There is a strange rule in Qing Wu Residence: helping people solve their worries does not collect silver, but only collects a sincere heart. Over the past three years, Qing Wu has already solved ninety-nine worries, and with just the last one left, she can pay off the old debt that has weighed her down for many years. Unexpectedly, just as the hundredth guest enters the door, the creditor also comes knocking—if the bill is not settled within three days, even the backyard of the tea house will be confiscated. What is even more coincidental is that the unjust debt brought by the guest also points to the same money shop.