idolmaster, idolmaster (classic), idolmaster cinderella girls, idolmaster dearly stars
futami ami, hidaka ai, shibuya rin
arimura yuu
3girls, ass, blush, bow, bow panties, bra, brown eyes, brown hair, green eyes, in-franchise crossover, lingerie, long hair, looking back, multiple girls, navel, panties, red eyes, short hair, smile, underwear, underwear only, waving, white bra, white panties
commentary request