From a Handyman to the Pinnacle of the Imperial Path, All the Great Emperors Were Stunned

Li Xuan traveled across the Tianwu Continent and became a Yaofeng servant of the Xianyun Sect. There is an observation system at the beginning, and various rewards can be obtained through observation. Observe others making elixirs and obtain - Xuanhuang Reconstruction Pill (ninth level)! Observe others refining weapons and obtain the Nine Heavens Divine Sword (Jidao Emperor Weapon)! Observe other people's practice and obtain the Nine Transformations Golden Body Technique (Super Heaven Level)! The ultimate artifact, the extraordinary holy medicine, the supreme immortal bone, the essence and blood of the great emperor... He won them all. Thousands of years later, great emperors appeared frequently, foreign tribes invaded, and the world was in chaos and strife. When they finally arrived at the end of the Emperor's Immortal Path, they were surprised to find that a black-robed servant was already standing there...