There is a kind of person in the world. Her personality has been split into two since the day she was born. One personality is as gentle as jade, while the other is cold-blooded and ruthless. From the beginning, they both appear as the first personality. Only when they are in despair will the second personality be awakened. Once the second personality disappears, the first personality will cease to exist. Of course, the two personalities will merge into one if they meet the person of their destiny.