She is the only survivor in Yaowang Valley. She lost all her memory and was forced to marry as a substitute, becoming the "living medicine guide" for her enemies. She draws her heart's blood with her own hands every day to keep him alive, but she can't help but fall in love with this cruel man. It wasn't until the moment her memory came back to life that she was shocked to realize that her master's family was massacred seven years ago, and she was actually the accomplice who handed the poison! Love and hate tore her apart. This time, she would use her body to poison him and let him taste the heart-gnawing pain she had suffered. This is not a happy occasion, but a carefully planned revenge feast.