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Summary

One night, our main character sneaks into the room of his sleeping little sister Yui for a bit of fun...once you stray from the path, there's no going back. This is an incestual story that unfolds in a love nest. Their love story is one which cannot be forgiven by anyone. [From DLsite English]

Mai Sex 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.

Mai Sex has not yet been read by enough users to calculate it's similar novels... sorry!
A novel needs atleast 20 votes before it's similarity is calculated.

Mai Sex 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.

Traits (33 total)

NameCharactersImportanceWeight
Sleep Sex Engages in (Sexual)12.761.91
Sleep Sex Subject of (Sexual)12.491.73
Sister Complex Personality12.381.65
Incest Engages in (Sexual)21.471.61
Middle School Student Role12.291.59
Third Person Personality12.111.47
No Name Role12.101.45
Brother Complex Personality12.061.43
Voyeurism Subject of (Sexual)11.951.35
Full Brother Role11.951.35
Boyfriend Role11.861.29
Boku Personality11.781.23
Cheerful Personality11.741.20
Older Brother Role11.731.20
Reserved Personality11.711.19
Relaxed Personality11.641.13
Full Sister Role11.561.08
Girlfriend Role11.541.06
Energetic Personality11.521.05
Medium Breasts Body11.511.05
Orange Hair11.511.05
Smart Personality11.461.01
Younger Sister Role11.451.00
Green Eyes11.020.71
Teen Body20.620.68
Short Hair20.610.67
Straight Hair10.940.65
Slim Body20.580.63
Brown Eyes10.900.62
High School Student Role10.850.59
Virgin Sex Engages in (Sexual)10.850.59
Brown Hair10.680.47
Pale Body20.370.40