Her nephew, Hiroshi, is staying with her for a while to focus on his job search. Rei, who doesn't have any children yet, is happy to see her nephew, who has grown up, and is looking forward to seeing him again. One day, Rei accidentally sees her naked. The next day, Rei's naked body is burned into her head and she is begged by a sleepy Hiroshi to take his erect penis in her mouth... Rei can't hide her joy when she sees that Hiroshi has received a job offer, but her affair with Hiroshi is discovered by Hiroshi's father, Shuichi...