1girl, ahoge, arms_behind_back, bad_pixiv_id, beach, bikini, blonde_hair, blue_sky, blush, breasts, cleavage, cloud, collarbone, cowboy_shot, curtains, day, green_bikini, green_eyes, groin, halterneck, hoshii_miki, idolmaster, idolmaster_(classic), large_breasts, light_blush, lmsu, long_hair, looking_at_viewer, navel, ocean, outdoors, sidelocks, sky, smile, solo, standing, stomach, striped, striped_bikini, swimsuit, thigh_gap, thighs, water