Killers belonged to the night. In the daytime, they did what normal people did and interacted with others normally. But only in the night did they really feel free. They owned the night.
Gu Shenwei and Maid Lotus moved very fast in the night. They were like two fish swimming swiftly and freely in the ocean of the city, able to go almost anywhere they wished, and steering away from any formidable dangers. The biggest danger for them was the Khan's main tent.
Some smaller tents surrounded the main tent, and lords and nobles of different levels lived in them. Some were well armed, while others were not. Gu Shenwei decided to take down one of those tents that night.
He had a bold hypothesis that the nobles of Norland would kill the Khan and then frame him for the killing. He needed evidence to prove it, so he decided to start at the weakest point.
The weakest link was Fu Yuan.