bar scene; trying this again! orz
[Zero is passing through, accustomed to at times crossing by the Blood Shack when out and about. So it's sheer coincidence. Only, rather than not pay much mind to what that may be, he stops in his tracks.
He can tell almost automatically that this man is not Kaname. There's something different, maybe even off. Yuuki aside, he's very acutely aware of what the other's presence is like.
So naturally there's only one possible answer. He does know of Yuuki's parents, and while he obviously never met them, there's no guessing for even a second, considering this Kuran's appearance.
What Zero won't do is use his name.]
The one running it is kind of a pain, but mostly is harmless.