Tags
  • Sprite Filter
  • Protagonist's Twin as a Heroine
  • Harem Ending with Theme
  • Unnamed Protagonist
  • Twincest
Rating 6.8934 Users

S.I.S.T.A.R.S:KISS OF TRINITY 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
Twin Sisters as Heroines3.001.825.47
Sister/Sister Incest2.002.384.76
Non-penetrative Sex2.002.354.71
Modern Day Tokyo2.002.294.58
Incest Romance2.002.254.50
Blood-related Brother/Sister Incest3.001.484.45
Blood-related Sister/Sister Incest2.002.134.26
Siscon Protagonist2.002.054.10
Tribadism2.002.054.09
Female Protagonist for a Short Time2.002.034.06
Brocon Heroine2.501.614.01
Slice of Life Comedy2.001.873.74
Bokukko Heroine2.001.803.61
Twin Tail Heroine3.001.173.52
Threesome Ending2.001.743.48
Breaking the Fourth Wall2.001.743.48
Under the Same Roof2.331.272.96
Photographic Backgrounds2.001.392.78
Kinetic Novel2.501.072.67
Brother/Sister Incest1.202.042.45
Bukkake2.001.202.40
Only Virgin Heroines2.001.082.16
Nameable Protagonist2.330.912.12
Naked Sprites2.001.052.10
Lesbian Sex1.671.151.92
Missionary Position2.000.941.88
Low Sexual Content1.001.641.64
Defloration2.000.761.52
Sexual Content1.200.630.76
Male Protagonist2.000.300.60
ADV2.500.140.36
1.500.000.00

Traits (40 total)

NameCharactersImportanceWeight
Stockings Clothes22.422.66
Tribadism Engages in (Sexual)22.112.32
Bisexual Role21.942.13
Incest Engages in (Sexual)31.472.03
Clothing with Ribbons Clothes21.581.73
Full Sister Role21.561.72
Group Sex Engages in (Sexual)21.511.66
Sister Complex Personality12.381.65
Lesbian Sex Engages in (Sexual)21.381.52
Brother Complex Personality12.061.43
Dress Clothes21.251.38
Naked Clothes11.951.35
Airhead Personality11.921.33
String Ribbon Tie Clothes11.821.26
Twin Tails Hair21.131.24
Boku Personality11.781.23
Missionary Engages in (Sexual)11.741.21
Older Brother Role11.731.20
Cowgirl Engages in (Sexual)11.711.19
Virgin Sex Engages in (Sexual)30.851.18
Spiky Bangs Hair21.001.10
Straight Hair20.941.04
Teasing Engages in11.441.00
Masturbation Engages in (Sexual)11.390.97
Grey Hair11.380.96
Bukkake Subject of (Sexual)11.350.93
Red Eyes11.200.83
Ribbon Hair Tie Clothes11.190.83
Long Hair20.750.82
Group Sex of One Male and Several Females Engages in (Sexual)11.170.81
Missionary Subject of (Sexual)11.120.77
Necktie Clothes11.120.77
Tareme Eyes11.110.77
Teen Body20.620.68
Sidehair Hair10.980.68
Cowgirl Subject of (Sexual)10.950.66
Slim Body20.580.63
Blond Hair10.890.62
Blue Eyes10.800.56
Pale Body20.370.40