Atsushi portrays a sense of strong confidence as he's the leader of his small group of delinquents. As the leader of the group, Atsushi cares for his friends. He knows that Takuya isn't good at fighting and wished to take his place so that Takuya doesn't get hurt. He was ready to kill Kiyomasa in order to save himself and his friends from a dire situation as he couldn't see any other way out.