All according to plan

A relentless tide of demon beasts surged towards the human base, their roars echoing across the desolate landscape.

But before they could breach the defenses, a symphony of destruction erupted from the human lines.

Heavy artillery, primed and ready, unleashed its fury.

Dozens of fiery projectiles rained down upon the horde, detonating with earth-shattering force. Shockwaves ripped through the ranks, sending countless demon creatures flying.

Severed limbs and mangled bodies littered the battlefield, their cries of agony drowned out by the deafening roar of the cannons.

The first wave of retaliation had crippled the vanguard of the demon army.

With such density, aiming was unnecessary. They could have fired blindfolded and still inflicted thousands of casualties.

The demon army's advance faltered, but only momentarily.

As long as the Abyssal Core remained unpurified, their losses were inconsequential.