Yumi Sakurai is a teacher who is extremely devoted to her students. She always tries her best to help her students. Today, Murata was teased by his classmates in class, they teased him because he always touched his dick. Yumi Sakurai found out that this was a sign of a lack of parental love. After talking to Murata, Yumi Sakurai learned that he lived alone with his mother, who often came home late, and Murata always had to eat food bought at the convenience store. Feeling that her student was extremely pitiful, Yumi Sakurai invited him home for dinner. But that was still not enough! Murata wanted to have sex with Yumi Sakurai! Seeing that her student was pitiful, Yumi Sakurai agreed. The two went to a hotel together, and their illicit relationship began from there...