[Ishimaru does not seem bothered by Noah's attempt. He doesn't expect adherence to honorifics from others, especially people not from Japan, but he is still intent on using them himself.]

Well, I admit that I have not explored this school comprehensively yet... [The moment his memories became clear, he headed straight for the door!] But I suppose that I have noticed some unusual things here and there!

For starters, the way in which everyone else departed after the graduation ceremony seemed quite unusual! ...And there's also the matter of... well, I keep on feeling as if I am a student of this school, even though I know that this cannot be the case!