I have mixed feelings about this.
The ending itself wasn't that bad, in fact it was somewhat fitting. The problem is, it felt too rushed. Ever since Rou the rest of the cast suddenly disappeared, as if they were not important at all. There were too many loose ends thus giving an overall feeling of dissatisfaction.
OriginGenesis said:
This is intolerable. There are too many questions unanswered.
First of all, when the hell did 100 years pass?
Second of all, is the Domeki that Watanuki talking to Shizuka Domeki or his son?
The Domeki talks as if he knows Yuuko and Watanuki very well, almost as if he is Shizuka Domeki.
Third of all, what's with the damn egg?
1. Apparently since the last chapter.
2. The one Watanuki is talking to is Doumeki's great grandchild. I guess he talks as if he knows Watanuki very well because, just as his ancestors, he's been visiting/living with Watanuki all his life.
3. No idea, but supposedly Doumeki wished for the egg to erase Watanuki's memories about Yuuko, and said their descendants to use it when they see it right (so he could be truly free from his cage).