Qin Chuan grew up in the mountains and was an expert in medicine and martial arts. Before his death, his master left him no property and only gave him an old wooden box.
There are seven IOUs in the box.
He went down the mountain to collect debts, and the first IOU was thrown into the engagement party of Su Wanqing, the first female president of Jiangcheng. What the Su family owes the Qin family is not money, but a marriage contract.
Everyone laughed at him as a liar from the mountains. Only Su Wanqing's father lost his temper on the spot after seeing the old seal of the IOU. Qin Chuan originally thought that he was just collecting debts for his master, but he soon discovered that behind the seven IOUs were hidden seven lives, seven forces, and the truth about the Qin family's old case twenty years ago.
The female CEO owes a marriage contract, the policewoman hides the case file, the female doctor holds a fake autopsy, and the underground lady carries a life on her back.
When the seven debts were reunited, Qin Chuan realized that the fingerprint on the last IOU was actually his own fingerprint.
