Abandoned by her mother in childhood and raised in a slum, Wen Huan returns to the Wen family twenty years later, only to be met with coldness from her biological mother. Unreconciled, she deliberately approaches Fu Ciyun, the arranged marriage partner of Wen Yiran, and successfully marries into the wealthy family, thinking they only needed each other and would dutifully play the role of the Fu couple. Little does she know that Fu Ciyun has been secretly in love with her for many years; this marriage was his arrangement all along, secretly helping her break free from the shackles of her original family. As they spend time together, Wen Huan falls in love, and the two join hands to uncover the past truths of being switched at birth and her biological father being murdered, bringing her biological mother and stepfather to justice. When old acquaintance Zhuang Jun returns, Fu Ciyun confesses his many years of secret love, Wen Huan lets go of her knot, and they run towards each other in a two-way devotion.