Ah, this comes from a dream I had when I was taking a nap on June 15, 2019. It's very short and can be written in just a few chapters. (It feels like writing it will be a bit like an outline)
Then I recently watched the X-Men movie and saw the cute pictures of Godzilla. The dream may have been influenced by them, and was also slightly inspired by the Plants vs. Zombies game.
To sum up the dream, it is a story about the villain (not reborn) destroying the world again under the obstruction of three reborn people.