An intelligent high school student goes on a secret crusade to eliminate criminals from the world after discovering a notebook capable of killing anyone whose name is written into it.
The story of the Seven Deadly Sins, a group of warriors who were wrongly accused of a crime they didn't commit and went on a quest to vindicate themselves.
After being killed on his first date, idiotic and perverted Issei Hyodo is resurrected as a demon by Rias Gremory only to be recruited into her club of high-class devils.