After her nouveau riche stepfather murdered her family and seized their fortune, Chu Minghui narrowly escaped death and changed her identity to survive. To enact her revenge, she entered into a contract dating agreement with the Young Marshal to help him assassinate his younger brother, Gu Tongpei. However, a forbidden love ignited between her and Gu Tongpei. Just as Chu achieved her revenge, she was shattered to discover the man she loved was her enemy. After resolving a series of misunderstandings, the two joined forces to subdue the true culprit—the Young Marshal.