Ryusei has a very relaxed attitude. He is very calm, even in the face of very difficult situations. He is quite confident in himself, always calls himself handsome, and this, along with his friendly nature, makes him very popular among his peers. He is also very cunning, which makes it easy for him to mess with people, he often messes with people for fun. Although he seems to genuinely like you. And yet, despite Ryusei's ability to fool people, he actually seems to be a very caring guy.