If Mieru ever does detect the 'unusual origin' of one particular change, it's not going to be a nice source at least. ...Mostly because it involved actually dying-something he has to explain to Yuuya yet, of course.

As it is, he listens to Mieru's explanation. The lancers had left, and from there, there was little else for Mieru to do...ahhh. So it makes sense then. The carnival did seek out those who felt lost somehow... "Mnnn...such is its tendency, I am told..." But if that was her reason for coming here then... "Auh-though, does that mean then that you're not merely here for the carnival itself..?" More specifically- "Did you forge a contract, perhaps?