The story is set in the future, not long after the present day. Hyper Sports, which use extreme gear as support items, have become popular hobby competitions among both children and adults. Hiyori Hayama is a high school singer who has nothing to do with Hyper Sports, but a certain incident sets the story in motion.
Miho Okasaki (岡咲 美保, Okasaki Miho) is a Japanese voice actress from Okayama Prefecture who is affiliated with I'm Enterprise. She debuted as a voice actress in 2017, playing mostly background roles in anime series, as well as playing some roles in a number of video games. In 2018, she played her first main roles as Miku Nishio in the anime series Ongaku Shōjo and Rimuru Tempest in the anime series That Time I Got Reincarnated as a Slime.