As the first Beast from the Exotic Region was about to break through the defense line and enter the city walls, a thick cannon barrel suddenly extended from behind the wall, pressing against its head.
Accompanied by a booming sound, the cannonball shot out with the force of thunder.
The Beast's head burst open, and it flew backward for several meters.
The massive impact kicked up a cloud of dust, and the air was filled with the scent of gunpowder and flesh.
Immediately afterward, tanks and armored vehicles crowded behind the city wall, forming a steel stream with their muzzles uniformly aimed at the breach in the wall.
The cannonballs poured down like rain, repelling the incoming Beasts one by one.
At a higher position nearby, countless soldiers holding firearms frantically shot at the opening, their bullets piercing the air like dense raindrops, knocking down one Beast after another.
However, despite their fierce resistance, more Beasts broke through the walls.
