Mayu, a 24-year-old nurse working at a busy hospital, is a natural slut who has had a steady stream of men since her student days. One day off, she is stopped by a mysterious woman she meets at the station and in order to change her bad future, she is put under a spell that makes her unable to have sex for three years. Suspicious, Mayu approaches every man she can but she is unable to get a dick and her sexual desire finally reaches its limit. The day the spell is finally broken... Mayu, covered in worldly desires, completely loses her reason on the spot !!