Why was Dragon Horn Sky-Subduing City in trouble?
Because Ye Han had already seen through the flaws in Dragon Horn Sky-Subduing City's defensive restrictions and ordered the Spirit Cannons to bombard its Kan and Lin positions relentlessly!
After all, the formation underlying Dragon Horn Sky-Subduing City's defensive restrictions was a defensive Restriction Formation built on the human race's Nine-Character Mantra.
In the eyes of many Formation Masters, the Nine-Character Mantra was long outdated. Yet its nine character positions remained in use, since they defined the positions and directions so clearly...
Sure enough!
As the Spirit Cannons aboard the Crescent Moon Flying Boat relentlessly bombarded the Kan and Lin positions of Dragon Horn Sky-Subduing City's Restrictive Barrier...
Boom, boom, boom!! Ripples shuddered across the Light Barrier in an unbroken chain, and the city's defensive Light Barrier kept splintering, releasing bursts of runes and spell power.
The Demon Kings stationed at the formation's focal points, continuously releasing demon aura and spell power to replenish it, immediately felt their reserves draining at a tremendous rate. They were truly beginning to struggle and could not help exchanging voice transmissions...
"This is bad! Our demon aura and spell power are draining so quickly. If the Azure Profound Sect breaks through the restrictions in a moment, we'll be in trouble!"
"Exactly! The Dragon Horn Demon Emperor has only a half-baked understanding of the way of formation. Without continuous replenishment, how can we Demon Kings and Demon Beasts hold out by supplying it ourselves?"
"How can the damned Azure Profound Sect's Spirit Cannons be so powerful? And they can keep firing without a pause. We definitely won't hold out at this rate."
"I've already sensed an immensely powerful presence aboard the Azure Profound Sect's Flying Boat. It must be the legendary Ye Han...!"
"What can we do,