inou shin, hoshii miki, otonashi kotori, dengeki g's, idolmaster, idolmaster (classic), official art, third-party edit, 2girls, :d, ahoge, barefoot, beach, bikini, blonde hair, cloud, day, front-tie top, green eyes, green hair, headset, index finger raised, innertube, layered bikini, multiple girls, navel, ocean, one eye closed, open mouth, outdoors, palm tree, red eyes, shaded face, side-tie bikini bottom, smile, swim ring, swimsuit, tree, water, wavy mouth