One thousand years ago, Hero of Justice Nazesh and the Dark Lord Anos made a peace pact to stop the war that lasted for about a million years between Humans and Dark souls. Anos the Demon Lord returned to the underworld with his army as it was written in the pact. Demon Lord Anos in his dying moments said that a hero will return to save humanity and Peace from the Dark Lord who will start the next war, as he won't be living for ever. Now in the present, As Shinzo was dying an angel descended to ask him of his dying wish.
Angel Azrael: " Why are you still struggling? What is your greatest regret?"
As he struggled in pain he replied: "I want to live, I couldn't do anything to enjoy in this world *sob sob*, Please let me live so I can ve happy in this world.
Azrael: "So, would you accept a task in exchange for this wish?"
Shinzo: "Yes..... Yes, I will accept any task to live."
Azrael: "So be it."
What type of reincarnation and task would it be? Wait for the next Chapter.