In the first year of Yuanhe, Zelu Post Road was established.
The postman Shi Sheng found a letter that had been opened and sealed back - the seal of lacquer and fire was half a minute deeper.
No one believed him. The old postman Tietou died trying to block this half of the fire seal, leaving only a few words: Don't send that letter.
Only then did Shi Sheng discover that there was a post route hidden under the official line: post coupons could flow into the black market, military reports could be copied incorrectly, and the sound of horse hooves in express reports could be staged. Someone is delivering false news for the empire, so that Chang'an will receive a wrong world.
He has no martial arts skills, no backing, and only three things: a pair of eyes that can detect the authenticity of seals, a brain with a photographic memory, and an old saying on the post road - the letter is delivered, the person lives.
He does not read the ambition in the letter, only the flaws in the letter.
That night, the underground river swelled.