Because the heroine Jing Yan has a very similar appearance to Yu Wanci, the daughter of a missing wealthy family (actually they are separated twins), she is forced to sign a substitute contract by He Xingshen, the powerful man in the Beijing circle, and she steps from the bottom of the fringe into a cage-like wealthy family. She went from being passive and forbearing, imitating to survive, to awakening to explore secrets, and outsmarting the heroes. Finally, she revealed the truth about her life experience, broke away from the shackles of the substitute, took control of her own destiny and that of He Xingshen, and completed her counterattack from "shadow substitute" to "Queen of Light".
