I Don't Belong To Such A Stupid World

Undead Knights, each one was a low-tier monster, Alex summoned a Overfiend Blade of Nulgath and ordered it to help the adventurers with killing as many of them. 

Beldia: Hmph, hahaha! Come, let me hear your screams… of… despairs…?

There was something wrong with the Undead Knights, every single one of them were enthusiastically chasing after Aqua.

Aqua: Wah! Wahhhh! Why just me? I-I'm a goddess! A goddess, so I always do good deeds!

Darkness: Ahhh! How, how sly! I'm the one who always does good deeds, so why are all the undead knights running over to Aqua…!

Beldia: You, what are you all doing?! Don't just chase that priestess, cover this town with the blood of the residents…!

While the undeads were chasing Aqua, the flying greatsword attacked them, destroying 1 or 2 each time, but they and Aqua were going pretty fast, so it was hard for the sword to destroy them all.

Anyway, this was a good chance for Alex.

Alex: Hey Megumin, could you cast an explosion spell on that bunch of undead knights?

Megumin: Eh!? We are too near to the town and they're too dispersed, I might miss some of them…!

Aqua: Wahhh, Alex! ALEX!!

Aqua was bringing the large crowd of undead knights with her towards him. He summoned a second Overfiend blade of Nulgath and sat over it, before flying away. After that, he summoned two Evolved Shadow Spears of Nulgath and shot them to the group of the undeads.

When the Evolved Shadow Spears of Nulgath reached some of them, they let out some medium-sized black-colored explosions, Alex didn't stopped there and created more spears, slowly destroying them little by little.

Beldia: W-What?

Alex: Free Experience Points!

He killed enough of them to reach level 21, and have a total of 8 skill points, but they were too little now to be a problem so he turned his attention somewhere else, Beldia, who was gazing at Alex.

Beldia: Fuhahaha! Interesting! That's interesting! To think my minions would be wiped out in a novice town like this! All right, I'll keep my promise! I'll personally handle you!

Alex hopped down from his Overfiend Blade of Nulgath and made the other one float back to him. With the two Overfiend Blades of Nulgath floating beside him, he then summoned the Combat Soulreaper of Nulgath on his hands and prepared himself to fight.

This isn't a joke, a single error would mean his death…  But suddenly, lots of armed adventurers surrounded Beldia, protecting him.

Beldia: Oh? The targets I prioritized should be that strange guy over there… But… Hmph, if you all somehow manage to defeat me, you will get a hefty bounty… Come, novice adventurers dreaming of getting rich instantly. Charge at me at once!

The was some silence before someone spoke.

Adventurer: Hey, no matter how strong he is, he doesn't have eyes on his back! Surround him and attack!

And then, that one almost reached the flank of Beldia. Meanwhile, the dullahan tossed his own head in the sky. It was looking downwards, giving chills to Alex.

And suddenly, Beldia seemed to have eyes on his back as he dodged with ease the adventurer's attack, same with the others. Then he wielded his greatsword with both of his hands, slashing all the adventurers at once.

Then they fell dead, they didn't had even the honor to make a successful attack at him…

Beldia listened to the sounds of their bodies falling with satisfaction and raised his hand into the air, catching his head.

Beldia: Who's next?

All the adventurers on the scene were intimidated by these words, and then one girl came forth and yelled.

Girl: Trash… Trash like you…! Trash like you will be done in with just a slash from Mitsurugi!

Alex: ...Oh shit…

Alex panicked a little and looked at Aqua, who was at the side of the dead adventurers. He ignored her and gazed at Beldia.

Alex: ...I'll be the next one… [Shackle]!

Chains reached for Alex and created a sort of armor made of chains, before he dashed towards Beldia. The two Overfiend Blades of Nulgath reached Beldia before Alex.

Beldia laughed and raised his greatsword to block the incoming blades.

Beldia: You think just that will be enoug-Ugh!

He didn't expected the two colossal swords to hit him with the strength of a truck, and was flung away.

Beldia: What…?! What are those swords?! Are… Are they legendary weapons?!

Alex didn't answer and reached Beldia, slashing him with the scythe, but Beldia blocked it with his greatsword, and was actually fast enough to hold busy both Alex and the two Overfiend Blades of Nulgath with a single hand.

Beldia: Hahaha! Who knew such a person would be here! Hey! You are strong, what level are you?

Alex: Alexander Carter, I'm a Void Highlord of level 21.

Beldia: Just level 21!? Haha! Great! What do you think about joining the Demon Army? If someone like you is let to grow up, you will surely be able to reach the level of the Demon Generals, or much more!

Alex: I have better to do! [Unshackle]!

*BOOOM!*

A large shockwave sent Beldia back away, the chains on Alex's body exploded, releasing immense power. He made the scythe disappear and summoned two Champion Blades of Nulgath, before he shot himself towards a stunned Beldia.

Beldia: Wha-guh!

Alex reached Beldia in an instant and started a combo of attacks to him, and fortunately…

+Unsurmountable.

Alex's vigor rose even more and his previous wounds slowly healed back, surprising Beldia even more.

Alex: AQUA! USE YOUR SPELLS ON ME!

Aqua: Yes! [Enhance Strength]! [Enhance Speed]! [Enhance Defense]!

Alex started to glow, and his combat prowess increased even more.

Right now Alex's strength was more than enough to put the dullahan in a defensive, then Alex despawned the Champion Blades of Nulgath and grabbed the two flying Overfiend Blades of Nulgath, and started another chain of attacks that were much brutal than before.

Beldia: [Undead Power]!

Beldia slightly powered up to keep up with Alex's new strength, but...

*Crack*

That was Beldia's greatsword, and it was cracking under the pressure of Alex's fast and vicious attacks. 

Beldia: Hahaha! This is great! You truly are a demon! Unlike the other idiots with strange weapons or abilities that arrive in front of us, you really worked for this, Void Highlord! 

Your power are unnatural for someone of that level, I would say that you were a level 35 at the beginning… But now you seemed to have reached Level 55 in terms of power!

Alex: RHAAAAAAHHHHH!!!

He slammed both of his colossal swords on Beldia's greatsword, snapping it on two, the Beldia jumped back to dodge Alex's strikes, then he threw his head on the sky again.

But he was unable to see the Oblivion Blade of Nulgath behind his head, which stabbed itself on it and splitting it in two.

After that, Alex threw his two Overfiend Blades of Nulgath at the body, before creating a Combat Soulreaper of Nulgath and cutting the pierced body in half.

Just the instant after Alex cut it in half, the power-up from Unshackle ended and he fell unconscious in the ground. The Oblivion Blade of Nulgath fell from the sky and fell on Alex…

*Shiiin*

And it pierced Alex's neck...