Kaori works as a lecturer at Teito Seminar, one of the leading preparatory schools in Japan. There was a problem child in the class that Kaori was in charge of at the emperor cicada. Yuma Okumura, aspiring to a private medical school. However, Kaori was in trouble because of his poor grades and lack of motivation. Because his father was a big investor in this emperor cicada. The instructors put pressure on Yuma to improve his grades no matter what. And Yuma toyed with Kaori's body and made her do a special obscene class.
