Yasuomi Ohno, a math teacher at a prep school, is single and has no girlfriend. He has trouble communicating with girls, so he begs his student, Kasumi Akimoto, who always…

Ryoichi Yoshimori is a university student. His girlfriend Kyoko Sawada is older than him, but he enjoys his time with her. After Ryoichi proposes to his girlfriend, she suddenly disappears…