Lu Yun, a boy who was born more mature than his peers, lost his parents when he was thirteen years old, and was taken in by a white-haired "master" who claimed to be eighty-eight years old. The master taught him a martial arts called "Huanyu Jiazi Gong" and claimed that when he mastered this martial arts, he would be able to rejuvenate his youth and become invincible in the world. The simple Lu Yun believed deeply and regarded his master as his benefactor. He practiced hard for ten years and pushed his internal strength to a level of one thousand years. However, when he finally achieved great success, he was horrified to find that he had not become younger, but had aged instantly and transformed into a sixty-year-old man! What made him collapse even more was that he found the preface left by his master, which clearly stated: This skill must be practiced with a physique that "even though you are young, your appearance looks older." When you reach great success, your body will be in sync with your age. Only then did Lu Yun realize that he had been deceived by his master from beginning to end. He was angry and desperate, but had to face reality. At the same time, the martial arts skills left behind by his master, the two servants whose identities remain a mystery, the mysterious death of his parents, and the sudden undercurrent that split the martial arts world into two major forces, the "Zhengtianhui" and the "Demon Territory", all pushed him step by step into a dangerous world that he did not want to enter.
