prologue

1,000 years ago creatures called Akumas came to earth, they ate humans, destroyed city's and villages, and wiped out most of our population.
That's until people started gaining special abilities. Some used them for villainous acts, while most of them, used it for saving humanity.

These people were called Akuma Slayers

10 years it took to defeat all the Akumas, and now 990 years later, the Akumas returned.