Shishiba is a tall and slim man in his mid-twenties with long blond hair worn loose and black eyes. He wears a white t-shirt under a black suit and a tie with a grey hammerhead shark-shaped pin, though he sometimes omits the jacket. He has an explosion-shaped scar on his left chin as a result of his rematch against Yotsumura. He lost his ring and pinkie fingers on his left hand. Sometime later, Shishiba reattaches his two severed fingers, with him now wearing a glove over the two fingers to cove