Wu Yuan carries the soul of another world. Master Cheng Dao said, "You are not from this world." He was dragged out of the realm of starvation and into the current of this world. To fully appreciate the mysteries of heaven and earth, one must also experience the world of mortals. Then the immortal bowed his head and stepped into the mortal world.
The setting is that there is no unified practice system and practice level, and each sect is basically an independent practice system. When the protagonist comes down the mountain, he is already considered a real immortal and basically invincible. The plot unfolds in the second chapter. If you feel bored in the first chapter, you can jump to it.