Funny

A young woman with short dark hair looks forward with a gentle expression, then the scene cuts to a hand resting on a person's back, followed by a bright flash, then a girl with long pigtails smiling down, then a girl with wide eyes and a hand near her mouth in shock, and finally three girls sitting on the floor in a room, one with cat ears and tails, another with long pigtails, and the third with dark hair, all in a black and white animation.