Team Mission: Dispelling the Fog

Although the NPC was found by Egbert Zhang, Rouqingsishui was the captain of this five-member team.
So, Rouqingsishui came to Mussen who was guarding in the government hall and triggered a conversation.
"Respected Guardsman, why are you here alone?"
"Ah!" Mu Sen sighed and said, "I was the captain of a patrol team of the Ice City Guard. More than a week ago, I led a patrol team to the Fog City for a routine inspection. Suddenly, a heavy fog fell here. We were trapped in this foggy city...