it is a trap

A female anime character with long dark hair and a white collared shirt with a green bow tie is shown in a close-up, then the camera quickly pulls back to reveal her lying on her back with a surprised expression, followed by a shot of her legs in a striped skirt and stockings, then a different character with light hair and a blue top appears, looking down with a slight smile, then looks up with a surprised expression, and the sequence ends with a return to the first character's chest.