After ten years of hiding, one move can make a chess piece.
Shen Lan'an, the concubine of the Prime Minister's Mansion, was born to a traitorous mother and his sister was convicted for speaking out. He spent every day of his life learning how not to be seen.
But no matter how well you hide it, you can't stop someone from using you as a knife.
A palace banquet, a painting, a moss that only exists in the enemy country. He answered a question correctly, revealing his mother's identity and putting himself on the chessboard. The emperor, the prince, the prince, the envoy of the enemy country - everyone is in this game, and he is just a pawn to be fiddled with.
The night his mother died, he swore: I won't be a chess piece anymore.
From a county magistrate to becoming famous all over the world, he solved strange cases, killed corrupt officials, and disturbed the iron-clad court. Everyone thought he was a sharp knife that prayed for the people's lives.
No one knows that everything he does points in the same direction——
An espionage network that has been dormant for thirty years and occupies half of the court.
And his best friend Jiang Yu is the most unintentional person in this network.
After Jiang Yu died, the relics left to him were a fishing rod, a notebook, and an unfinished sentence.
He followed the clues and chased him to the door of his elder brother's mentor and to the royal study room of the Nine-Fifth Master.
He told the emperor: I have discovered the enemy's spy leader who has been lurking for thirty years.
The emperor said: I know. Apart from him, half of the court was empty. Do you want the truth, or do you want the country?
Shen Lan'an was silent for a long time. Is this the answer he wants with all his strength?
Then he drew his sword.
This sword is not for anyone's country.
For those who will never come back.
Purpose: When you don't know the answer, don't stop chasing the answer.