1girl, aa211108, arms_up, barefoot, bikini, black_bikini, black_hair, blush, breasts, breasts_apart, closed_mouth, dot_nose, green_eyes, half-closed_eyes, halterneck, idolmaster, idolmaster_cinderella_girls, large_breasts, legs, long_hair, looking_at_viewer, lying, mukai_takumi, navel, side-tie_bikini_bottom, sidelocks, solo, stomach, string_bikini, swimsuit, thighs, white_background