1girl, ahoge, bangs, bare legs, blue archive, blue one-piece swimsuit, demon wings, film grain, full body, hair ornament, hairclip, halo, hina (blue archive), hina (swimsuit) (blue archive), holding, holding innertube, innertube, long hair, looking to the side, low wings, official alternate costume, one-piece swimsuit, outdoors, parted bangs, parted lips, purple eyes, sandals, school swimsuit, sky, solo, swimsuit, takashima shoa, very long hair, whistle, whistle around neck, white hair, wings