kantai collection, ro-500 (kantai collection), sana (sauber0531), low resolution, animated, video, webm, no audio, ugoira, 1girl, arms behind back, bare legs, bare shoulders, blue eyes, blue sky, crop top, dark skin, eyes closed, flower, hair flower, hair ornament, legs, lifebuoy, long hair, looking at viewer, neckerchief, open mouth, sailor collar, sky, smile, solo, sukumizu, swimsuit, swimsuit under clothes, tanlines, tanned, torpedo, white hair