While the humans were preparing to form an alliance with the elves against the demons, the demons on the other hand were also pushing their plans forward at a frightening pace.
Inside a small hidden world, countless demons followed their daily training routines without rest. The environment of this hidden world was perfectly suited for them. The air was thick with demonic energy, dense enough to feel heavy with every breath, and the sky above was a dark, blood red expanse that never changed, casting an eternal crimson and dark hue over the land. Everything within this world existed to nurture their kind.
At the center of this small world stood a massive city, surrounded by numerous high ranking demons who guarded it day and night. Within the city rose a towering black castle, its silhouette visible from an immense distance, dominating the skyline like a symbol of absolute authority.
