The orphan girl Adai and her sister begged for a living. Her sister was adopted by Prince Zhou Ziyin and lived a good life, while Adai starved to death. After being reborn, Adai took her sister's place to enter the mansion, filled with fear yet developing a secret crush. When she encountered her mentally impaired sister, she was shocked to learn that Zhou Ziyin had known about the substitution all along, and that she was merely a pawn he had carefully selected!
