After dying in a car accident, a burned-out male gamer reincarnates in Kivotos as Rei Jūryoku — a low-key middle school girl with a unique gravity-manipulating halo and wrist ring. Despite possessing physical prowess equal to Hina Sorasaki and combat ability on par with Armed Hoshino, she refuses to join any academy and instead focuses on illegal underground street racing. She stays deliberately under the radar while using her powers for physics-defying stunts, but the mysterious “gravity falls” she leaves behind slowly draw the attention of Millennium’s Rio, Himari, and engineering clubs — forcing her to decide how long she can keep running from the larger conflicts of Kivotos.