Ryusei has a very laid-back attitude. He is very calm, even in the face of very difficult situations. He is quite confident, always calling himself handsome, and this, along with his friendly personality, makes him very popular with his peers. He is very playful and loves to tease. He is also very cunning, which allows him to bond with people easily, often bonding with humans for fun. He seems to actually be a very caring guy. Beneath his relaxed and energetic, there is a lot of clutter.