Tu Shanjiu, a knife loaner who was burdened with an ancient curse, went down the mountain to fulfill his contract and made a marriage contract with Xie Shiyu, the son of luck. She went around collecting old knife debts with her ancestral account books, and while accumulating dowry, she resolved a series of strange metaphysical incidents with her ability to borrow knives on credit. Accompanying each other day and night, the two gradually fell in love. At first Tu Shanjiu just wanted to break the curse, but in the end they fell in love with each other and stayed together deeply.
