The Shen family prepared two weddings on the same day. The second young lady, Shen Zhiwei, was originally scheduled to marry Qin Mu, whom she had known since childhood, while the eldest young lady, Shen Zhiyi, was matched with Xiao Churan, who kept a low profile and lived a secluded life. Feeling regretful about the marriage, Shen Zhiyi secretly switched the bridal sedan chairs on the wedding day and happily went to the Qin residence. Unexpectedly, Shen Zhiwei married into the Marquis's residence, and the sisters thus swapped their lives. After entering the Marquis's residence, Shen Zhiwei wholeheartedly studied medical skills, practicing medicine to save lives and earning the deep affection and respect of the common people. Xiao Churan usually kept a low profile, and his actions involved many reasons. While living a peaceful and stable life, Shen Zhiwei carefully planned for a divorce in order to seek a free and easy life.