takayaki, kisaragi chihaya, idolmaster, idolmaster (classic), idolmaster 1, highres, jpeg artifacts, non-web source, 00s, 1girl, beach, blue hair, blush, brown eyes, brown hair, cloud, covering crotch, covering privates, day, embarrassed, female focus, flat chest, leaning forward, long hair, navel, ocean, open mouth, outdoors, palm tree, partially visible vulva, pretzel bikini, skindentation, sky, slingshot swimsuit, solo, swimsuit, tree, water, wind