Mei is a full-time housewife. If they only relied on her husband's salary, life would be very difficult, so Mei took a part-time job at a gyudon restaurant chain. There, she met Tanaka, a kind-hearted, honest student who was working part-time to cover living expenses. Mei's husband always works late into the night, and they haven't had a direct conversation in a long time. In contrast, Mei and Tanaka grew closer, and they enjoyed talking to each other. One day, Tanaka invited Mei out for drinks, and she shared her family issues with him. Tanaka listened intently, which moved Mei. Suddenly, she suggested to Tanaka to go to a hotel; although he was very surprised, of course, Tanaka would not refuse. And their relationship officially started from that point. They even had intimate moments right at the restaurant. But because the restaurant had surveillance cameras, both of them were fired. Tanaka will go look for a new part-time job, he will try to earn a lot of money, because now it's not just him, Tanaka will need to take care of Mei and the child in her womb...