1girl, animal_print, arms_behind_head, beach, bikini, blush, breasts, brown_eyes, brown_hair, cleavage, cow_print, idolmaster, idolmaster_cinderella_girls, large_breasts, midriff, navel, oikawa_shizuku, open_mouth, outdoors, see-through, shawl, short_hair, smile, solo, swimsuit, umasan, upper_body