1girl, alternate hairstyle, bikini, blonde hair, blue bikini, blue eyes, double bun, earrings, flower, hair bun, hair flower, hair ornament, hair up, idolmaster, idolmaster cinderella girls, innertube, jewelry, light blush, looking at viewer, mmmx (fittails), ocean, ohtsuki yui, plaid, plaid bikini, ring, sidelocks, solo, swimsuit, tongue, tongue out, two-tone bikini, white bikini