In a Tokyo where falling bubbles have broken gravity, a daring parkour athlete meets a girl whose abilities connect him to the city's mystery.
Hibiki competes among crews using the altered city as their course. Uta's arrival changes the balance between athletic risk, life with his team and an unexpected personal bond.
The abnormal city gives its young residents a way to compete, move and form makeshift groups. Hibiki's willingness to take risks makes him valuable to his crew while also leaving him in danger. Uta enters through that danger, and the sound the pair can hear gives their connection a mystery beyond ordinary attraction. Consider it for a romantic adventure that makes movement through unstable space part of how its characters approach one another.