Their head jolts back up. "Your brother?" they ask incredulously.

Okay, that's an overreaction, and they bury their face in their hands to cough a bit. They're not as sick as they used to be, but pink blood hacking still happens and it's still gross. Not something they want to explain.

Once that calms down, they force their voice back to normal. "We, um, we're friends. We met after I fell." Kris doesn't look like a Chara. Aside from the hair. There are lots of weird worlds out there, though, so... "Did you...ever go by 'Chara'? Or, um, want to?"