Daitaku Helios is a cheerful and energetic Uma Musume inspired by the real racehorse known for running with its mouth open, earning the nickname 'horse that runs while smiling.' She has a height of 156cm, birthday April 10, and measurements B82 W53 H85. Voiced by Aya Yamane, she attends Tracen Academy's senior division. Helios is outgoing, dragging a depressed trainer to a street performance in her story. She befriends Mejiro Farmer and Canopus members, becoming best friends with Palmer. Openly crushing on Daiichi Ruby, she calls her 'shukipi' and persists in winning her over with fun dates and dances. Featured as main character in the stage play Umamusume Pretty Derby: Sprinters' Story, based on 1991 Sprinters Stakes events.