In 3946 AD, six hundred years after the revival of spiritual energy, the Great Wall separated the human race and the demon realm. Under the fragile armistice agreement, border wars continued.
The fifteen-year-old boy Luo Beitong was sent to the bitter and cold Shahaiguan to embark on the road of guarding the border in order to catch up with his brother Luo Congxiang. Amid the storm and monsters, the young man seeks to practice in life and death, and uses his flesh and blood to protect the lights of thousands of human families behind him.
