After a disappointing date, a tired and frustrated student named Fumika returns home and picks up a bullet casing from the assassin Hideo Kudo, who was killed. Now, Fumika can not only see Kudo's ghost but also allow him to possess her body, gaining the skills of a skilled assassin. Fumika, not thrilled with the ghost's presence, sets out for another date, and Kudo, sensing something amiss, follows her.