"This is the challenge letter written by my young master. Your ranking shouldn't be higher than my young master's. Tomorrow morning, on the Immortal-slaying Platform, my master wants to fight you. If you don't come, people will take it as you surrender. And your ranking will fall by one level."

Early in the morning, a guard who looked like an attendant came to Li Mu's courtyard. He knocked on the door and sent in a gilded challenge letter.

Li Mu was ...