Debt Collection from the Underworld: I Am a Local Government Agent in the Human World

My name is Gu Chen, and my whole family owes a debt to the underworld. My grandfather exchanged half his life for a short-lived life of ten years. My father's life was exchanged for my grandmother's soul - there were still two years left. When it was my turn, the system sent a collection notice: the total debt was 62 years old, and I had less than 10 years left. Either pay back the money or wait to die. I chose the third path. I replied back to the underworld system with a message: "Apply for installment." The person who reviewed me was a paper person, with Lin Chiling's voice and customer service tone. She said she wanted to pay in installments? Pass the survival test first. During the test, the system weaved a perfect home for me: grandma cooking noodles, father repairing cars, and the sun is always warm. It said stay, everything is cleared. I let go and let the key slip. The illusion was shattered, and the system rated "abnormal"—I created a knife it couldn't understand. Now, holding this invisible knife in my hand, carrying a debt that I can't repay, I count down the seven days to go to my father's car repair shop, which is monitored by "tools". Before his death, my grandfather left a message: "Don't let her pay it back alone." I have to find out what three generations have been trapped in.