Cultivating Immortality in Another World

"Master, I can't beat you!" Became the mantra of the time traveler Zhong Yi. He was originally a courier, but due to various reasons, he was involved in a conspiracy. By chance, he came to this aura-filled land of immortality, and had no choice but to start practicing martial arts. However, he had a mortal body and mediocre aptitudes, and after practicing several times but with little effect, he began to study some heresies that were despised by immortal cultivators, and became a mudslide in the world of immortality.