Kai has never really been a music person --- that's Usagi's territory. That doesn't mean he doesn't like it, doesn't recognize when something is good, he just ... doesn't really follow music in that way. Fever's bandmates seem to have taken that as a personal gripe, he's pretty sure, considering how they always crowd the witch whenever he comes around.
Usually it doesn't bother him. Is even kind of nice ( he likes attention, sue him! ) He's got business this time though, so Kassius doesn't get the same energy he'd usually give her. Takes a little bit to get past them but he does, promising to talk later instead of now.
Fever's less strung up when Kai finally makes his way to his room at the back of the bus. He closes the door behind him and leans back against it, grins and lets out a little huff of laughter.
❝ What, them, bother me? Never. ❞ There's sarcasm in his tone, sure, but it's warm.
He pauses then, though, eyes darting off to the side. Because he doesn't really know how to broach this. It's, y'know, delicate.
Eyes still averted, Kai sighs. ❝ So, I was looking into ... things like you asked. ❞ It's pretty obvious it's not good news.