Board Thread:Questions and Answers/@comment-185.2.190.227-20161204101028/@comment-3014077-20170718130251

I suppose it depends on how you look at space-time as a whole. Yuno replaces Deus in world one and then effectively abandons her position. We have no idea what state that world is left in. Yuki replaces Deus in world two, and we can see that he lets everything devolve into a void. Let's assume that is also what happens to world one, for simplicity's sake. In world three, Deus is still alive and seemingly well at the end of the story.

So...

We have two worlds, possibly entire universes, that are non-existant. There's nobody there to have any feelings. Yes, it's a shame that they are gone, but they aren't suffering or anything. We have one world that is chugging along as usual, with all of the normal pain and suffering that occurs. Deus does seem to be interested in eliminating, or even reducing that. Part of the way things are supposed to work, I suspect. Meanwhile, in world two, Yuki-kami is sitting in his cups, crying over his lost love... for ten THOUSAND years. Until Yuno from world three effectively becomes Yuno from world one (and presumably Yuno-kami) and joins Yuki-kami in world two.

Yuki-kami is happy. Yuno-kami is happy. Yuki-kami and Yuno-kami create a new world two, so now there are people there to live and have lives. Those people are (mostly) happy.

How is that not a happy ending?