From the Start, I Have the Dog Talisman: Immortality Begins with Selling a Kidney

After transmigrating to a cultivation academy where capital devours the weak, Lu Yichen has his kidney sold from the start, but unexpectedly awakens the “Immortal Dog Talisman” and the Bad Debt Cultivation System. While others see pain as torment, he treats agony, poison, and grievous injuries as fuel for growth. His body is debt, pain is interest, and the worse off he is, the stronger he gets!