Immortal Castle: Human Race Watcher

Introduction to "Fortune of Immortality" On a bloody night when the family was shattered and everyone was dead, a pair of mysterious dragon jades opened the inheritance of the Three Emperors. Li Tianyu, a sixteen-year-old martial arts boy, and Li Hongling, a twelve-year-old medical prodigy, were forced to step into the dark world that had been hidden for thousands of years. The shadow of the resurrection of the ancient demon shrouds the city, the forbidden spells of the Netherworld Palace plunder lives, and the ancient bronze castle suspended in the void hides the secret of immortality. Enemies are chess pieces, and relatives are phantoms. They struggle to move forward amid betrayal and protection. Using martial arts to prove Taoism and destroy evil spirits, and using medicine to connect gods to save the common people, the brother and sister carry the dragon jade into secret realms and fight demons, exposing the lies of their family's fate and confronting human nature's greed for eternal life. When the gate of the castle opens and the truth of the world emerges, they will eventually shoulder the ultimate mission of protecting the world as mortals.