After her father's sudden death, Yuko took over the small restaurant 'Shiraki.' However, due to the prolonged economic downturn, customers dwindled, and the shop was deserted. It was then that a man named Nakai from a financial company appeared. He said he had come to collect her father's outstanding debt of 30 million yen. There's no way a continuously loss-making store can pay that off, Nakai suggested selling the shop, but Yuko, who didn't want to close down the shop she inherited from her late father, decided to take on the debt. However, it's not like money will just appear, and the first payment date arrived…
