Kiremonogatari

A hand holds a small object, then a girl with black hair and a red scarf opens her mouth wide as the object is inserted, followed by a close-up of her face with the object in her mouth; the scene shifts to two girls on a seesaw in a gym, then to a girl in a blue dress and a boy in a red shirt on a street, where the boy crouches and the girl looks down, before the boy stands and the girl looks up.