Transported into the body of Lin Mo, the disgraced Sixth Prince, he’s barely freed from prison when forced to inherit a collapsing empire—within seven days, the Northern Mang army will invade; his Emperor-father, Crown Prince, and all court officials have fled, leaving behind only an imperial edict naming him heir. Trapped in utter despair, he activates the “Clan Scroll System”: expand his family tree, and earn rewards like elite Imperial Guardsmen and fortified city walls.