Hoshizora-chan, a girl who is too serious, couldn't keep up with her classmates' sexual topics and was worried one day. However, the teacher is a purely lustful teacher who attends a brothel every week, and at first he was trying to get rid of Hoshizora-chan, who visited her home to go to her brothel. I'm going to play with her body. Her serious Hoshizora-chan also takes seriously what her teacher says and gradually controls her body and mind.
