Yuusha wa Kosokuihan ni Narimasu ka?

A hero named August was killed by the Demon King while trying to save the world. A young child in modern Japan begins to remember his past life as August. As strange events hint at the return of the Demon King, he decides to train again as a hero. He forms a "hero club" at his high school in an attempt to reunite with his former allies who may have been reborn. The story follows his efforts in a comedic, everyday setting.