Usui Horokeu (碓氷ホロケウ Usui Horokeu, 4Kids: "Trey Racer"), nicknamed Horohoro (ホロホロ), is a fictional character in the Shaman King manga and anime series. He is part of the Ainu Tribe, the son of Usui Lycan, and the older brother of Usui Pirica. During the Shaman Fight of 2000 AD, he forms Team "The Ren" together with Tao Ren and Chocolove McDonell.