1girl, ahoge, blue_archive, blue_one-piece_swimsuit, closed_mouth, collarbone, demon_horns, hair_between_eyes, hair_ornament, hairclip, halo, hina_(blue_archive), hina_(swimsuit)_(blue_archive), holding, holding_innertube, horns, innertube, long_hair, looking_at_viewer, moon, multiple_horns, name_tag, natori_sana_(artist), official_alternate_costume, old_school_swimsuit, one-piece_swimsuit, parted_bangs, purple_eyes, school_swimsuit, solo, standing, swimsuit, very_long_hair, wet, whistle, whistle_around_neck, white_hair, wings