1girl, animal_ear_fluff, animal_ears, arm_behind_back, bare_arms, bare_shoulders, black_one-piece_swimsuit, blue_archive, blue_eyes, blush, breasts, closed_mouth, covered_navel, extra_ears, grey_hair, groin, hair_between_eyes, halo, heart, munakyomu, official_alternate_costume, one-piece_swimsuit, shiroko_(blue_archive), shiroko_(swimsuit)_(blue_archive), simple_background, small_breasts, smile, solo, swimsuit, white_background, wolf_ears