1girl, animal_ear_fluff, animal_ears, bare_arms, bare_shoulders, black_one-piece_swimsuit, blue_archive, breasts, collarbone, competition_swimsuit, earrings, extra_ears, feet_out_of_frame, grey_hair, halo, jewelry, looking_at_viewer, medium_breasts, official_alternate_costume, one-piece_swimsuit, scarlet23i0, shiroko_(blue_archive), shiroko_(swimsuit)_(blue_archive), short_ponytail, simple_background, sitting, solo, swimsuit, white_background, wolf_ears