Cold-Faced Swift Blade King, without a doubt, is a nickname.
This nickname needs to be explained in three parts.
Cold-Faced, because this middle-aged man rarely smiles at anyone other than Wei Jianhua, no matter how powerful the other person is, he always keeps a cold face.
In Ye Kuto's words, this clearly belongs to the typical Sima face category.
The "Swift Blade" part is because the middle-aged man is skilled with knives.
As for the "King" part, it requires separate explanation. It doesn't mean his surname is King, but rather king among knife practitioners.
"You are... the Cold-Faced Swift Blade King?" Sitting on the soft, comfortable sofa, Pei Dengke couldn't help but ask.
The middle-aged man grinned sheepishly, "It's just a flattering nickname others have given me. Young Master Pei can call me Old Knife."
"..." Pei Dengke.
Suddenly, the world seemed so unfamiliar.
