Yes, exactly re: Yuuko's act. She did have limits to her powers, but she stretched them pretty far for all our heroes, and I would definitely agree that it was at least partly guilt, since it was out of love (or some kind of attachment) for her that FWR twisted everything out of shape.

That's a good point about Himawari. I still find it a bit weird to contemplate Jr. being best buddies with Doumeki, though.