To pay off huge debts after her family goes bankrupt, bankrupt heiress Mo Yang mistakenly takes a part-time job at a club and runs into Li Hechen, the down-and-out waiter she "dismissed" with a check three years ago—who is now the president of the Li Corporation! He traps her by his side as a piano tutor using an exorbitant contract, and she thinks she is a substitute, desperately trying to escape. Yet secretly, he pays off her debts for her, protects her gravely ill grandmother, and helps her revive her piano dream. She thinks someone else lives in his heart. Until the truth is revealed, the person he has been searching bitterly for three years is none other than herself. She is his only prey, and also his only leading lady.