After Kenshin was betrayed and killed by his people, for a crime he didn't commit. He was gifted with the power of the devil in exchange for one thing, entertainment.
Kenshin was later reincarnated as a child named Kakashi but he couldn't remember anything from his past life.
Trying to become a hero, Kakashi would have to choose between his reincarnated self who wants to be a hero or his original self who wants to destroy humanity.
