Immortality sounds great—until your boss says, "One more late delivery and you're reincarnated as a mosquito."Meet the courier of the Three Realms Express. His delivery zone? Heaven, Hell, and the Human Realm. His customers? Immortals, demons, and the occasional ghost who forgot to update their address. His payment? A shot at eternal life.The job seemed simple enough—until his latest package arrived: a sealed letter from a dead god, addressed to no one, leaking spiritual energy, and apparently worth killing for.Now he's running from demons, dodging heavenly bureaucracy, and trying to figure out why this delivery might just end the world.**If you like your xianxia with a side of humor and your immortals with attitude, hop on board. The Immortality Express is making its rounds.**