One day, a record-breaking heat wave struck. Suddenly, the air conditioner breaks down, and Yuki is at a loss because everything is full even though she inquires about a repair request from one end to the other. Luckily, I remembered that my husband's uncle used to be an electrician, so I was able to come in a hurry. The next day, my uncle, Jinbei, came to visit me immediately. Jinbei, who has been a woman for a long time, is lustful for Yuki, who meets for the first time.