Takeaway boy Gong Xiaoyao encounters a car accident while delivering food, and opens his eyes and travels to the world of martial arts. There are many martial arts sects here, and the secrets of martial arts are hidden in the light and shadow of swords. The ancient martial arts sects are majestic, but they lack the way to cultivate immortality through the circulation of spiritual energy. At the beginning, he unexpectedly obtains martial arts secrets, and holds the modern wisdom of mortals in his left hand. He uses his experience to solve the puzzles of the rivers and lakes, and uses modern thinking to improve martial arts skills. In the end, he masters the power of immortal martial arts, deals with sect disputes, and grows up in the trials of secret realms. In the end, he is free and easy to control the sword. As a guide, he starts a passionate legend of traveling through the future of cultivating immortals to rewrite the fate of the three realms!