Souichirou Yagami is Light's father and the leader of the remains of his investigation team under L's command. He is a kind man with a strong sense of justice. He cares greatly for his family and the members of the Japanese Task Force. He is a serious and responsible man that gains the respect of many. He has a strong sense of duty, and even after the police stop funding the Kira investigation he continues trying to solve the case with the Task Force.