hikawa shou, ibuki suika, touhou, frilled swimsuit, highres, non-web source, 1girl, adjusting clothes, adjusting swimsuit, ass, bare legs, bare shoulders, barefoot, beach, bracelet, casual one-piece swimsuit, cloud, dutch angle, fang, female focus, flat chest, frills, from behind, greyscale, horns, innertube, jewelry, kneepits, long hair, looking back, monochrome, ocean, one-piece swimsuit, one-piece tan, ribbon, seaweed, skinny, solo, swim ring, swimsuit, tan, tanline, thigh gap, thighs, walking, wavy mouth, wet, wet hair