Suguru is a tall man with long black hair tied to the back of his head, and a strand falling in front of his face. He has narrowed eyes and large earlobes, each of which has a piercing. In 2006, when he was still a student at school in Tokyo, Suguru had shorter hair that he tied in a bun, while retaining his signature lock. His school uniform consisted of a long-sleeved dark blue jacket, dark blue baggy pants, and black shoes.