Three thousand years ago, Mo Bing was betrayed, his heart was cut out, and he became half human and half doll. In order to become a normal human being, Mo Bing searched for thousands of years and found the "Red Flame Heart", but its owner, Mu Yuanqi, also had three identities. Mo Bing is forced to marry into the house, and in a series of temptations and pulls, a sweet and sadistic drama with purpose and conspiracy slowly unfolds.