A letter accusing the prince of keeping a prostitute stirred up sentiments both inside and outside the court, and also revealed clues to an old case twenty years ago.
The rumored guest in a cage in Shengjing played tricks on villains, stirring up current and old cases;
Bai Erlangjun, who has a dual identity, was forced into the game, but found that the truth was far more shocking than anyone thought.
The two of them are so different and seem to be going at opposite ends of the spectrum, yet they are so similar and both are desperate.
When the old case came to light and the place finally saw the light of day, people realized that this was just a corner on the chessboard of the court, a room in the cage of heaven and earth.
Everyone is peeping out among blood, kindness, desire and power. Can he and she break free from the shackles, or break away from the siege of a pair of hands behind the scenes?
Intention: The world is a cage, and the sparrows have nowhere to escape