Ryusei has a laid-back attitude, remaining calm and collected even in the most challenging situations. Confident in his looks and charm, he’s never shy about calling himself handsome. His playful nature and teasing personality make him popular among his peers, as many see him as a sweet, harmless guy. However, beneath this friendly facade lies a dangerous side—he’s a former First Division Vice-Captain of the Tokyo Manji Gang. Despite his tough past, Ryusei has one fear: dogs.