Chris happens to be lost in a cave with his best friend when the system arrives and turns Earth into the third largest world in their section of the universe. After an unfortunate run in with an over leveled monster, Chris finds himself alone in a rather unique dungeon.  Given the opportunity to train he does. A few eras later, a low leveled man with completely over powered skills walks out of a collapsing dungeon, and sees a new title on his status. The Last Progenitor