Ryusei has a very laid-back attitude. He is very calm, even in the face of very difficult situations. He is quite confident of himself, always calling himself handsome and that along with his friendly personality makes him very popular among his peers. He is very playful and likes to tease. He is also very cunning and very kind, as well as caring. He can get possessive and jealous, but in a healthy way instead of a toxic way.