In the north of Planet Nuvoria, in a completely secret underground location, there lay a hidden facility protected by spells and surrounded by imposing trees. This was a base intended to shelter creatures of extraordinary power, a true refuge for beings considered dangerous or rare.
However, something had gone wrong. A security failure allowed the escape of a beast that was detained there, causing deep irritation among those responsible for the place. A furious roar echoed through the area, revealing frustration and concern about the situation.
This occurred exactly one day before Amon and the girls began their journey. The news of the beast's escape spread rapidly, causing great agitation in the northern region. Powerful beings, including those of Beginner Mutant Rank, gathered to deal with the situation.