korokoro_nekoz, serika_(blue_archive), serika_(swimsuit)_(blue_archive), year_2024, 1girl, animal_ear_fluff, animal_ears, bare_arms, bare_legs, bare_shoulders, beach, bikini, black_bikini, black_hair, blush, breasts, cat_ears, closed_mouth, collarbone, cowboy_shot, day, extra_ears, frilled_bikini, frills, hair_between_eyes, halo, long_hair, looking_at_viewer, navel, ocean, official_alternate_costume, outdoors, pink_halo, red_eyes, signature, small_breasts, solo, swimsuit, twintails, highres, blue_archive