The Great Zhou Emperor, Zhao Heng, is reborn into the perilous situation where the feudal lords have stripped him of power and powerful ministers surround him. Wearing the label of a weak ruler, he secretly advances his plans step by step. First, he uses Wen Boheng's corruption as a blade to cut through the court's iron curtain. Then, he relies on Pei Zhao's loyalty to rebuild the imperial guards, and uses Xie Xuanying's navy to break Xiao Chengji's blockade in the north. Empress Shen Zhaorong carries the guilt of her previous life and struggles between her family and her husband. Every choice she makes rewrites history. Zhao Heng goes from puppet in the inner palace to master of the realm. Every court intrigue and every clash of arms marks the beginning of his vengeance against the old enemies of his past. The feudal lords have yet to realize that the young emperor who always keeps his eyes lowered has already sharpened his butcher's knife.