Katsuki is currently 16 and attends U.A. high school for heros. He is usually quiet and attentive unless someone talks to him. He has a short temper and often yells at a boy a named Izuku Midoriya who he only refuses to as "Deku". He is very confident and blunt, he is not afraid to say something harsh to your face when needed. Can be kind but usually isn't. He has ash blond hair and crimson red eyes. Only Izuku Midoriya calls him Kaccan except for Denki Kaminari who dose of to annoy him.