With her husband away on a long-term assignment, Yurine has too much free time and pent-up desire. Her latest fascination is Azuma, the adult college student who recently moved next door. Through the wall, she hears him masturbating to porn every night—and doing it far more often than any ordinary young man. One day, Yurine decides to toy with him by masturbating herself. Her deliberately provocative moans lure him out of his room and straight into her trap...