I'm Here to End This Era

Do you believe that this was you in your previous life? If you have the memory of a previous life, are you the same person you were in the previous life? Fifty thousand years ago, the first saint who led the rise of the human race disappeared mysteriously after forcing all races to sign a peace contract. Ten thousand years ago, an alien object fell into this world. As a result, the continent was shattered, the world was incomplete, and all races died. After that, aliens invaded, the second saint established a barrier between heaven and earth, rewritten the rules of the world, and then the gods of the world ushered in the first dusk. The history described by the third saint thousands of years ago is no longer true... And this world is the last era in the prophecy. Even if a person inherits the previous life, but then disappears, can he still take on the burden of the world...