Atsushi Nakajima from Bungou Stray Dogs appears to have an ISTJ (Introverted Sensing Thinking Judging) personality type. This personality type is characterized by a strong sense of responsibility, loyalty, and practicality. Atsushi is an 18-year-old young adult with light gray hair, pale skin and an average height. His hair is short, with purple on the top half and yellow on the bottom, framing his irises. He keeps a loose lock of hair longer on the right side of his face, near his yellow eye.