Mu Xiruo has had a marriage agreement with the young master of the Lu family since childhood, but her half-sister from a different mother unexpectedly tries to take her place! A mysterious blind man suddenly appears and repeatedly seeks cooperation with Mu Xiruo. It turns out that he is the younger uncle of Mu Xiruo’s fiancé! Mu Xiruo finds herself caught between forbidden love and the dilemma of preserving the marriage agreement…