niban (puka 0507), ohtsuki yui, idolmaster, idolmaster cinderella girls, commentary request, highres, 1girl, blonde hair, blue eyes, blush, breasts, cleavage, dress, frilled dress, frilled wrist cuffs, frills, hair ribbon, halterneck, holding, holding stethoscope, long hair, looking at viewer, medium breasts, o-ring, open mouth, pink dress, puffy short sleeves, puffy sleeves, ribbon, short sleeves, smile, solo, stethoscope, thighs, wavy hair, wrist cuffs