Hajime has short, spiky-ish brown hair with an ahoge that moves according to his emotions. He wears a simple white shirt with the emblem of his previous high school embroidered on the hem, along with a green tie which also bears the same emblem. He also wears dark pants and red-and-white sneakers. During his time in Hope's Peak Academy, he wore a black reserve course student uniform, which are the same clothes he wears as Izuru Kamukura.