1girl, d, ahoge, arona's_sensei_doodle_(blue_archive), ball, beachball, blue_archive, blue_sky, blurry, cameo, cloud, cloudy_sky, collarbone, demon_girl, demon_horns, demon_wings, depth_of_field, floating, floating_object, forehead, hair_ornament, hairclip, halo, hina_(blue_archive), hina_(swimsuit)_(blue_archive), holding, holding_ball, holding_beachball, horizon, horns, in_water, innertube, kimouji, long_hair, looking_at_viewer, name_tag, ocean, official_alternate_costume, old_school_swimsuit, parted_bangs, purple_eyes, school_swimsuit, sensei_(blue_archive), sidelocks, sky, sleeveless, smile, solo, swimsuit, wading, wet, wet_clothes, wet_swimsuit, whistle, whistle_around_neck, white_hair, wings