User blog comment:XD1/2016 Battle of the Fantasy Foods/@comment-1359322-20160629111021/@comment-24.113.252.213-20160629214657

Tannin didn't become a Reincarnated Devil because the Dragon Apples were delicious. He did it because there is a race/species of dragons that live off of Dragon Apples, and they don't grow in the Human World anymore.

So he agreed to become Mephisto's "Queen", moved up the ranks of the Rating Games, eventually became an Ultimate-Class Devil, and chose the area in the Underworld where the Dragon Apples grow as his territory.

The Dragon Apples might be delicious, but Tannin did all this because it was necessary for his fellow dragons to survive.