Yuji Kayama was a student at Juuban Municipal High School, and the captain of the Juuban American-style football team. He was considered to have a bright future in the world of sports.
Yuji is a tall highschooler who has tan skin, dark hair, and brown eyes. He is also very muscular (probably due to his training), which is probably one of the two reasons Iron Mouse chose him as a target.
Yuji's family name means "increase" (加) and "mountain" (山). His given name means "masculine" (雄) and "second" (二).