The day Tan Zheng's father jumped off the building, he was left with a debt of 100 million. The creditor blocked the door, the girlfriend ran away, and the house and car were confiscated. While he was squatting in the rental house eating steamed buns, a message popped up on his phone: The debt replacement system has been activated. The first task is to recover the 3 million arrears of Yu Mazi, the old man from the south of the city, within three days. If you recover it, You Mazi's debt will be yours to take charge of, and your debt will be wiped out by three million. If you can't recover it, your debt will double. Tan Zheng stuffed the steamed bun into his mouth and wiped his face. Dry. Anyway, the worst thing is death. If you die, you don't have to pay back the money. What he didn't know was that there was a bigger picture behind this system. Every time he pursues a debt, he gets one step closer to the core of the game. And that situation was related to his father's death.