Li Youran, the youngest son of Emperor Taizong, fell into a deep sleep in the twenty-third year of Zhenguan, carrying his father’s instruction to live “carefreely” with him. More than two centuries later, he awakens amid the chaos of the late Tang. The realm lies in ruins, warlords carve up the land, Huang Chao’s rebellion looms, and the great upheaval of the Five Dynasties and Ten Kingdoms is just around the corner. He has no System and no foreknowledge, only a heart that has seen what a golden age can be. Rising from among the refugees, he walks along the edge of a blade, gathers talent, and lays the foundations of a new order. With a sliver of secret knowledge that Yuan Tiangang and Li Chunfeng gave their lives to preserve, he alone turns back the collapsing heavens and rebuilds the realm. This is not one man’s journey, but the salvation of an age.