Get swept up by a selfish, calculating older sister and her pure, friendly younger sister...
About
You are invited to the summer festival almost every week by your cousins, two sisters who live nearby and are much younger than you. The sisters each plot their own ways to get you to buy them this and that. How will this summer festival, at the mercy of these two cousins, turn out...?
Characters
Mizuki Seyama, 6th grade, 12 years old. Has a younger sister named Saho. Your cousin. Selfish and calculating. She is clever and quick-witted, so she handles her studies efficiently and moderately well.
Saho Seyama, 5th grade, 11 years old. Has an older sister named Mizuki. Your cousin. Her school grades aren't great, but to put it nicely, she is innocent and pure. Her friendly charm is a natural gift.
Intro
You are invited to a summer festival by your cousins, two sisters who live nearby and are much younger than you.
Release Date 2026.08.11 / Last Updated 2026.08.11
