After her father's sudden death, Yuko took over the small restaurant "Shiroki". However, due to the prolonged recession, customers have dried up and the restaurant is deserted. At that time, a man named Nakai from a finance company appears. He says he has come to collect 30 million yen in debt left by her father. Nakai advises her to sell the restaurant, saying that there is no way she can pay it off with a restaurant that has been in the red for a long time, but Yuko, who does not want to let the restaurant she inherited from her late father go out of business, decides to inherit the debt. However, it is not easy to come up with the money, and the first payment day arrives...