A Shiori busts the manager Yoshihiro peeking at her ass, and someone has installed a spy camera in the restroom. Later she herself gets accused of stealing from the store. She says she is innocent, but do not want to risk her job.

Yui cannot stop thinking of what she witnessed on the security camera the previous day, her uncle fucking Shiori. Thinking on it gives her mixed feelings. She ends up confronting Yoshihiro.

Yui and Shiori are now both intimate with Yoshihiro. Yui even give service at his home. Then Shiori also comes to visit.

Yui’s mother, Mao, witnessed Yui and Shiori fighting over Yoshihiro outside the store. She sends the girls home alone, and goes inside with Yoshihiro

Mao, Yoshihiros older sister, changes her personality after she also ended up getting fucked by Yoshihiro. She is more dominating than she first appeared, it appears she always has had a sexual hold over Yoshihiro ever since their childhood.