Three days later, Krune, Flita, and Wrister geared up for a battle early in the morning. They each donned armor made from the bones of Tier 4 Demons, armed to the teeth. Upon wearing the armor, Krune sighed, laughing as he shook his head, "I guess I was worried over nothing."

After all, the armor completely covered his body. Only the part of his eyes was visible to the onlookers. Well, that was also blocked by a layer of membrane that acted like glass. So, irrespective of his identity, no one would be able to recognize him under this armor.

It seemed only those powerhouses at Tier 5 didn't wear armor. It was because armor was unnecessary to them. Not because they were strong, but because the Red Demons that arrived at the battlefield were usually young and way weaker than them.

So, that was the reason they never wore armor.

Before they departed, Krune looked at Hazak and said, "We'll be back soon. Protect this place until then."

"Rest assured, Sir Pestlor. Even if the powerhouses of this city attack this place at once, I'll still be able to defend this place," Hazak said while patting its chest.

Smiling, Krune waved his hand, leaving the mansion. The trio of him, Flita, and Wrister exited the mansion and arrived at an underground transportation network where they hailed a private bus meant exclusively for soldiers like them.

In the city, there were two forces that fought on the battlefield. The first was the soldiers, those that were formed by most of the populace. They acted as units consisting of their respective tiers, armed to fight together and plow through the battlefield.

They formed the majority of the forces on the battlefield. Surprisingly, soldiers had guaranteed spoils of war. After all, there existed a strict team of observers that acted from behind enemy lines, marking down the kills of every soldier.

Then, there were the transporters that collected the demon corpses, bringing them into the city to be processed. As all records were maintained fairly, there was no fear of malpractice or the rewards of someone's efforts going unnoticed or stashed away.

After all, there were numerous teams of observers working about on the battlefield, both openly and covertly. This way, numerous records were kept, preventing any single party from tampering with the records.

After all, even if a single record was tampered with, rewards were only given out after all the records were cross-checked. So, when there was a sign of tampering, the respective observer group would be punished.

Over time, it created an information system where no one dared to tamper with the results in fear that they would be reported, causing all their hard work to go down the drain. That was why the soldiers were able to calmly fight on the battlefield with the assurance that their efforts wouldn't ever be wasted.

It was then followed by the mercenaries. They formed about a small fraction of the battlefield, usually working around the borders. Wealthy families that developed their exclusive forces used this mercenary service.

The city would auction off large pieces of the battlefield in an auction. Then, the families that bought off pieces of land on the battlefield would be able to use it privately for a select period of time. This way, they'll be able to reap benefits from slaying all the demons that pass through the respective area.

There were both big and small areas that were auctioned off. Based on the appearing horde of demons, the value for every place would vary every day. So, the auction house contesting for these pieces of land was heavily eyed by every powerful family of the city.

On top of that, since it was a daily occurrence, everything was conducted online, making the process quick. Among the lands under the hands of the mercenaries, most were auctioned off. Then again, some were left as free grounds.

It was where the commoners trying to test their luck would head towards. Those that made a name for themselves in these public grounds would be eyes by the powerful families to be recruited into.

At present, Wrister had indeed bought a private piece of land for themselves. It was only valid for a day, but the area was big enough for more than 100 warriors to fight. Plus, it was a place frequented by Tier 3 Demons constantly. So, it was a pretty expensive piece of land.

Wrister had expended a significant sum of his money to buy this piece of land. However, he wasn't concerned about the cost. After all, he and his granddaughter were already at the peak of Tier 4. Any sum of money could easily be earned by them.

After all, with their strengths, they only had to fear the Red Demons. After journeying for three hours, their bus had finally reached a massive building, the biggest and largest of the city. It was where all the warriors from the city congregated to head into the battlefield.

And, since the entire source of revenue for the city was from the battlefield, the city's workforce was in the place. It was the most bustling and chaotic place in the entire city. If not for the fact that warriors had to rest and recover from their injuries and replenish their expended energy, a process that took a lot of time due to the nutrition lacking fishes they ate, the place would have been practically filled by people to the extent even air wouldn't pass through.

It was an eighty-story structure, shaped into a crescent moon, spanning a length of five kilometers and a width of two kilometers. It was simply a concrete behemoth. Once they reached the building, the trio had to go through a myriad of headaches to finish the formalities.

The formalities consisted of a series of identity verification and other matters. Even though Krune was slightly apprehensive at the start, once the process concluded, he heaved a sigh of relief. It was already evening by the time they were done with everything.

Unwilling to waste any more time, they headed into the open, walking through the narrow bridge that was covered with humans either heading towards or leaving from the battlefield. Spanning a width of 100 meters, it wasn't much for the crowd to move through.

Thankfully, they only had to traverse a distance of one kilometer to reach the battlefield. As it was getting dark, Krune noticed massive beams of light fall on the battlefield from the crescent moon-shaped building, brightening it up, allowing the humans to see during the night without trouble.

Upon seeing the shouts of roars and the slaughter conducted nonstop in the place that was covered by a thick layer of blood, Krune shuddered, muttering as he gazed at the unending stream of demons arriving from the other side, "Demon Invasion!"