Onii-nyan

A pink-haired anime girl with glowing blue cat ears and a tail crouches low in a dimly lit room, her expression shifting from playful to startled as she looks back over her shoulder. The scene cuts to a man in a black and white sailor-style outfit with a large black mask covering his head, his mouth open in a scream as he sits on a couch, then falls forward onto the cushions, while other anime girls with cat ears and tails appear in various states of distress or surprise.