Chapter576-Underestimating John is the Biggest Mistake
As Duke Arsena and Natasha were making their swift return to Storm City via the Dark Realm's teleportation point, the battle between John and the Corruptor had also reached its final stage.
In the recent fight, John had successfully eliminated two demon generals summoned by the Corruptor.
By defeating these two demon generals, John gained all the dark power they possessed.
Utilizing the potent force of the Book of the Astral Realm, John converted this dark power into dark spells and hurled them back at the Corruptor.
The Corruptor had not anticipated being attacked with dark magic in a battle against an adventurer like John.
After all, as a Devil, he should be the one wielding dark spells against his foes.
Moreover, the dark spells unleashed by John were even more powerful than those the Corruptor, as a Devil, could muster, causing the Corruptor's morale to utterly collapse.