Born in Troubled Times and Eventually Became an Immortal

Han Xiaochuan was a bandit. One day, he and a little monster came to a canyon to wait for work and grab something. In the far distance, there is an army. They load a mysterious "cargo" onto a carriage. The wheels rolled forward slowly. Behind, there was smoke and dust flying, and a long trail gradually became farther and farther away in the direction of the carriage. In this way, this heavily armed escort, carrying this mysterious "cargo", slowly drove towards the canyon where Han Xiaochuan was...