Axel's PoV:
I manipulated the condensed mana swords and aimed them towards the demons.
I kept on creating more condensed mana swords until they had reached a hundred in numbers.
The demons shivered in fear as they witnessed their impending doom and I didn't plan on letting them go without dying.
With a wave of my hand, the hundred condensed mana swords that were floating on top of me were launched towards the demons at high speed.
Most of the demons started to ran away from the condensed mana swords while a few of them didn't struggle to escape but instead, accepted the fact that they were going to die.
I admired that a few of the demons didn't struggle to escape which made my job a lot easier so as a reward for them, I swiftly and painlessly killed the demons that didn't escape.
Of course, I decapitated the demons that had not struggled to escape from my attacks using the condensed mana swords.
Decapitation was painless as it would sever the head from the spinal cord and the rest of the body which would cause a painless death.
I burned the corpse of the demons using my fire magic as I didn't bother to loot them since I already have a professional thief on our team that could steal high-ranking artifacts and items.
"All of you are not going anywhere unless you die!"
After I yelled that towards the demons, I used my wind magic to lift all of the demons in the air and then I trapped all of the demons in a mana cube.
I manipulated the mana cube to slowly shrink which caused the demons to be cramped inside the mana cube.
The demons screamed in agony as they were being squeezed inside the mana cube since the mana cube kept on shrinking in size.
It was similar to how a car or any huge metal object was crushed and squeezed into a cube.
After a few minute's worths of hearing the demons scream in pain, I could no longer hear the demons so they should be dead.
I released the mana cube which caused a medium-sized block of demon corpses to drop on the ground.
Blood dripped from the block of the demon's corpse while some bones were present outside the demon's corpse.
If the demon corpse wasn't damaged by me, it could have fetched a good amount of money due to how durable a demon's bone was, and not to mention the demons that I had killed were at least demon noble rank.
I didn't bother devouring the flesh of the demons since they weren't worth eating. With my current strength, I needed to at least devour the flesh of an archdemon and a demon lord to have a noticeable boost in my strength.
I might as well cremate the corpses of the demons that I have turned into a cube.
As I thought of that, I conjured black flames on my right hand and I used the black flames to burn the corpse of the demons.
After only several seconds had passed, the demons' corpses had already turned to ash while the rest of the black flames burned the ashes of the demons' corpses.
I suddenly noticed a presence near a house and it was coming from the archdemon that I had noticed a while ago.
The presence kept on getting nearer towards me so I conjured several condensed mana swords while creating a mana barrier to protect the humans that were supposed to be executed.
"Isn't it time for you to show up? You do know that your invisibility skill or whatever skill you are using to hide your body wouldn't work since I can sense your presence. Maybe you should work on hiding it, next time pal. If, there is next time for you."
I spoke towards the direction where I had felt the presence of an archdemon.
After I had said that, a demon at archdemon rank appeared a few meters in front of me.
The archdemon was wielding a spear that must be legendary rank while wearing fancy clothes. The archdemon didn't wear any armor so he must have been confident in his defenses.
"You found out? I made sure to conceal my demonic mana to the point that only beings who have an affinity towards demonic magic could sense it. Wait, don't tell me you can also use demonic magic?!"
The archdemon was shocked after he realized the possibility that I possessed an affinity towards demonic magic since I could sense his presence.
I created a demonic flame on top of my right palm and presented it to the archdemon.
"Oh, this? Sorry to break it to you pal but I can use almost all affinities of magic! Be it holy magic or demonic magic! There is almost no magic that I can't wield!"
I boasted towards the archdemon that was even more shocked in the process as I could use demonic magic with ease.
I had activated several condensed magic swords on top of my head and beside me, created a mana barrier to protect the humans while using demonic magic on top of that.
That was why the archdemon was only slightly shocked because of my affinity with demonic magic but was completely surprised by the fact that I could wield and cast multiple magic at the same time while still maintaining my magic.
My mana pool has already reached a hundred billion in capacity so I could even use time magic at some point.
Wielding 3 magics skills at the same time was an easy task for me and I could even wield 10 magic skills if I wanted to but I would need Axel 2's assistance if I wanted to pull off 10 magic skills at the same time.
At least I could activate 5 magic skills at the same time on my own and if the dragon king and Axel 2 helped me, I could activate 15 magic skills at the same time.
As I thought of that, I looked back towards the archdemon that was still shocked by my skills.
"I'll let you choose your death since you didn't interrupt me from killing your kin. In what way do you want to die? Decapitation? Blood loss? Or burning to death?"
I asked towards the archdemon that had somehow resolved himself to confront me.
The archdemon tightly held the spear on both of his hands while executing a fighting stance and pointing his spear towards.
"Since you didn't accept my kindness in letting you choose how you die, I might as well be the one who chooses how you die! I'll kill you by using my mana sword! I'll hack you into pieces so that you will rest in pieces!"
I yelled towards the archdemon as I threw the demonic flames on my right hand towards the archdemon.
The archdemon caught the demonic flames but for some reason, the archdemon wasn't burned by my demonic flames.
Seeing that my demonic flames attack was useless against the archdemon, I decided to use the condensed mana swords.
I directed the condensed mana swords towards the archdemon and bombarded the archdemon with numerous condensed mana swords.
The archdemon then used his legendary rank spear to deflect the condensed mana swords that I had launched towards him.
There were some condensed mana swords that the archdemon wasn't able to deflect because of the tremendous speed that the condensed mana swords were traveling at.
Some minor cuts were present on the archdemon's body while blood oozed from the wounds on the archdemon's body.
The archdemon took out a potion filled with red-colored liquid and he used one of his hands to open the lid of the potion bottle.
Before the archdemon could place the opened potion bottle in his mouth, I quickly launched a condensed mana sword towards the potion bottle which caused the potion bottle to shatter into pieces so the red-colored vial inside the potion bottle was spilled on the ground.
Since I destroyed the potion bottle of the archdemon, the archdemon couldn't heal his wounds so I was now at an advantage against the archdemon.
The condensed mana swords that I had materialized using my mana weren't enough to deal with the archdemon so I decided to create more condensed mana swords.
With a snap of my finger, thousand condensed mana swords appeared on top of the archdemon and the archdemon was now surrounded with thousands of condensed mana swords with no way to escape.
"Any last words?"
I asked the archdemon.
"Go to hell, you goblin bastard!"
"I'll take that as your last words. Now die!"
As I shouted towards the archdemon, the thousand condensed mana swords that surrounded the archdemon were launched towards the archdemon.
The archdemon was pierced by thousand condensed mana swords like how a pincushion was pierced by numerous needles.
The archdemon coughed out blood and the archdemon died in just a minute due to blood loss and having his organs being destroyed.
I walked towards the archdemon and stored the archdemon inside my system inventory.
Afterward, I scanned the surroundings to see if any demons had slipped through my detection range but it seemed that the archdemon was the last demon in the human kingdom.
"Now that problem is solved, might I ask who you humans are?"
I asked the humans that were on the execution spot while looking towards them.