1girl, anywhere_knock, arm_support, bad_pixiv_id, barefoot, beach, blue_eyes, blue_sky, breasts, brown_hair, casual_one-piece_swimsuit, cleavage, cloud, crab, day, frilled_one-piece_swimsuit, frilled_swimsuit, frills, hat, long_hair, medium_breasts, one-piece_swimsuit, open_mouth, original, outdoors, sitting, sky, solo, swimsuit, white_one-piece_swimsuit, yokozuwari