Is That A Wisp?

Sonic Radar!

Krune scouted throughout the battlefield, outlining every demon and human in his mind. Even though his mind was currently that of a mortal, he was still able to process everything with an intense level of detail. After all, he had the healing energy to rely upon, using it to heal his brain's damage from the overexertion. 

One after another, the numerous splashes of what seemed like tsunamis resounded in his perception. They were the shockwaves produced from the movements of the strong demons, Yellow and Red. 

After all, only they were capable of breaking through the sound barrier while fighting. The moment they arrived at their private ground, Wrister and Flita looked at Krune, nodding once. Then, they took out a tiny piece of meat from their pouches and swallowed them. 

Immediately, their expressions turned into one of bliss as their bodies brimmed with energy. After all, the piece of meat they swallowed was special. It was the meat of a red fish, brimming with enough energy that a single fish was enough to fill their bodies with enough energy that they would feel like bursting.. 

As for Krune, thanks to his Ocean Heart, he was able to consume five such fishes. Though, at present, even he only packed meat worth two red fishes. After all, it was only recently that red fishes began to appear in the second reservoir. 

Plus, there were only ten of them in total. Krune had killed and packed the meat of four of them, two for him and one each for Flita and Wrister. And now, to have enough energy while fighting, they each swallowed a piece of the meat.

Krune then lifted his sword, a Tier 4 Demon Arms that had been used by Flita's father before. Upon seeing a Green Demon, he hacked once, beheading it easily. After all, the Green Demons hadn't reached the peak of Tier 3 yet. 

Most of them had hurriedly approached the battlefield upon birth and hadn't had enough time to reach the peak of their growth. To a Tier 4 like him, it was a small fry. Krune stomped on the ground once, moving before the splash of blood could fall on him.

Along his wake fell the severed heads of numerous Tier 3 Demons. Their first plan was to farm for Tier 3 Demon Cores. After all, they were precious money. Plus, they needed money to take care of their expense. 

As the cost of food and water would only grow in the future, Krune planned to stave off some of the family's burden in terms of money. As it was pretty easy to kill the Green Demons, Krune didn't wish to leave such a source of money alone. 

If the Ralk family grew richer, there only existed benefits for him. So, Krune simply danced through the ground they had bought, killing all the Green Demons in the area. The ground borders were marked by flat plates created using the bones of demons.

They were marked with the respective number for every ground. On top of that, they also formed a border, one that was pretty apparent since they peeked out of the blood-covered ground. 

Once Krune finished killing all the Green Demons in the area, a team of personnel arrived, swiftly carrying all the corpses with them. They were part of a private agency Wrister was on good terms with. Their only task was to transport demon corpses from the battlefield to the city. 

Even though Krune had just slain a bunch of Green Demons, even more arrived within the next ten seconds, causing him to look at it with an incredulous gaze. 'They really are like an unending stream. If the city wasn't as big and heavily populated as it is, and if the bridge to the battlefield was any wider, humanity would have lost long ago.'

For the first round, Krune took action. Flita followed next, killing all the Green Demons. After that, Wrister took action, killing the third wave of Green Demons. They allowed the Tier 2 and Tier 1 Demons to simply run past them, just dodging a little to evade.

After all, it was simply a waste of energy in trying to kill them. And, as long as they waited for around ten seconds, Green Demons would fill up the place once again. It was better to conserve their energy and hunt Demons efficiently. 

Soon, while hunting, Krune focused on using his Sonic Radar, noticing a lone Yellow Demon charging in the Yellow Strip. He noticed quite a few of them, smiling for an instant as he unleashed his Neon Radiance for a fraction of a second, making it as thin of a beam as possible, accurately targeting the Yellow Demon's eyes. 

The Yellow Demon flinched, closing its eyes in reflex before opening it a second later to glare at Krune, getting angry upon noticing his mocking smile. To make things worse, Krune lightly turned around, bent a little, craned his hand backward and tapped his buttock, taunting the Yellow Demon. 

Fuck! You!

He could hear the Yellow Demon's screams as it leaped through the air, flying straight at him. As for Krune, he altered his body's position, taunting the other Yellow Demons that had glared his way. Simultaneously, all of them jumped towards him. 

"Haha, this is nice!" Krune laughed as he spun once, slashing forth with his sword as he decapitated two Yellow Demons instantly. When three others landed right after that, he punched one on the left, kicked the one on the right, and flashed a smile towards the one in the center. 

Upon seeing their reactions, Krune muttered in all seriousness, "It seems my smile is the deadliest attack. Sigh, such is my fate of being too handsome."

His action, his tone of voice, his manner of speech, and the overflowing arrogance on his face caused the Yellow Demons to wish they could kill him first and erase the scene from their memories. 

They immediately began to attack him nonstop as Krune defended himself, smiling when his attackers failed to even get in a hit on him. "Weak! Weak! Weak! You turtles are too weak! Call your boss! You know, that red guy!"