In fact, it is not a mission at all, but a plot, used to enrich the progress of the entire game. Even if you go directly to the Northland in Yangzhou, it will not have much impact.
The first is the red date task in the tavern. When you leave the tavern, ask the vegetable vendor "Are you going to the city before dawn?" (I don't remember exactly how to ask, what does this mean)? You can know that Meng Tian is in the sky prison (of course) Don't ask and talk directly to the soldiers guarding Tianlao (the effect will be the same), and then talk to the guard. If Kong Gang is in the team, choose "Kong Gang: Do you know the background of this guy next to me?" Enter as a fake emissary and go to the second floor. There will be a boss asking you for a token. You will not be able to enter if you choose any other dialogue other than continuing to pretend to be the Royal Envoy, and may trigger a battle. Of course, this is a good place to hang up in the early stage. Generally, you can go from level 1 to level 14 plus a lot of junk equipment in one afternoon. Finally, I walked to the lower left corner of the Tianlao and saw Meng Tian triggering the plot animation. It was over.
Just give me face by hand.