I still stand behind my suggestion, but you're right that it's best not to talk to him about that until this all blows over.

[ Naegi nods. He can't and won't argue with that. But since that's not option, what else to do...? Time to put on his thinking cap. ]

I'm not entirely sure what you can do about it right now, but Celes-san, while you should be, and are, taking responsibility for what was done, I'd say the one ultimately at fault here is the mastermind. If it weren't for the mastermind trying to drive us all into corners, no one would have tried to kill each other. So don't put all the blame on yourself. We...we all bear some responsibility for what happened at Hope's Peak anyway.