Lif and Lifthrasir

In Norse mythology, Lif ("life") and Lifthrasir ("eager for life") will be the only two to survive Ragnarok, the end of the world. They will escape the destruction of Ragnarok by hiding in Hodmimir's Forest, the only place that the fire giant Surtur's sword cannot destroy. They will sleep there during the destruction and when they awaken, they will find the earth is green and verdant again. Emerge from their shelter, they will repopulate the world.