How can you become an immortal if you don’t have money?

An old man asks a young man if he wants revenge. The young man replies that he has been humiliated by stronger men and treated like trash by his master, so of course he wants it. The old man pats his head, sighs, and offers to teach him skills. Surprised, the young man asks if that is really acceptable. The old man asks for his phone. After watching what appears on the screen, the young man is shocked to see a century-old skill and asks where it came from. The old man explains that it is a spare skill from Heaven, available for urgent use, and tells him not to let himself be insulted again. The young man hesitates, wondering if this is a magic loan. The old man responds that Heaven is a large platform where new users can borrow a hundred years of skill interest-free for thirty days, with a daily interest rate as low as half a day of skill. At that point, Zhang Yu snorts and turns off the advertisement.