After swiftly sealing Kingserp, John immediately launched an attack on Flame Knight.
He was acutely aware that he needed to quickly neutralize Flame Knight, a formidable Devil, to prevent any further complications.
This urgency stemmed from his incomplete victory over Corruptor, who was still lurking not far from the walls of Storm City.
If he failed to defeat Flame Knight promptly, the two Devils might join forces, leading to an even greater threat.
John once again harnessed the power of the Book of the Astral Realm.
With the aid of this mystical tome, he managed to entirely seal off the Duke Arsena's palace, ensuring that the battle would not spill over and cause significant damage to the surrounding area.
This precaution was crucial as members of other Order Factions were present around the Duke Arsena's palace, assisting in clearing the demons brought forth by Flame Knight.
