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Summary

Naoto Matsumoto is a young man who suffers from a peculiar memory loss: he does not remember his life before he was fourteen. Apparently both his parents died, and he was taken in by another family. On one rainy day, during a trip through the countryside, Naoto's car reaches a dead end on the road, and he and his stepsister are invited by a maid to spend the night in a large secluded mansion. Naoto witnesses increasingly strange and violent events and begins to recollect his lost memories. [From Mobygames]

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Zatsuon Ryouiki 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 (24 total)

NameScoreImportanceWeight
Censored Text2.501.934.83
Western-style Manor2.501.814.51
Utsuge2.001.923.83
Ending List2.001.803.60
Completely Avoidable Rape1.502.353.53
Bad Endings with Story2.501.403.51
High Amount of Bad Endings2.001.733.47
Amnesia2.001.723.44
Donkan Protagonist2.001.693.38
More Than Seven Endings2.501.333.32
Maid Heroine2.001.533.07
Perverted Heroine2.001.402.80
Betrayal1.501.832.74
Sex Involving Drugs1.501.822.73
Object Insertion1.501.692.53
BDSM1.501.652.48
Heroine with Sexual Experience2.001.222.43
Bloody Scenes1.001.561.56
Defloration2.000.761.52
Attempted Suicide0.502.251.12
Gore0.501.920.96
Male Protagonist2.000.300.61
ADV2.000.150.29
Sexual Content0.330.630.21

Traits (90 total)

NameCharactersImportanceWeight
Nipple Teasing Subject of (Sexual)71.573.27
Metal Bondage Subject of (Sexual)22.692.95
French Kiss Engages in (Sexual)61.492.89
Jealous Personality31.882.60
Sensitive Personality22.332.56
Nipple Sucking Subject of (Sexual)51.382.48
Female Ejaculation Engages in (Sexual)51.372.45
Animal Abuse Engages in13.452.39
Non-blood-related Incest Engages in (Sexual)22.162.37
Illness Subject of22.132.34
Not a Virgin Role41.422.29
Wet and Messy Engages in (Sexual)13.232.24
Lesbian Sex Engages in (Sexual)41.382.22
Vaginal Object Insertion Subject of (Sexual)22.012.21
Tominagi Subject of (Sexual)41.362.18
Vaginal Fingering Subject of (Sexual)61.082.10
Timid Personality21.862.05
Twin Sister Role21.862.04
Pet Collar Clothes12.731.89
Seduction Subject of12.671.85
Rope Bondage Subject of (Sexual)21.671.84
Head of Household Role12.631.82
Pubic Hair Shaving Subject of (Sexual)12.601.80
Sadist Role12.581.79
Vaginal Fingering Engages in (Sexual)21.621.78
Rope Bondage Engages in (Sexual)12.541.76
Wooden Horse Subject of (Sexual)12.511.74
Clinical Depression Subject of12.501.73
Bondage Sex Subject of (Sexual)21.571.73
Non-blood-related Son Role12.491.72
Older Sister Role21.561.71
Donkan Personality12.451.70
Weakness Subject of12.391.66
Non-blood-related Brother Role12.371.65
Writer Role12.371.64
Haraguro Personality12.371.64
Cunnilingus Subject of (Sexual)31.161.61
Sexual Fantasy Engages in (Sexual)12.321.61
Seventh Posture Subject of (Sexual)21.461.60
Younger Sister Role21.441.59
Bullying Engages in12.251.56
Cooking Engages in21.421.56
Food Play Engages in (Sexual)12.231.54
Seventh Posture Engages in (Sexual)12.191.52
Non-blood-related Sister Role12.171.50
Torn Clothing Clothes12.161.50
Mouth Gag Subject of (Sexual)12.141.48
Tominagi Engages in (Sexual)12.121.47
Manipulative Personality12.071.44
Bullying Subject of12.061.43
Nipple Teasing Engages in (Sexual)12.021.40
Emotional Personality12.021.40
Enema Subject of (Sexual)12.011.40
Secretive Personality12.001.39
Sixty-nine Engages in (Sexual)21.261.38
Blowjob Engages in (Sexual)50.761.36
Selfish Personality11.961.36
Scar Body11.951.35
Ojousama Role11.951.35
Amnesia Subject of11.951.35
Piledriver Subject of (Sexual)11.941.35
Group Sex of One Male and Several Females Engages in (Sexual)21.171.29
Maid Role11.841.28
Deepthroat Engages in (Sexual)11.801.25
Missionary Subject of (Sexual)21.121.23
Missionary Engages in (Sexual)11.741.21
Cowgirl Engages in (Sexual)11.721.19
Orphan Role11.701.18
Nipple Sucking Engages in (Sexual)11.701.18
Virgin Sex Engages in (Sexual)30.851.18
Arrogant Personality11.701.18
Vaginal Masturbation Engages in (Sexual)11.701.18
Stubborn Personality11.681.16
Pervert Personality11.631.13
Full Sister Role11.571.09
Cunnilingus Engages in (Sexual)11.551.08
Maid's Dress Clothes11.511.05
Sex in Front of an Audience Engages in (Sexual)11.501.04
Masturbation Engages in (Sexual)11.390.96
Grey Hair11.380.96
Bukkake Subject of (Sexual)11.350.93
Friendly Personality11.220.85
Long Hair20.750.83
Standing Sex Subject of (Sexual)11.180.82
Butterfly Subject of (Sexual)11.170.81
Kind Personality11.030.71
Cowgirl Subject of (Sexual)10.950.66
Doggy Style Subject of (Sexual)10.930.64
Black Hair10.810.56
Short Hair10.610.42