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Summary

Father remarries, and main character gets a cute little sister. On a summer vacation day older brother gets lost to temptation and attacks his new sister. [From vndbreview]

Flatcheez
Flatcheez
NAN%
Tags
  • Elementary School Student Protagonist
  • Elementary School
  • Side Character Having Sex with Others
  • Child Support Character
  • Transfer Student Protagonist
Rating 6.43160 Users
Juukan Roku
Juukan Roku
NAN%
Tags
  • Prolapse
  • Bestiality
  • Urethral Intercourse
  • Sex Involving Smegma
  • Flat Tints Only
Rating 6.1922 Users
Omae wa Juujin Niku Benki ~Tanezuke Mugen Loop~
Omae wa Juujin Niku Benki ~Tanezuke Mugen Loop~
NAN%
Tags
  • Completely Unavoidable Heroine Rape
  • Grotesque Body Modification
  • Kemonomimi Heroine
  • Discrimination
  • Rapist Protagonist
Rating 5.8431 Users
Ore o Mikudasu Celeb Tsuma no Do M Ganbou Shinkankaku Animation Novel Tsuma Kan 2
Ore o Mikudasu Celeb Tsuma no Do M Ganbou Shinkankaku Animation Novel Tsuma Kan 2
NAN%
Tags
  • Playboy Protagonist
  • Perverted Protagonist
  • Netori
  • Love Hotel
  • Blackmail
Rating 6.5493 Users
Eien
Eien
NAN%
Tags
  • Checkpoints
  • Blind Heroine
  • High Amount of Bad Endings
  • Protagonist as the Only Male
  • No Quick Save/Load
Rating 6.4822 Users
Otosarezuma Honami ~Aishiteiru no wa Otto dake no Hazu na no ni...~
Otosarezuma Honami ~Aishiteiru no wa Otto dake no Hazu na no ni...~
NAN%
Tags
  • Only Adult Heroines
  • Salaryman Protagonist
  • Netorare Type A
  • Protagonist's Wife as a Heroine
  • Piss Drinking
Rating 6.2269 Users
Erogaki ni Hamaru Kanojo
Erogaki ni Hamaru Kanojo
NAN%
Tags
  • Defloration by Others
  • Only Bad Endings
  • Straight Shotacon
  • Netorare Type A
  • Shotacon
Rating 6.1436 Users
ACE OF SPADES
ACE OF SPADES
NAN%
Tags
  • Poker
  • Sexual Devices
  • BDSM
  • Title Parody
  • Third-person Narrative
Rating 4.6821 Users
Loli Kyonyuu no Sato Nite
Loli Kyonyuu no Sato Nite
NAN%
Tags
  • Oppai Loli Heroine
  • Countryside
  • Heroine with Kimono
  • RPG
  • Twin Boobjob
Rating 6.8126 Users
My Mother Kyoko - NTR Fallen
My Mother Kyoko - NTR Fallen
NAN%
Tags
  • Completely Unavoidable Netorare
  • Playboy Hero
  • Sexual Corruption
  • Nympho Protagonist
  • Co-worker Hero
Rating 6.1847 Users
Yozora Rhapsody
Yozora Rhapsody
NAN%
Tags
  • Daughter Support Character
  • Protagonist's Wife as a Heroine
  • Family
  • Beach
  • Island
Rating 4.8354 Users
Happy Campers
Happy Campers
NAN%
Tags
  • Summer Camp
  • Forest
  • Protagonist Gender Choice
  • American Heroine
  • No Common Sense Heroine
Rating 4.5056 Users
Akane no Chiisana Hanabira
Akane no Chiisana Hanabira
NAN%
Tags
  • In-law Incest
  • Protagonist's Sister-in-Law as a Heroine
  • No Voice Replay
  • Sex Involving Children
  • Save Memo Function
Rating 6.2736 Users
sousyun
sousyun
NAN%
Tags
  • Blood-related Uncle/Niece Incest
  • Protagonist's Niece as a Heroine
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Sex Involving Children
  • Loli Heroine
Rating 6.1327 Users
My_Sister
My_Sister
NAN%
Tags
  • Only Protagonist's Sisters as Heroine(s)
  • Pre-rendered 3D Graphics
  • Realistic-looking 3D
  • Sex with Protagonist Only
Rating 5.8020 Users
Onii-chan Asobo
Onii-chan Asobo
NAN%
Tags
  • Design Story
  • Brother/Sister Incest
  • Protagonist's Younger Sister as a Heroine
  • Brother/Sister Romance
  • Lots of Event CGs
Rating 5.3593 Users
Venus Blood -AfterDays- Episode:5 Onsen
Venus Blood -AfterDays- Episode:5 Onsen'yado no Shugo Megami
NAN%
Tags
  • Straight Lolicon
  • Nursing Handjob
  • Onsen
  • Goddess Heroine
  • Insemination by Non-Humanoids
Rating 6.5830 Users
Mama wa Inran Niku Dorei
Mama wa Inran Niku Dorei
NAN%
Tags
  • Sexual Child Abuse
  • Straight Lolicon
  • Only Loli Heroines
  • Interactive Touching Game
  • Peace Sign Ahegao
Rating 6.9029 Users
Shoujo Mahou Gaku Little Witch Romanesque Bangai Hen "Sayonara, Mauresumo"
Shoujo Mahou Gaku Little Witch Romanesque Bangai Hen "Sayonara, Mauresumo"
NAN%
Tags
  • Ghost
  • Floating Textbox
  • Past Setting in a Fictional World
  • Comedy
  • No Romance Plot
Rating 6.4321 Users
Cobra Mission: Panic in Cobra City
Cobra Mission: Panic in Cobra City
NAN%
Tags
  • Softcore
  • Nameable Character(s)
  • Detective Work
  • RPG
  • Co-worker Heroine
Rating 5.7656 Users
Aniyome wa Ore no Mono o Hanasanai ~Miboujin Wakaokami no Yuuwaku~
Aniyome wa Ore no Mono o Hanasanai ~Miboujin Wakaokami no Yuuwaku~
NAN%
Tags
  • Widow Heroine
  • Only Non-Virgin Heroines
  • Only a Single Heroine
  • Nukige
  • Male Protagonist
Rating 6.1332 Users
Inkyo Gunshi no Kyuukoku Strategy
Inkyo Gunshi no Kyuukoku Strategy
NAN%
Tags
  • Real Time with Pause
  • Tactician Protagonist
  • High Fantasy
  • Unlockable Sexual Content
  • Playtime Counter
Rating 5.8236 Users
Dahlia
Dahlia
NAN%
Tags
  • France
  • 19th Century
  • Europe
  • Lesbian Protagonist
  • Past Earth
Rating 5.2956 Users
Venus Blood -AfterDays- Episode:6 Koukyuu no Zettai Kami
Venus Blood -AfterDays- Episode:6 Koukyuu no Zettai Kami
NAN%
Tags
  • Straight Lolicon
  • Heroine with Heterochromia
  • Goddess Heroine
  • Consensual Sex Involving Tentacles
  • Loli Heroine
Rating 6.5922 Users
Kawaime M Maid-san no Oshigoto SM Lesson ~Goichizoku ni Tsutawaru Higi o, Sendai-sama ni Kawatte Godenju Itashimasu~
Kawaime M Maid-san no Oshigoto SM Lesson ~Goichizoku ni Tsutawaru Higi o, Sendai-sama ni Kawatte Godenju Itashimasu~
35%
Tags
  • Vacuum Bed
  • BDSM
  • Sexual Slavery (Consensual)
  • Maid Heroine
  • Whipping
Rating 5.4841 Users
Inraku Counseling ~Otto no Me no Mae de, Tsuma wa Honshou ni Ochiteyuku~
Inraku Counseling ~Otto no Me no Mae de, Tsuma wa Honshou ni Ochiteyuku~
27%
Tags
  • Netori
  • Medical Doctor Protagonist
  • Remote-controlled Vibrator
  • Urination Fetish
  • Piledriver
Rating 5.3844 Users
sousyun
sousyun
25%
Tags
  • Blood-related Uncle/Niece Incest
  • Protagonist's Niece as a Heroine
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Sex Involving Children
  • Loli Heroine
Rating 6.1327 Users
Akane no Chiisana Hanabira
Akane no Chiisana Hanabira
22%
Tags
  • In-law Incest
  • Protagonist's Sister-in-Law as a Heroine
  • No Voice Replay
  • Sex Involving Children
  • Save Memo Function
Rating 6.2736 Users
Happy Campers
Happy Campers
22%
Tags
  • Summer Camp
  • Forest
  • Protagonist Gender Choice
  • American Heroine
  • No Common Sense Heroine
Rating 4.5056 Users
My Mother Kyoko - NTR Fallen
My Mother Kyoko - NTR Fallen
21%
Tags
  • Completely Unavoidable Netorare
  • Playboy Hero
  • Sexual Corruption
  • Nympho Protagonist
  • Co-worker Hero
Rating 6.1847 Users
Yozora Rhapsody
Yozora Rhapsody
20%
Tags
  • Daughter Support Character
  • Protagonist's Wife as a Heroine
  • Family
  • Beach
  • Island
Rating 4.8354 Users
ACE OF SPADES
ACE OF SPADES
19%
Tags
  • Poker
  • Sexual Devices
  • BDSM
  • Title Parody
  • Third-person Narrative
Rating 4.6821 Users
Loli Kyonyuu no Sato Nite
Loli Kyonyuu no Sato Nite
18%
Tags
  • Oppai Loli Heroine
  • Countryside
  • Heroine with Kimono
  • RPG
  • Twin Boobjob
Rating 6.8126 Users
Onii-chan Asobo
Onii-chan Asobo
18%
Tags
  • Design Story
  • Brother/Sister Incest
  • Protagonist's Younger Sister as a Heroine
  • Brother/Sister Romance
  • Lots of Event CGs
Rating 5.3593 Users
Mama wa Inran Niku Dorei
Mama wa Inran Niku Dorei
18%
Tags
  • Sexual Child Abuse
  • Straight Lolicon
  • Only Loli Heroines
  • Interactive Touching Game
  • Peace Sign Ahegao
Rating 6.9029 Users
Cobra Mission: Panic in Cobra City
Cobra Mission: Panic in Cobra City
18%
Tags
  • Softcore
  • Nameable Character(s)
  • Detective Work
  • RPG
  • Co-worker Heroine
Rating 5.7656 Users
Inkyo Gunshi no Kyuukoku Strategy
Inkyo Gunshi no Kyuukoku Strategy
18%
Tags
  • Real Time with Pause
  • Tactician Protagonist
  • High Fantasy
  • Unlockable Sexual Content
  • Playtime Counter
Rating 5.8236 Users
Venus Blood -AfterDays- Episode:6 Koukyuu no Zettai Kami
Venus Blood -AfterDays- Episode:6 Koukyuu no Zettai Kami
17%
Tags
  • Straight Lolicon
  • Heroine with Heterochromia
  • Goddess Heroine
  • Consensual Sex Involving Tentacles
  • Loli Heroine
Rating 6.5922 Users
Kyouiku ni Urusai Gibo to Yuutousei na Gishi ni Tanezuke mo Benkyou no Hitotsu to Saimin o Kaketa Kekka
Kyouiku ni Urusai Gibo to Yuutousei na Gishi ni Tanezuke mo Benkyou no Hitotsu to Saimin o Kaketa Kekka
17%
Tags
  • Protagonist's Older Sister as a Heroine
  • Non-blood-related Mother/Son Incest
  • Masochist Heroine
  • Internal Pissing
  • Pig Cosplay
Rating 6.4173 Users
Namaiki Imouto o Choukyou Shitatta
Namaiki Imouto o Choukyou Shitatta
16%
Tags
  • Unavoidable Heroine Rape by the Protagonist
  • Perverted Friend
  • Domestic Violence
  • In-Game Tutorial
  • Ordered Choices
Rating 5.9325 Users
Yuka
Yuka
16%
Tags
  • Pregnancy Ending
  • Uncle/Niece Incest
  • Protagonist's Niece as a Heroine
  • Time Jump
  • No "Keep Voice on Click" Option
Rating 5.9941 Users
Daisuki na Sensei ni H na Onedari Shichau Omase na Boku no / Watashi no Puni Puni
Daisuki na Sensei ni H na Onedari Shichau Omase na Boku no / Watashi no Puni Puni
16%
Tags
  • Pedophile Protagonist
  • Trap Heroine
  • Domicile
  • Quiz Game
  • Sickly Heroine
Rating 6.2222 Users
Z.O.E. 2173 Testament
Z.O.E. 2173 Testament
16%
Tags
  • Mars
  • SRPG
  • Future Earth
  • War
  • No Sexual Content
Rating 6.9142 Users
Kekkon Shitai Otoshigoro
Kekkon Shitai Otoshigoro
16%
Tags
  • Interactive Touching Game
  • Protagonist's Niece as a Heroine
  • Straight Lolicon
  • Sex Involving Children
  • Floating Textbox
Rating 6.4935 Users
Rina no Chiisana Oka
Rina no Chiisana Oka
15%
Tags
  • Lolicon Protagonist
  • No "Keep Voice on Click" Option
  • Interactive Touching Game
  • Loli Support Character
  • Elementary School Student Heroine
Rating 5.9557 Users
Make Love Not Waagh!
Make Love Not Waagh!
15%
Tags
  • Orc Heroine
  • Consensual Erotic Humiliation
  • Muscular Heroine
  • Interracial/interspecies Romance
  • Interracial Sex
Rating 6.3336 Users
Inmai Baby
Inmai Baby
15%
Tags
  • Playtime Counter
  • Completely Avoidable Netorare
  • Passage of Time
  • Flat Tints Only
  • Only Protagonist's Sisters as Heroine(s)
Rating 6.6620 Users
Princess Harem
Princess Harem
15%
Tags
  • Sexual Scenes with Gameplay
  • Interactive Touching Game
  • Prince Protagonist
  • Highly Animated Sprites
  • Princess Heroine
Rating 5.9428 Users

Naisho no Natsuyasumi 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 (8 total)

NameScoreImportanceWeight
Only Loli Heroines3.001.775.31
Lolicon3.001.735.19
Straight Lolicon3.001.504.51
Sex Involving Children2.001.953.90
Loli Heroine3.001.193.56
Only Virgin Heroines2.001.082.17
Defloration2.000.761.52
Male Protagonist2.000.300.61

Traits (66 total)

NameCharactersImportanceWeight
Non-blood-related Incest Engages in (Sexual)22.162.37
Sleep Sex Engages in (Sexual)12.771.92
Laptop Items12.711.88
Sleep Sex Subject of (Sexual)12.491.73
Sex with Children Engages in (Sexual)12.491.73
Non-blood-related Son Role12.491.72
Photography Engages in12.411.67
Non-blood-related Mother Role12.371.65
Non-blood-related Brother Role12.371.65
Handbag Items12.291.59
Intercrural Sex Subject of (Sexual)12.281.58
Short Bangs Hair12.251.56
Rubber Band With Beads Clothes12.221.54
Spoons Engages in (Sexual)12.221.54
Blackmail Engages in12.221.54
Non-blood-related Sister Role12.171.50
Kid Body21.371.50
Sundress Clothes12.141.48
Shimapan Clothes12.131.48
Blackmail Subject of12.121.47
Violet Eyes31.041.45
T-shirt Clothes21.311.44
Butterfly Engages in (Sexual)12.021.40
Friend Role21.201.32
Butterfly Subject of (Sexual)21.171.29
Intercrural Sex Engages in (Sexual)11.851.28
Mobile Phone Items11.751.21
Missionary Engages in (Sexual)11.741.21
Panties Clothes11.731.20
Older Brother Role11.731.20
Spiky Hair11.691.17
Shorts Clothes11.681.16
Spoons Subject of (Sexual)11.671.16
No Bangs Hair11.661.15
Vaginal Fingering Engages in (Sexual)11.621.12
Spiky Bangs Hair21.001.10
Cunnilingus Engages in (Sexual)11.551.08
Sidehair Hair20.981.07
Wife Role11.541.06
Blowjob Subject of (Sexual)11.521.06
Student Role11.491.03
Mother Role11.461.01
Daughter Role11.461.01
Younger Sister Role11.441.00
Tank Top Clothes11.420.98
Blond Hair20.890.97
Hairpin Clothes11.400.97
Masturbation Engages in (Sexual)11.390.96
Not Sexually Involved Engages in (Sexual)11.360.94
Virgin Sex Engages in (Sexual)20.850.93
Slim Body40.580.93
Curtained Hair11.300.90
Young-adult Body20.760.84
Red Eyes11.200.83
Violet Hair11.190.83
Cunnilingus Subject of (Sexual)11.160.81
Twin Tails Hair11.130.78
Missionary Subject of (Sexual)11.120.77
Vaginal Fingering Subject of (Sexual)11.080.75
Miniskirt Clothes11.060.74
Straight Hair10.950.66
Shoulder-length Hair10.920.64
Pale Body40.370.60
Blowjob Engages in (Sexual)10.760.53
Brown Hair10.680.47
Short Hair10.610.42