Beyond the Wall

In 10756 of the old era, a planet made of pure time energy collided with the blue star. The civilization on Blue Star was destroyed because the Merlin particles produced by the impact interfered with the operation of complex machinery. So far, the cities have become isolated islands, and Blue Star has fallen into the Dark Age. Animals allergic to Merlin particles turned into monsters, while humans allergic to them strengthened their bodies and produced energy called inner breath. With the invention of the Merlin Clearer, human civilization began to revive, factories began to operate, and city walls began to be built. Humanity has entered a new era.