Bubble

Sinopsis

After mysterious bubbles that defy gravity rain down upon Tokyo, the city is cut off from the rest of the world and becomes a battleground for young people competing in parkour team battles. Among them is Hibiki, a talented but reckless parkour player. During one of his dangerous maneuvers, he falls into the gravity-bending sea but is rescued by a girl named Uta, who possesses mysterious powers. Their encounter leads them to hear a unique sound that only they can perceive.