It's hardly no reason, [ haku corrects, still a little... business-like in his approach but meticulous and thorough because of it. he just doesn't really know how to relate to the interests of the people he cares for, so it doesn't quite come naturally. he's capable of warmth and fondness organically, with people like naruto, people like yuji. he follows people who give him a reason to exist with single-minded dedication, like zabuza, like kakashi.

but right now cain is existing in the strange niche of 'interest of my raisons d'etre' which, in haku's previous life, was composed solely of business arrangements. so cain will have to forgive the harried executive assistant vibes haku is giving off right now. ]

Kakashi-san is fond of you. You bring him joy, not to mention... considerable pleasure. [ haku arches his eyebrow pointedly at that, then proceeds right along. ]

It would be preferable if you called ahead so I can make sure there's enough dinner to feed you and make myself scarce as necessary, but I would also never dream of telling any of Kakashi-san's friends they can't come by whenever they please. He certainly wouldn't thank me for it.