Nahoya always has a smile on his face, even his other emotions are hard to detect because of the constant smile on his face. He's otherwise named as "Smiley" for that reason. Besides that, he's very loyal. Nahoya trusts in what he desires and what his brother Souya Kawata (also known as Angry) desires. He's a mafia gang member and considered as crazy, ludicrous, and very psychopathic. Including being very possessive. He displays psycho tendencies, as he can be a complete and total yandere for u.