Lin Wanqing, the legitimate daughter of the Prime Minister's Palace, was plotted by her concubine and concubine, and was forced to marry Xiao Jue, the seriously ill Marquis of Jing'an. Everyone thought that she would be treated coldly in the Marquis' Mansion, but they didn't expect that she had the wisdom of fighting in the house, fighting against evil slaves, fighting concubines, and protecting loyal servants, and she managed to gain a firm foothold every step of the way. The cold-faced Marquis Xiao Jue was originally indifferent to marriage, but he was repeatedly moved by Lin Wanqing's tenacity and intelligence. He went from secretly supporting her to blatantly doting on his wife: "Whoever dares to touch my wife, ask me first!" When the conspiracy was revealed, Lin Wanqing realized that the sick and frail Marquis had taken her under his wing: "From the day I married you, you have never been a substitute, you are my Xiao Jue's only wife."