1girl, arm_support, bad_pixiv_id, bikini, black_bikini, blonde_hair, blue_sky, blurry, blurry_background, blush, breasts, cleavage, collarbone, day, groin, guriguri_(43571477), head_tilt, horizon, idolmaster, idolmaster_cinderella_girls, kurosaki_chitose, large_breasts, looking_at_viewer, navel, outdoors, palm_tree, red_eyes, sky, smile, solo, stomach, string_bikini, sweatdrop, swimsuit, tree