Thousands of years ago, in order to quell the disasters caused by monsters, humans used a barrier to divide the original world into two, and the people living in the outer world fought against the monsters from the outside.
The only six insiders in the other world lead the elite to fight against the fallen demons in the other world. Facing the coming doomsday, can the people in the other world who have lived in comfort change the gears of destiny?
Concept: A stagnant life has no value