Recently moved in, Yoshino spent his days cooped up in his room, feeling listless. One day, while looking out the window, he saw his neighbor, Yuka, hanging up laundry. Captivated, Yoshino made it a daily habit to watch her do laundry, but he couldn't shake the feeling that something was amiss with the strange stains on the sheets. As usual, he looked over at her house and saw Yuka in her bedroom, soaking the sheets while masturbating...