A War Hero's Story Reaper's friend

The Great War of Worlds, also known as the war that would serve as war that would end all wars.
With the fate of the very world itself on the precipice of a precarious balance.
It was a great thing for the inhabitants of Lacia that they had thirteen heroes who would rise up as the worlds champions to push back the deadly invaders.
Fighting against the Burning Nines, the Frozen Scourges, the Diseased Legion, the Automaton Corps, the
The thirteen heroes fought them all off all at the same time and killed their commanders one by grueling one.
All until the final battle which had the world hanging on the balance.
Thankfully the heroes won and the age long war ended with that.
The problem was the aftermath of the battle.
What would the heroes with unparalleled strength do now?