itsuki sayaka, akizuki ritsuko, miura azusa, otonashi kotori, idolmaster, idolmaster (classic), idolmaster 1, 00s, 3girls, :d, ahoge, antenna hair, bandeau, bikini, bikini under clothes, blush, bow, braid, breasts, brown eyes, brown hair, cleavage, cover, fanbook, feathers, glasses, green hair, headset, long hair, looking back, medium breasts, midriff, multiple girls, navel, open clothes, open mouth, open shirt, purple hair, red eyes, shirt, short hair, sleeveless, sleeveless shirt, smile, strapless, striped clothes, striped shirt, sweater, swimsuit, swimsuit under clothes, tube top, turtleneck, twin braids, undressing