Bum.

A pink-haired girl in a bikini stands on a volleyball net, smiling and posing with a large pink feather, then swings it in a circular motion. The scene cuts to a close-up of a girl with wide eyes, then to a black-haired girl in a cat-eared swimsuit kicking a blonde girl with glasses, who is holding a long stick. The setting is a beach with a purple sky and palm trees.