In order to avenge her sister, the heroine Ye Wanqing took on the identity of her twin sister Ye Zhange, who died in the battlefield. He begged to marry Zhao Lingyun, the sickly and beautiful young master of his enemy's family, at the cost of injuring the enemy a thousand and losing eight hundred to himself. Unexpectedly, the sickly and beautiful young master was also an impostor of the Zhao family, and the sickly and charming secret guard was the real one. Chu Nanchen, who had been trained by the Zhao family since childhood, married into the general's mansion, but he did not want to give up his sincerity in it.