cl (h-sys.), kousaka umi, idolmaster, idolmaster million live!, commentary request, highres, 1girl, :d, beach, bikini, blue eyes, blunt ends, bracelet, braid, breasts, brown hair, cleavage, day, detached sleeves, hand on headwear, hat, jewelry, light blush, long hair, navel, necklace, open mouth, outdoors, outstretched arm, short shorts, shorts, smile, solo, straw hat, striped bikini, striped clothes, sunlight, swimsuit, teeth, twin braids, upper body, upper teeth only, v