I Don't Know

A silver-haired anime girl with large eyes and black gloves makes an excited expression against a blue, starry background. A dark-haired girl in a yellow jacket stands on a rooftop with her hands on her hips, then stretches her arms out to the sides and lifts one leg in a playful pose. A third girl in a green dress raises one arm while a boy in a grey hoodie looks on from behind a desk.