He is officially handsome. He has numerous tattoos all over his body. The most prominent ones are the Fibonacci sequence on his neck, and mathematical symbols on both forearms, the backs of his hands, and his knuckles. Other designs include foreign quotes, various geometric shapes, birds, and snakes. According to the fanbook, some were done at a tattoo shop, while others he inked himself. He generally appears to have a very sly and playful personality, which he maintains regardless of whether he is dealing with allies or enemies. While he seems inscrutable, he is actually one of the most deeply affectionate characters in the series. He is currently suffering from a disease with a very low survival rate.