One evening, while Satomi was taking a bath, the doorbell rang. She hurriedly came out wearing only a bath towel, and it was a parcel delivery man. (The delivery man from before was young and handsome...) After receiving the package, Satomi returned to the bathroom and indulged in masturbation while fantasizing about an affair with the handsome delivery man. (...Was that wife alone?) The delivery man, realizing that Satomi was alone at home, was drawn back by the sweet scent of her shampoo and sneaked into the house...