On the eve of her wedding, heiress Su Wan is pushed off a rooftop by her stepsister. Her soul is reborn as a ragdoll cat, and she is adopted by business magnate Gu Chengze. As she searches for the truth behind her death, she discovers that the mysterious man who rescued her in the rain three years ago was none other than Gu Chengze. A sealed organ-donation agreement in his study points to an even deeper bond between them. When moonlight grants her the ability to take human form for brief periods, misunderstandings and a painful romance born of their dual identities become entangled with a battle for control of the Gu conglomerate. As they unravel a series of conspiracies, they uncover the cycle of cause and effect linking the Su and Gu families across thirty years, and achieve mutual redemption through a bond that lets their souls live as one.
