1girl, ahoge, bikini, blue_archive, blue_sky, blurry, blush, cloud, cloudy_sky, collarbone, depth_of_field, frilled_bikini, frills, hair_between_eyes, hair_bobbles, hair_ornament, halo, heterochromia, hoshino_(blue_archive), hoshino_(swimsuit)_(blue_archive), long_hair, looking_at_viewer, low_twintails, mizumok1, navel, ocean, official_alternate_costume, pink_hair, sidelocks, sky, sleeveless, solo, spaghetti_strap, stomach, sunlight, swimsuit, twintails, wading, white_bikini