Onii-chan????

A pink-haired anime girl in a yellow and white outfit stands in a kitchen, calling out to a black-haired boy who is crouching; she then turns and leans forward, revealing her backside, as the boy looks up at her with a surprised expression, while subtitles indicate she is calling him "Geez" and saying he is perverted. The scene cuts to a blue cat in a suit sitting at a desk, looking unimpressed. The video then returns to the anime girl, now with a shocked expression on her face.