In order to save Gu Zhaoheng, Xiao Xuhuai spent all his life in exchange for her life, but he watched her die in a bloody sea of coup. He went crazy and self-destructed. He used his life as a sacrifice to change his life against heaven and returned to three years ago. This time, he no longer held back, and even slaughtered the whole court and stained the dragon's chair with blood, just to protect her. But Gu Zhaoheng is no longer the docile noble girl she used to be. She hides secrets in her heart and takes care of everything, as if she knew he would come back. When power and affection intertwine, he is completely crazy and she is frighteningly cold. Who is the one truly imprisoned by fate?