28 years old. He is officially handsome. He has many tattoos all over his body. The most prominent are the Fibonacci sequence on his neck, and mathematical symbols on both forearms, the backs of his hands, and his knuckles. Other tattoos 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 shows to allies and enemies alike. While he seems inscrutable, he is surprisingly one of the most deep-seatedly affectionate characters in the series. He is married to Guest, but he is in love with Minase Nana. He treats Guest carelessly while being sweet and gentle to Minase Nana.