A transmigration into a puppet emperor's body sets the stage for an extraordinary journey through the Book of a Hundred Lives. By completing trials across countless existences, our protagonist gains power and knowledge to restore the fallen royal family's honor—a burden that defines his generation. Within the pages of this mystical tome, he lives as the Holy Son of the Ten Thousand Dao Sect, engaging in philosophical combat with the Wonderful Lotus Saintess until her dao heart fractures, leaving her mind entangled in shadowy threads. As a destitute scholar, he rescues a white snake, guiding her through tribulation to become the world's final true dragon—only to have her vow eternal possession of his soul. Ascending to elder of the Dragon Spring Sword Sect, he forges a disciple into history's first sword immortal, yet she transforms that bond into consuming hatred. When imperial authority finally returns to his hands, he believes he has crossed to enlightenment's shore. Then the sky ruptures above the capital. Ten-thousand-zhang clouds coalesce as a colossal white dragon's head descends, its gaze piercing through him. The experiences were meant to remain confined to the book. So why are they manifesting as reality?