The Dog Talisman at the Beginning, the Immortal Cultivation Begins with Selling a Kidney

Traveling to the Cultivation Academy where capital cannibalize people, Lu Yichen was sold his kidney at the beginning, but unexpectedly awakened the "Immortal Dog Spell" and the "Bad Debt Training System". While others regard pain as torture, he regards severe pain, severe poison, and serious injuries as materials for becoming stronger - his body is a liability, pain is interest, and the worse he gets, the stronger he gets!