The year is 2218. After the "Idiopathic Apocalypse" that happened in 2118, more than half of the human population was erased. A few years after the IA, unknown creatures started attacking humanity's remaining cities. Humanity almost ceased to exist, but a new light shined in the kingdom of darkness. Humanity discovered "Ability Users", people who had supernatural powers, much like the unknown creatures known as "Mutants". Humanity used its remaining technology to study both Ability Users and Mutants. Soon, they created a gigantic barrier that keeps humanity isolated from the dangers of the wilderness. To this day, humanity is trying to reconquer the world that they lost, but a new rival appears! Another race of sapient creatures, much stronger and more intelligent than any human. What will humanity do?