In 2040,
Intelligent monsters known as "Necro", once tried to take over the human world, However failed, because of a mysterious man, who suddenly appeared in the middle of the war, he seemed to have supernatural powers, and called himself "Dasher", he annihilated the Necros boss called Cide, the monsters ran away, they knew that they couldn't defeat him now.
This is a story about a boy named Rei Yamashita, born in 2042, August 4th and how he gets in a special camp by Dasher-Z company with 20 other students, which learn about Dashing gears, About necros, and train.
Rimuru had been called to attend Walpurgis, by non-other than Guy himself. Realizing the dire situation, Rimuru makes haste to attend the banquet. But before he could properly arrive, in the middle of the transfer, an unknown mysterious power had sent Rimuru back in time. Back to his first appearance as a slime!
This fanfiction is based on the Light Novel!
Note: There is a re-write currently ongoing as I've decided to stop uploading chapters for this book. I do hope you check it out sometime.