Their first clash!  

"I can promise you one thing"

Gu Qing Shan said.

The Heavenly Emperor silently looked at him, waiting for what he wanted to say.

Gu Qing Shan continued: "During this crucial period of exploration of the great tomb, Star Gazer city is willing to live in peace with the Heavenly Palace------ we can agree to a ceasefire to avoid benefiting the Sequences hiding in the shadows"

"Is that it?" the Heavenly Emperor asked.

Gu Qing Shan chuckled and replied: "What else do you want? I've already asked Star Gazer city for a confirmation, if you are the City Lord of the Heavenly Palace, it's impossible for you to also become the City Lord of Star Gazer city"

"What if I can?" the Heavenly Emperor said.

Gu Qing Shan paused briefly and exclaimed: "That's impossible!"

My guess was correct.

-------the Heavenly Emperor really is hiding inside Star Gazer city.