After swapping souls with my husband, I became the most beloved wife.

Luo Ningning, a salaryman, is paid to marry Feng Yichen, a business tycoon suffering from PTSD. On their wedding night, she offends him, and a bolt of lightning causes their souls to swap. Forced to live together as a fake couple, Luo Ningning secretly sets traps during their agreement on rules. The two help each other deal with the chaos within the Feng family, leading to many humorous situations and gradually developing feelings for each other. Luo Ningning learns of Feng Yichen's mental illness and helps him heal his trauma and ease tensions within the Feng family. Their attempt to return their souls to their original bodies results in a series of blunders. Later, Luo Ningning's biological father returns, her substitute marriage is exposed, and the Feng family is framed by rivals. The two unexpectedly switch back to their original souls. Luo Ningning wants a divorce to escape, but is accepted by the entire Feng family, becoming their darling. Together, they resolve crises and find true love.