Lin Yu was originally an ordinary company employee, living an unremarkable life from nine to five every day. However, an accident changed the trajectory of his life. During an outdoor expansion activity organized by the company, Lin Yu got separated from his team and strayed into a mysterious valley. The valley was filled with strange mist. While Lin Yu was groping forward, he suddenly slipped and fell into a bottomless cave.
At the bottom of the cave, Lin Yu found an ancient book that exuded a faint light and a jade pendant engraved with mysterious runes. The moment he touched the ancient book, a powerful message flooded into his mind. It turned out that this was a secret book for practicing martial arts, and the jade pendant was a treasure that could guide him to absorb the spiritual energy of heaven and earth. Lin Yu relied on perseverance to start practicing. After spending a difficult month in the cave, he finally mastered the technique and his strength was greatly improved.
After Lin Yu returned to the city, he found that the world had quietly changed. It turns out that 50 years have passed since his disappearance. Lin Yu also embarked on a new journey.