[Galvantula]

It wasn't the happiest ending but it's still not a total downer.

Kota: Saved the earth by becoming the Man of The Beginning; gaining the power of a god with the hair to match. But he had to give up his humanity and had to leave earth in order to give both the humans and Inves the peace they so needed.

And who's to say when DJ Sagura will start another battle for a golden fruit?

Kaito: He lost everything in his drive against Yggdrasill and while it's gone for good Baron threw everything away in order to see it come to fruition. However in death he found the peace that was so far away in life.

Micchy: He regained his sanity and friends after being, well insane but even though he's on the side of the angels again he'll have to live with what he did for the rest of his life.

Takatora: He nearly died saving earth and he made choices he'll have to bear the rest of his life. But in the end he gained a somewhat happy ending and perhaps he'll be able to see a Zawame that thrives without the people hating him for it.

All in all a bittersweet ending. Moreso sweet than bitter but again not overly happy.