Revenant travels the animeverse

Revenant has always known as a ruthless mercenary, who showed no mercy to his targets, back when he was a human he got killed in a drive by and his body was found by the government and he was rebuilt as a killing machine and he killed everybody and started hunting criminals, all around the world, people started to fear him that he earned the nickname "Synthetic Nightmare" one night after dealing with a criminal gang he meets truth god of the animeverse and is chosen to travel the animeverse and change the futures, now revenant will put fear in the entire animeverse.