Jane Ames, a top commercial lawyer, accidentally uncovers the truth of her swapped birth identity and is forced to leave the An family. To meet each other's needs, she enters into a contract marriage with Zane Songer, CEO of Song Group, who was originally arranged for a Marriage Alliance with Charlotte before the match fell through. The two are initially distant and formal with each other, but gradually develop romantic feelings as they spend time together, heal and fall for one another, let go of the constraints of the agreement, and finally stay together hand in hand, achieving success in both career and love.
