Lu Sen's words were clearly too polite.
The reason this man, Xi Muchen, knew about him was that he had joined the Arthur Family immediately after deserting the army and had been opposing the Han Family on their behalf for over twenty years.
It wasn't until fifteen years ago that he broke away from the Arthur Family and his whereabouts became unknown.
"How many of the Han Family have suffered at your hands?" Xi Muchen narrowed his eyes and sneered, "How could I possibly not recognize Captain Lu Sen, but I am very curious, who is so influential to have hired you, Captain Lu Sen, to kill a mere butler of the Xi Family?"
"I have long since left the Xi Family," Lu Sen said. "It was just to make a living."
"Heh," Xi Muchen sneered. "Take him away. When Captain Lu Sen feels like telling the truth, bring him to see me again."
"Quite the tone you have there," Lu Sen sneered back, already assuming a combat-ready stance.