As the humblest slave swordsman of Prince Jin Hao of the Jing Kingdom, Mo Yang accidentally obtained an ancient jade engraved with a mountain and sea map and the Golden Crow emblem during a border sacrificial ceremony, and awakened the "Three-Legged Golden Crow" bloodline inherited from ancient times in his body. The ancient remnant (feminine image) in the artifact spirit of "The Classic of Mountains and Seas" guides him, revealing that his true identity is inextricably linked to the fairy world. However, this bloodline also attracted the prince to covet and pursue the artifact. While escaping, Mo Yang encountered the entrance to the underworld suppressed by the Naihe Bridge at the border. Through the trial in the underworld, he mastered the way of death and rebirth, and made great progress in his cultivation. As he grows up, he not only has to fight against the prince and other cultivating forces, but also gradually reveals the shocking secrets behind his bloodline involving rebellion in the fairy world, and also has to deal with powerful conspiracies from the fairy world and the underworld.