Xu Ke left evidence behind, actually just as a precaution.
He didn't want to be troubled later by a combined assault from the Huang Family and the Ye Family.
Therefore, taking precautions was the most secure measure.
Of course.
If he had let all three of them go, that would certainly have been the safest approach.
But he couldn't manage it.
Firstly, if he didn't kill these people, they would provide the Ye Family with too much advantageous intelligence.
Even if Yuk Ming had been crippled, he could still describe the details of their fight.
Allowing the Ye Family to understand that his strength far exceeded the Innate Great Perfection and that he possessed a variety of methods, it's possible that they could quickly devise countermeasures tailored to his techniques.
That wouldn't be good.
Xu Ke even began to suspect…
This Yuk Ming, who appeared out of nowhere to cause trouble, likely had Huang Sheng's shadow behind him.