shiina you (tomoshibi), amami haruka, kisaragi chihaya, idolmaster, idolmaster (classic), translated, 00s, 2girls, abs, bare shoulders, bikini, bikini top only, blue hair, blush, breasts, brown hair, female focus, flat chest, green eyes, groin, jewelry, long hair, midriff, multiple girls, muscular, navel, necklace, role reversal, sarong, short hair, simple background, sitting, small breasts, swimsuit, tankini, toned, toned female, unmoving pattern