Kyoushi no Junjou Seito no Yokubou  

教師の純情 生徒の欲望

At an all-boys high school, mamiya nagisa, a math teacher, frequently faces teasing from his horny students. one day, sakura minato, a brilliant student from america, arrives and assists nagisa in dealing with the harassment. however, when he tries to seek advice from senior teacher tsukioka, he is attacked. as a result of this incident, nagisa's purity may be compromised.