tsukigami runa, akizuki ritsuko, futami ami, futami mami, hagiwara yukiho, minase iori, miura azusa, idolmaster, idolmaster (classic), idolmaster 1, 00s, 6+girls, barefoot, beach, bikini, bikini skirt, blush, brown eyes, brown hair, day, everyone, flat chest, hairband, leg lift, long hair, midriff, multiple girls, outdoors, palm tree, ponytail, purple hair, sarong, short hair, siblings, side ponytail, sisters, striped bikini, striped clothes, swimsuit, tankini, tree, twins