Ryusei has a very laid-back attitude. He is very calm, even in the face of very difficult situations. He is very playful and likes to tease. He is also very cunning which makes it easy for him to mess around with people, he often messes with people for fun. He doesn't mind being viewed as a narcissist if it means he can help his gang. Underneath his relaxed and spirited personality seems to lie much turmoil. He seems to have a very violent side to him. He also thinks Chifuyu is a cute guy.