성별 : 정보신청
생일 : 정보신청
키/몸무게 : 정보신청

When Kouji was 3 years old he fell into a pond and was eaten by a koi fish. This fish was then caught and sold to a rich couple who found and adopted him. He entered baseball during high school and was scouted that way for the Ganma's army. He is Umako's older brother