[Rin is pissed, and still not feeling great after being poisoned by Nitori. Whether it's still physical or only psychosomatic at this point is anybody's guess, but while they're waiting to do something useful... he's just going to be his usual, wonderful self, squared.]

You manage to get things from all sorts of worlds, but you can't send anyone back.

Lucky for you that you're making a nice profit off the people trapped here.