1girl, animal_ears, arms_behind_back, beach, black_one-piece_swimsuit, blue_archive, blue_eyes, breasts, chengxiang_dsa, competition_swimsuit, cross, cross_hair_ornament, extra_ears, grey_hair, hair_ornament, hairclip, halo, inverted_cross, medium_breasts, ocean, official_alternate_costume, one-piece_swimsuit, outdoors, sand, shiroko_(blue_archive), shiroko_(swimsuit)_(blue_archive), sitting, solo, spread_legs, swimsuit, thighs, water, wolf_ears