Kasane is a junior idol who is always cheerful and smiling, even to me, an old man. Every time I see the buds of her breasts that unconsciously assert themselves, I feel a desire to make them mine. At her first private photo shoot, I touch the nipples of Kasane, who knows nothing, because everyone does it. The development training escalates. The girl who dreamed of becoming an idol is forced to learn nipple orgasms.