Tao Yao, the only daughter of the Tao family in Jiangnan, disguised herself as a man and sneaked into the capital to take part in the imperial examination in order to avenge her father. She passed all the tests, but on the eve of the palace examination, she was blocked in an alley by a man who claimed to be her "fiancé". Tao Yao tried his best to get rid of this piece of dog-skin plaster, but found that this seemingly dandy man was actually the current Crown Prince. What? The child her father had chosen for her back then was the future emperor? What's even worse is that the prince seemed to have seen through her daughter's identity a long time ago, but he pretended not to know anything and acted with her. When the secrets of identity are revealed layer by layer, a chess game about revenge, conspiracy and love quietly unfolds.