Has that kind of thing happened to you before, Kaiko-san?

[ she sounds so concerned, like the idea of Kaiko being made to feel even slightly out of place is enough to break her heart. they've been talking for all of five minutes and yet Mu has very clearly decided they're the best of friends. ]

That really does sound awful. But I promise, you wouldn't ever have to worry about anything like that in Mobius! I'd make sure of it myself.