A story of a certain son. Tatsuo, a son who goes to a university in the Tokyo metropolitan area and lives alone, was enjoying his student life there. Soon enough, he also got a girlfriend. However, being away from home for the first time, he was secretly homesick. Only after leaving did he truly appreciate his mother's greatness, reminiscing about it as he lived his life. Then, when she said she wanted to see old photos, he had a reason to go back home. And so, when he went back home with her, he found himself captivated by the charm of his mother, Annan Machimura, which he had never noticed before. It was because she exuded a feminine allure that was far beyond what his girlfriend could offer, to the point of being maddeningly irresistible…
