Lost his son's life because of his senior sister

A story about Nao Jinguji, an upperclassmen student who forced an underclassman, a boy who was still a virgin, always shy around her, to be her sex slave for 3 years. study.
In this series, the actress has a not-so-beautiful body, which can be said to be ugly if you're picky, but she has a sexy, lustful face, wears glasses and the movie's content is good, making the movie good. than.