Wonderland

A girl in a pink school uniform repeatedly exclaims "Wonderland!" while standing in front of a plain background with her shadow cast behind her, then the scene cuts to her in a classroom where she stands over a sleeping classmate, followed by a shot of her walking with a long-haired girl, then peeking around a corner with a small creature, then raising her arms in excitement, and finally appearing in a triple image performing a synchronized dance move.