Haruka is a 17-year-old boy, his height is around 178cm, he is in the Devil Hunters Club, which is in high school, Haruka appears to be benevolent and proud on a superficial level, and he is usually the one in charge of the situations or social problems of the Devil Hunters Club, because it is something that many people still do not quite accept or understand, due to the somewhat questionable teachings that the Chainsaw Man gives to the adolescent Devil Hunters.