The Isekai Adventure System
The Black Demon !

Sven returns from the massacre of a thousand red demons into the demon city, and he has now obtained a necklace half the face of a skull that signifies as an adventurer challenger to the demon generals or demon kings.

When he was in the city, all the demon residents who saw the half skull necklace looked frightened and away from Sven who was in the form of a black devil.

"It's according to my plan!.."

"The demons' reaction here looks terrified..."

"After that I will be directed to the place of the stronger demons..."

Sven muttered as he walked towards the demon adventurer guild building.

After entering the demon adventurer guild, Sven was told by the guild's servants to move there, inhabited by the challenger demons.

Sven instantly looked at the map and was walking towards the city of the challenger demons.

His journey to the city took a long time about 5 days, and he arrived in the city while looking at the state of the surrounding city.

Inside the city there were quite a number of black demons, challengers to the general and the demon king, who wore a half-skeleton necklace and resembled Sven's necklace.

The atmosphere in the city was gripping and tense, looking at each other with murderous gazes.

Sven feels that his plan is going well, because then Sven will be free to kill the black demons.

Since Sven was already a challenger demon, then he was unable to enter the guild building and could only stand idly outside the guild building while stalking the demon they were about to hunt.

Sven understood the situation he was feeling and he was now being targeted by some black demons, then Sven deliberately came out of the city to see the reaction of the challengers.

It turned out to be true as he thought, when Sven came out of the city there were 5 black demons following him from behind.

Sven pretended not to be aware of their existence and was herding them into the forest.

Arriving in the forest, Sven is confronted by five black demons who follow him, the five black demons are seen working together to kill Sven.

"Haha!.. A novice challenger like you must die now!!.." The black devil.

Not much ado Sven directly pulled out a Cleric Battle Mace (CBM) weapon that contained white fire elements from inside his magic bag.

Then Sven ran towards one of the black demons before him, "BAM..!!! the sound of his CBM weapon lashing out and instantly unleashed a white fire element that burned the black demon to ashes.

Then the four black demons who saw it looked panicked and frightened, they undoed their intention to kill Sven and were about to try to escape.

However Sven did not allow them to escape, Sven immediately ran after them quickly and directly beat them and burned them to ashes.

Sven deliberately left one black demon to have him spread the issue and news about his having slaughtered three black demons easily.

Then the black demon that he let live was immediately fleeing in fear and would spread the issue of Sven the black demon who had the white fire element.

Sven would now wait inside the forest while making a temporary basecamp, and he waited for the news to spread widely.

After a few days, Sven's guest came dozens of black demons who came to him carrying weapons that were far away like long spears and purple fire arrows.

They deliberately carried a long-range weapon to avoid the white flame attack that Sven had and it seemed like the issues and rumors about Sven had spread widely to all the black demon challengers.

As Sven expected, the challenger's black demons were lured with his bait to bring them in easily.

Now Sven would slaughter them happily while laughing in satisfaction, but the black demons were quite clever and could hold Sven with his long spear and be assisted by the archers from behind them.

Sven struggled to reach his short attacks and he was constantly not given the slightest chance to get close to them.

"Curtain!.. You guys are good too!!.." Sven.

"Don't give him any distance!!.." The words of the black demons.

Sven continued to try and try relentlessly which fight lasted for 2 hours, Sven really could not enter their range despite trying hard.

They were surprised to see Sven who was in the form of a black demon suddenly turned into a huge red dragon.

"In-he's no ordinary demon!!.."

"Care...!!!"

Sven spouted hot lava from his dragon mouth which made the feet and hands of the black demons melt and paralyze instantly, then Sven again changed his form into a black demon and immediately beat them with his CBM weapon.

Dozens of black demons were burned to death by the white flames until it was charred to ashes.then as usual Sven left one or two black demons to have them spread the issue about him throughout the demon country.

Sven returns to his camp basecamp to await their arrival.

And he expected the number of black demons that would come next to it to be more and more.

*Quest Rank SSS+

-47/1,000 black devil horns.

.

But Sven did not feel this hunt made him any stronger, as Sven had yet to encounter a powerful demon and only fought with weak demons.

However, Sven will not give up and will wait for the presence of a black demon that is stronger than before.

One week later, Sven's hopes were granted, which were approached by hundreds of black demons who used war formations like their vanguard using a huge shield, then behind him was an army of long spears and also an army of purple fire archers.

And his last line was a black demon that looked like their leader.

Sven will use the same strategy but he will not change his form into a red dragon, but he will change his form into a dragon king, the King of Dragons.

The form of the King Of Dragon measuring 100 meters more made the formation of hundreds of black demon troops fall apart from fear while running in disarray.

The Sven who was in the form of a king of Dragons could thus emit bursts of purple flames directed at them.

The hundreds of black demons were burning in pain while rolling around in heat.

However Sven deliberately to not kill them with his purple flames and he would execute them with the white flames of his CBM weapon.

"Bam..! Buukhg..! Daakhs..! The sound of his CBM weapon lashing out white fire elements and burning them to ashes.

When Sven was killing hundreds of black demons, but there was one black demon who was silent while watching Sven slaughtering them.

The lone black devil started to move and approached Sven slowly and looked relaxed.

After Sven finished and finished slaughtering everything, then came the black devil who was before him.

"Hoh!!.. So you're the leader ?!.." Ask Sven.

"... ... ... ." The black devil is silent.

"You are mute ?.. Ohhhh!!.." Said Sven who was upset.

Sven immediately punched her face with his bare hands and made her bounce.

The black devil woke up and got up after being hit by the fist from the hard Sven, the black demon's face was slightly bruised and bloody, but the demon remained silent and did not retaliate or anything like that.

Sven was made to wonder with his cold demeanor and just kept silent.

Sven walked up to him, and now they were coming face to face with facial expressions filled with killing intent and preparing for a serious fight.

.

Thanks for reading !