Princess Định An of Great Yan has loved General Yu Zhenwu, the Protector of the Nation, since childhood. However, his father, a loyal and patriotic man, died on the battlefield due to the Emperor's suspicion. Bearing the burden of his family's vengeance and the nation's debt, Yu Zhenwu swore to make the Emperor's daughter suffer once she married into his household. He never wanted to marry her, having been forced into the union by her imperial father. Tormented by his coldness and refusal to acknowledge their engagement, Princess Định An finds herself trapped in a marriage filled with resentment and a desire for revenge. Can she ever escape this bitter fate, or will she be forever bound to a man who despises her and her family?