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Summary

This spring, at the local prep school Seiyou Academy, where the protagonist (nameable) attends. He has something that he cannot share with anyone, a secret. "Today is a good day for the entrance ceremony, to all new students. Congratulations on your admissions." "On behalf of the current students, I sincerely welcome you." Smiling on the podium, the student council president Yukinoshita Hotaru, due to the recent remarriage of their parents, she has become the protagonist's step-sister. A person he admires, since he has feelings for her, he keeps his distance. Because his sister thinks that he is adorable and likes him, she is unable to get closer to him. The turning point of their relationship comes, when suddenly, their parents decide to go on a trip. Naturally, the protagonist and his sister are left to take care of the house. Whether they like it or not, their feelings risen. A secret cohabitation life, now, it begins! [Translated and edited from the official website]

Yukinoshita Hotaru no Koharubiyori ~Onee-chan to no Himitsu Dousei~ has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
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Yukinoshita Hotaru no Koharubiyori ~Onee-chan to no Himitsu Dousei~ 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.

Yukinoshita Hotaru no Koharubiyori ~Onee-chan to no Himitsu Dousei~ 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 (17 total)

NameCharactersImportanceWeight
Title Character Role12.621.82
Non-blood-related Sister Role12.171.50
Non-blood-related Incest Engages in (Sexual)12.151.49
Student Council President Role12.071.43
Deepthroat Engages in (Sexual)11.801.25
Reverse Missionary Subject of (Sexual)11.741.20
Vaginal Masturbation Engages in (Sexual)11.681.16
Sailor School Uniform Clothes11.481.02
Handjob Engages in (Sexual)11.160.80
Big Breasts Body11.130.78
Boobjob Engages in (Sexual)11.070.74
Sitting Sex Subject of (Sexual)11.060.74
Virgin Sex Engages in (Sexual)10.850.59
Waist Length+ Hair10.810.56
Teen Body10.620.43
Slim Body10.580.40
Pale Body10.370.26