Book of Patching up the Sky

It has been rumored for a long time in the five states and twelve counties that whoever finds the Book of Mending the Sky can discover the secret of immortality and become the strongest person in this continent. In order to obtain the Sky-Mending Book, strong men from all walks of life have been fighting for thousands of years, causing the world's sky to be shattered and all living beings homeless. For the sake of their homeland and their relatives and friends, they put aside their past grievances and united to search for the long-lost Book of Mending the Sky. In the process of searching for the Book of Mending the Sky, just like when they once fought for the Book of Mending the Sky, they gradually lost their way and forgot why they were united. Perhaps the Five Prefectures and Twelve Counties do not have the Book of Heaven-Mending, but they just need a supreme code that can save the world.