This guy was lucky. He managed to catch a ride on one of the rocks that was flying up out of the ground
when the monsters raided the world. One day, high up in the sky, that guy accidentally tripped into a
nearly-endless hole while on his way to his favorite staring spot. As he fell, he had noticed another rock with two Escape Pods. But he thought "How could I get up there?" Well that, you are going to have to find out yourself.