Please check out the first portion of the book I'm starting, Seven Deadly Sins: Ben.
No, it is not based on the anime, show, or any kind of books. It's slightly inspired by Seven Deadly Sins the anime as in the people will have powers related to their sin and are the heroes in the story, however, they haven't committed a sin to get their powers and were chosen more at random though they (very) slightly fit their powers, they're more like opposites from their sin with a few exceptions.