in one in one

A yellow water slide ride carries a group of anime characters through a blue, water-filled tunnel, their expressions shifting from excitement to shock as the ride accelerates. The scene cuts to a close-up of a character screaming, then to two girls in school uniforms lying on a walkway, followed by a girl playfully grabbing another's face, a smiling girl with long hair, and finally a group of four girls in school uniforms posing together.