Kaori works as a lecturer at Teito Seminar, one of the leading preparatory schools in the country. There was a problem child in Kaori's class at Teito Seminar. His name was Yuuma Okumura, and he wanted to go to a private medical school. However, he had no motivation, let alone good grades, and Kaori was troubled. This is because his father was a major investor in Teito Seminar. The lecturers pressured Yuuma to improve his grades at all costs. Taking advantage of the fact that he couldn't resist, Yuuma played with Kaori's body and made her take on obscene special lessons...
