After Reading My Mind, I Became a Full-Level Green Tea

The legitimate daughter of the Duke of Guo, who was treated as cannon fodder for love in her previous life, is reborn and discovers that she can hear everyone's thoughts. She decides to use the trick and continue to play the role of the stupid and nymphomaniac supporting girl, but she secretly plays tricks on all those who plot against her. But why does the legendary evil and cruel King of Power turn out to be a pure lover?