A few years into their marriage, Sei's life with her husband had become monotonous. Her only joy was chatting with Yukako, the wife of the Sato family who lived next door. Today, she headed to the Sato residence with fruits sent from her parents' home and heard Yukako's voice from the garden... "Why do you soil your underwear every day!?" It seemed Yukako was scolding her son Kota for having a wet dream. Sei imagined Kota, now at an age where he couldn't handle his sexual urges, and felt her heart race. Then, the next day, she finally had the chance to be alone with Kota...
