After five years, I met my older cousin, Shiori Kuraki, who teaches me masturbation. (DVAJ-335)

Five years have passed since then. Back then, Shiori Kuraki, still a student, had a physical relationship with her cousin, Masashi. They talked about it, but nothing happened; she only taught Masashi how to masturbate. Feeling embarrassed afterward, she distanced herself from Masashi. When they met again, her cousin's sexual desire drove her to the brink of madness!