He is a student at Shujin Academy and a former track star who lives a double life as a Phantom Thief. Ryuji has short spiky dyed blond hair and dark brown eyes. He has a noticeable widow's peak and his eyebrows are unusual in that he lacks the outer sides. He is shown to be muscular. Ryuji is known as a disruptive "problem student" at school- Though there is truth to his terrible temper, this causes a misunderstanding as there is more than meets the eye, however, as Ryuji is actually upbeat.