Nao, a female teacher engaged to a colleague next spring. Nao was enjoying a smooth sailing school life. One day, Nao is caught by one of her students being affectionate with her fiancé on campus. The student uses this incident to coerce a physical relationship with Nao. In the steamy summer school building, sweating profusely, Nao is pressured by the student. However, it gradually turns into pleasure.
