The First Person to Behead the Immortal Platform, the Great Sage Owes Me a Favor

I, Yao Yuan, a time traveler with a "merit system", was sentenced to death by gods and Buddhas all over the sky. Crime? Five hundred years ago, my ancestor saved a person who should not have been saved. They all thought I was just an ant who could be sacrificed at will. They miscalculated one thing. That period of history that they erased happened to be the only favor left in the heart of a bastard.