Lu Pengchi was lying under the car changing the oil when the rolling shutter door of the car repair shop was kicked open. "Pengchi, when will you repay the three thousand yuan you owe me?" Old Liu, the loan lender, held a cigarette in his mouth. "Brother Liu, if you give me a few more days, everyone who repairs the car will get credit on credit this month..." "Credit? You should follow the example of the mahjong parlor next door. They have collected a bunch of IOUs." Lu Pengchi wiped the oil on his face and smiled bitterly. This is the rule of Linjiang Prefecture: neighbors never write notes when borrowing money or things, it all depends on their own conscience. But he was such a bad guy, and the money he lent was enough to buy a second-hand car. It was at this time that Yuan Bao got into the shop. A dirty orange cat held a piece of scrap metal and threw it at his feet. "Cat food for scrap metal?" Lu Pengchi didn't know whether to laugh or cry, and threw the piece of iron into the corner. The next day, Uncle Zhou from the antique market slapped the table: "This is a gilt copper seal from the Ming Dynasty! Where did you pick it up?" Yuanbao squatted on the counter and licked his paws, flicked his tail, and jumped onto the antique stall opposite. Only then did Lu Pengchi realize that this cat only went after things that could make him rich. So the car repair shop added a new sign: "Master Cat Appraises Treasures, Free Car Repairs." At the wine party, the developer held up a glass of white wine: "Xiao Lu, after drinking this glass, we can discuss the demolition compensation." Yuan Bao jumped on the table, knocked over the wine glass with one paw, and peed on the other party's trouser legs. The whole place was dead silent. Lu Pengchi picked up the tea bowl and said, "I'm sorry, Master Cat said he doesn't recognize your wine." On the day of the mobilization meeting for the renovation of the old street, Yuan Bao suddenly rushed into the construction site and dug up the foundation like crazy. A bluestone slab was exposed under the soil, with three words engraved on it - "Linjiang Mansion". That was the property deed for the entire street, which had been buried for sixty years.