A wounded scholar named Jeonsa Grace-scorned for being born from a affair of the lord with a commoner and unable to cultivate qi despite his prestigious lineage-is relentlessly hunted by a secret organization after the seemingly useless Scroll of Reminiscence. Cornered and left for dead, he watches in shock as the scroll erupts with ancient power, hurling him back to his fifteen-year-old self. Now, he holds the chance to turn his knowledge into power, rewrite fate, and ascend from forgotten outcast to reigning ruler.