The Isekai Adventure System
The Red Devil !

Previously Sven was trailing the black demons who were carrying carts full of food and other materials, and their journey was like they were heading somewhere to deposit the cart.

Sven had been trailing them with his crow form for 3 hours, and finally the black demons entered a demon city.

The city looked quite large and was filled with a race of ferocious monsters such as Minotour, Chimera, Undead and many more.

Sven saw so many strange races and also saw many black demons within the city, yet Sven did not want to make an excessive fuss to hunt down black demons, because it's pretty crowded in the city.

Sven thought that if he attacked and hunted the black demons now, then the entire city would gang up on him and make him difficult.

Therefore Sven will continue to follow them until he finds the right location to do his hunt against the black devil.

For now Sven will use his Wizard Form skill that will change his form into a black demon as well.

Now Sven was already a black demon and was about to enter that city aiming to find some sufficient information.

After he disguised himself by changing his form into a black demon, he had already entered the city and would socialize with the surrounding community.

Sven entered a very strange and quite large building, then inside the building Sven saw that there were so many black demons and also many ferocious monsters chatting while relaxing.

It turned out that the building that Sven entered was the demon adventurer guild building.

Sven was about to ask the female demon who looked like the receptionist of the guild maids.

"Excuse me. anu. I want to ask..." Sven.

"What question is there ?" Reply to the waiter.

"Can I have a map ?.." Ask Sven.

"This map of the country or a map of the region here ?.." Ask the guild servant again.

Then Sven asked both of them for a map of this demon country and a map of this city area. After that Sven was questioned about his identity by the guild's servants.

Fortunately Sven can overcome his disguise by claiming his name is Darko who comes from another city.

Then Sven was asked to show his adventurer card.

"Sorry.. My adventurer card is missing on the street.." Sven told a lie.

"Then you have to restart the quest.." Said the guild servant.

Inevitably Sven will register as an adventurer in the demon country, after completing the registration form and Sven is given a white skull necklace and a demon adventurer card.

"The skull's necklace will change color if it kills a lot.." Said the guild servant.

"I know that..." Reply to Sven who lied.

Sven was actually pretending to know, as he had previously claimed to be an adventurer who eliminated his cards and necklace.

Then Sven used an analysis system about the demon country adventurer guild.

[System!]

[The adventurer guild of the demon country!]

*Quest for demon adventurers.

white Skull Necklace (Kill 100 Humans)

red Skull Necklace (Kill 500 Humans)

purple Skull Necklace (Kill 1000 Humans)

black Skull Necklace (Kill 1500 Humans)

golden Skull Necklace (Kill 2000 Humans)

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*If you kill a fellow demon it will change the shape of his necklace to half the face of the skull which means wanting to become a candidate for the demon General or demon king.

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*Quest Demon General candidate.

kill 500 red demons.

kill 500 black demons.

kill 3 demon generals.

- Kill the demon king.

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After finishing his analysis, Sven is shocked by what he sees from his screen system saying that they can kill each other including his own king.

However there was a positive side to this guild registration, as now Sven could kill them without any suspicion.

Sven had no intention of becoming a demon lord or anything like that, as his goal to this demon country was only to train and strengthen himself who would face the god Lokis.

But after he thought again, he thought that if he was able to kill a demon general or demon king, it would make him much stronger.

So Sven decided to try to kill the strongest demons.

Next day.

Sven looked at the map of the demon country and was going to head to the location and place where the red demons were.

Sven walked and walked the place he went.

Arriving at the location, Sven saw a cave that was quite large and could feel there were many red demons living and reproducing in the cave.

Sven can feel it because now he is in the form of a black demon and also has a black demon skill.

Without any hesitation, Sven immediately entered the cave and would begin the slaughter of the red demons.

When Sven was deep in the cave, Sven saw so many red demons who were marrying one red demon woman, and there were thousands of male red demons and were queuing up to marry one such red demon woman.

To Sven's surprise, the female demon gave birth very quickly in just 10 seconds.

The sight made Sven fed up and instantly killed the female demon.

Sven ran quickly and hit his big demon hand, "Craaak..!! The sound of a head being crushed and broken from an extremely loud fist.

Suddenly the thousands of red demons were angry and raging because her female demons were killed in a terrible way.

The thousands of red demons were directly pointed and were staring at Sven who was in the form of a black devil with a sharp gaze and preparing to make a fight.

Actually the red demons did not dare to challenge or fight the black demons, but they saw Sven who was a black demon who was alone, making thousands of red demons so dare to fight against him.

Then Sven was ganged by those who numbered in the thousands by clawing, beating and biting him.

Sven did not use his set of armor and also did not activate his Impact Counter skill.

So Sven felt the pain in his claws and was bitten by thousands of red demons.

Not only did Sven keep silent, he also attempted to escape by using his Elemental Wizard skill which took out the Sharp Ice Barrier.

The skill casts out ice element magic that is in the form of a thorn or thorn like a blade and a sword that surrounds and circles itself.

After which, the red demon that touched his Sharp Ice Barrier instantly froze and was severely injured from touching the Sharp Ice Barrier.

After that Sven immediately took out his Elemental Wizard skill which cast a dazzling light element magic and stopped his braking towards Sven.

Then when the red demons had trouble seeing, then Sven used his Elemental Wizard skill which released the magic element "Blizzard Storm" and instantly froze half the red devil (500 demons).

The demon that had been frozen was instantly destroyed and annihilated with the Elemental Wizard skill that cast earth element magic or earth "Spike Ground".

That Ground Spike Skill made the ground spiked like a huge spear and numbered in the hundreds around it.

Sven instantly slaughtered half of the red devils, then Sven repeated the strategy used before to kill all the red devils in the cave.

Suddenly a notification appeared from his status screen saying something after he finished slaughtering 1,000 more red demons.

\[warning!\]

\[System!\]

\[Have born 10,000 demons!\]

\*If killing demons without using god light or white fire, then 1 slain demon will be born 10 demons.

\*You have killed as many as 1,000 demons and you have awakened 10,000 newborn demons.

Upon seeing that Sven was instantly shocked and startled by what he saw from his status screen system, as sven had awakened 10,000 demons.

"Ouch!.. I forgot about that!"

"Damn it!.. I have to be careful!"

Then his skull necklace suddenly split and became half the face of the skull.

With that split skull necklace mark, it means that now Sven is a challenger to the demon general and a challenger to the demon king.

Sven returns to the demon city before and he is still disguised as a black demon.

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Thanks for reading !