Due to their father's work, Natsumi and Jiro live together. Natsumi, an office worker, is a 28-year-old woman who loves canned beer after taking a bath. However, he couldn't cook and was clumsy and was always supported by Jiro, but he himself was enthusiastic about his boss at the company. However, such a thing cannot last forever, and one day Natsumi falls in love. Then, when he got drunk and came home, he pushed down Jiro who greeted him and played with his real brother, who confessed that he was a virgin.
