I Have a Debt of 1 Billion and Am Cultivating Immortality by Selling Talismans.

Traveling into the world of cultivating immortals, I owe a debt of one billion spiritual stones, and the interest is paid daily. I set up a stall and sold earthly peace charms for ten yuan each. Everyone laughs at me. Until the demon king came, I used a talisman to blow him up into a colorful killer. Later I learned that this debt could not be repaid even by the whole world of immortality. But it doesn't matter. I have a pen and paper in my hand, and I have the support of a bad old man hiding in the dark. There is still a long way to go, so the interest will still be calculated.