Perhaps he's the son of Kong Xiuqiang he'd at least have a reason to be hunting Kilik.
8WAYRUN.com
Marginal
hwang24
I only found out JUST TODAY from a YouTube vid by user: Hayate EIN, that the other brand new character may be the dual weapon wielder's parent. Yeah, I'm THAT much behind on things. In regards to Xiu-Qiang, why would a sibling of X (or his son) hunt down Kilik? (please excuse the ignorance)