You Told Me to Burn My Life for Cultivation, So Why Are You Burning Someone Else’s?

After transmigrating to a world of immortal cultivation, Shi Yan discovers that while others need money to cultivate, he needs years of his life. While other cultivators save spirit stones, gather spirit herbs, and seek opportunities in the hope of attaining immortality, Shi Yan realizes that the only way he can ascend to immortality seems to be by spending his lifespan. First level of Qi Refining: three years of life. Second level: ten years. Third level: thirty years... But as an ordinary man who transmigrated here, where is he supposed to get that much lifespan? Fortunately, he has the Book of Lifespan. As long as he lends his lifespan to others, he can collect interest by loaning it out. You’re nearing the end of your days and want to take a chance, so you’re planning to borrow ten years of lifespan from me? Sure. Once you break through, just pay me back thirty years!