His family was killed by the Pure Blood. Eight years after that incident, he has joined the International Security Section (ISS) as one of the 12 Apostles. He wields a pistol and is an extremely skilled marksman, he can move swiftly and quickly behind his enemies and dodge attacks. The reason for this is because he trained hard to become strong enough to slay the Pure Blood. Even though he is said to be unapproachable while wielding a gun and has a tragic past, he is still a kind and loyal person. He is also said to be a neat freak, tidying up the paperwork that piled on his desk and aligning them perfectly.