In Alex's previous life, the world ended in the 10th year since the apocalypse started but in reality, the destruction of the world had long started since the 2nd year, when the first tribulation hit the world. Back then, there were only dozens or so Doomsday Pillar that had been opened with the number who managed to survive against the first tribulation even less than that, making them the beacon of survival for humanity at that time. Even so, when the second tribulation came, none of them could resist the tribulation that led to the destruction of the world.