Become Invincible from the Cultivation Level of Borrowing Money

Others practice taking drugs, but Lu Zheng relies on loans to practice. System: "Congratulations to the host, you have successfully borrowed Qi and Blood Realm cultivation. The daily interest rate is 1%. If it is overdue, you will be responsible for the consequences." Lu Zheng: "Is it too late for me to go back now?" System: "Interest has accrued, please repay as soon as possible." Thus, Lu Zheng began a miserable life of working every day to repay the loan, taking time to slap his enemies in the face, and break through the realm at the same time. Years later, ferocious beasts from around the world besieged humans. Lu Zheng sighed: "It seems that we can only take another big loan."