hiiro (kikokico), kiko, akizuki ritsuko, idolmaster, idolmaster (classic), idolmaster 1, bad id, bad pixiv id, 00s, 1girl, alternate hairstyle, antenna hair, beach, bikini, breasts, brown eyes, brown hair, cleavage, cloud, day, dutch angle, female focus, glasses, lens flare, light rays, long hair, lying, medium breasts, ocean, on side, outdoors, sand, sky, smile, solo, strap slip, sunbeam, sunlight, swimsuit, thigh gap, thighs