Evil Heart

Middle schooler Masaki Umeo’s bad temper keeps drawing him into fights and causing trouble, leaving his sister worried about him. When he comes across an Aikido class, he is interested at first but soon gives up on it. Then Umeo meets Daniel, an English teacher from Canada who teaches him Aikido in the hope of helping him find a different outlook on life. Changing Umeo’s ways is not simple, however, because a dark reason lies behind his temper.