"Ahkk!!!!" The demon screamed as he felt pain all over his body.

However, even with that pain all over his body, the demon did not stand up or something like that.

He was just kneeling, and that was because his body was not allowing him to move.

It was as if the man was tied down to the ground, and that was why he could only scream as he felt the pain of the words attacking him.

And the words...they attacked the demon by burning his face. However, even though it was only burning his face, the demon could feel his whole body burning.

It was as if his face was connected to his whole body.

But it seems like the demon didn't have to mind it anymore as the words...disappeared into thin air.

His face was no longer burning, and the demon could no longer feel the pain of his whole body being burned.

"Haaaa. Haaaa. What the fuck..." The demon murmured as he tried to regain his breathing.

Even though he could no longer feel the burning sensation of the words, the mental stress of his skin being burned was still there.

That was why the demon was distraught as he wasn't even allowed to wash his body or protect his body.

He literally couldn't move his body at all.

However, it seems that the surprises were not done as the man felt something on his face.

It was like an itch, but the man couldn't do anything about it as he was not allowed to move.

Of course, as he was kneeling, the man who was standing in front of him, Desire, couldn't see what was happening.

"Hmm...First Authority should have put you under my control." Desire murmured.

Desire knew what he just used as his instincts helped him to find out about it.

He knew that the First Authority, one of the abilities of the Authority Innate Skill that he had, would put the demon under his control.

Although he didn't know whether it would be applicable to other people or not, he was sure that it would have worked on this demon.

After all, if he knew that it wouldn't work, then he wouldn't have used it at all.

However, before even Desire could confirm if the demon was indeed under his control now, something happened with the demon.

And that was...his face started to emit smoke. The smoke wasn't that thick, but the smoke...didn't last that long as the wind blew it away.

It seems that the demon was fine as he didn't scream in pain or something like that.

"Huh?" Desire murmured as he noticed that something appeared right in front of him.

And that was...the Unknown.

[One of Authority's abilities, First Authority, has been used.]

[First Authority has successfully made the demon, William Rayheart, to be Desire's slave.]

[The Demon's Oath has taken place.]

And that was what the Unknown said. It basically just confirmed for Desire that the demon in front of him was his slave now.

However, there was something that caught Desire's interest, and that was the third line.

He then willed for the Unknown to explain it better, and it seems that the Unknown doesn't plan to disappoint Desire as another screen appeared.

Of course, Desire began to read it right away.

[The Demon's Oath]

-The Demon's Oath is connected with First Authority.

-The Demon's Oath is an oath that makes any demon that Desire meets his slave.

And...that was it. That was all the Unknown had to say for The Demon's Oath part.

"Hmmm...so any demon that I meet from now on will be my slave? Is that how it is?" Desire murmured as he read The Demon's Oath.

However, he couldn't understand it.

"Why do I have something like this?"

Right...he couldn't understand how he has such a privilege. If any demon that he meets will be his slave, Desire would be a powerhouse in no time at all.

But...it doesn't make sense at all. Desire didn't even know the existence of the demon race before, and now, Unknown was basically saying that he had absolute control over them.

What's more, Desire was sure that he has no connection with them other than the Summon Familiar Skill.

"Hmm...I guess I will have to find out about demons sooner or later, too." Desire said, but it seems that the Unknown was not done yet as another screen popped up in front of Desire.

[Demons under The Demon's Oath]

-William Rayheart

-N/A

-N/A

-N/A

-N/A

And when Desire read it, he immediately understood what it was about.

"So...I can only have 5 demons under my control? Damn, I thought I would be able to have an army of demons." Desire said as he looked at the screen.

However, he didn't care about it anymore as he whipped it away from his vision.

After all, it was just saying the number of demons that he could get with The Demon's Oath.

There was no need to think about it anymore as the situation right now was more pressing.

It was then that Desire spoke once more as he looked down on the demon in front of him...on William Rayheart.

"Stand up." He said.

And when William heard that, his body...forced him to stand up. Well, he couldn't control his body, after all.

And as soon as he stood up, Desire was able to see something change in William's appearance.

To be exact, William's face has changed.

"What the hell is that?" Desire murmured as he looked at William's cheeks that now had the shade of red.

On William's right cheek was some kind of...symbol. That symbol was three circles interlocked together. It was like a Venn diagram.

And those three circles had the shade of red. It was something that Desire has never seen before, and even William has never seen something like this.

However, since it appeared right after Desire used the First Authority or The Demon's Oath, it was clear that this...was a symbol of William being a slave of Desire now.

Of course, even Desire thought that way as he spoke, "I guess that's the sign that you're my slave now."

"Does that disappear when I want it to disappear?" Desire murmured as he willed for the symbol to disappear from William's cheek.

However, the symbol was still there even though he already did it.

It was...shocking, but of course, Desire just let it go since it wasn't that important, anyway.

What was important was to understand how this slave thing works now.

Although Desire was able to get William with The Demon's Oath, Desire wanted to know if William wanted to be his slave or something like that.

Well, Desire kind of forced William to be his slave, but...Desire wanted to know if William wanted to break free or something like that.

And since Desire has William under his control, he only needs to ask.

That was why Desire spoke again as he looked at William.

"Did you want to become my slave, William?" Desire said it without running around the bush.

And right after William heard those words, his...throat made some sounds, "No."

And it was another straightforward answer.

After all, who would want to become a slave of another being? Unless one has extreme loyalty from his heart or was just a pervert, no sane man would want to be a slave.

Anyways, what Desire got from this...conversation was that...William doesn't have control over his body at all.

It was easy to guess as William seemed so lifeless when he spoke or moved.

And Desire...didn't like that. Although he wanted William to be his slave indeed, he didn't want a lifeless doll.

If he wanted a lifeless doll, he could have just gotten that with the help of his master.

'How do I release the control over his body, but also prevent him from disobeying me...' Desire thought as he looked at William.

He wanted William to have the freedom to be himself, but not that much that he would be able to disobey him of course.

'Unknown.' Desire thought as he expected that Unknown would have an answer for this.

There were several screens that popped up, but nothing that answered his question.

'The Demon's Oath.' Desire thought as he wanted to go back to the previous screen that he saw before.

[The Demon's Oath]

-The Demon's Oath is connected with First Authority.

-The Demon's Oath is an oath that makes any demon that Desire meets his slave.

'Hmm...the second part.' Desire thought as he tried to make the Unknown explain the second part of The Demon's Oath.

He expected that the Unknown would have an answer for him somewhere, and it seems that he was correct in thinking that as another screened popped up in front of him.

And what it said was...

[The Demon's Oath is an oath that makes any demon that Desire meets his slave.]

[Advice!]

-With or without The Demon's Oath, a demon would want to be Desire's slave. Give time for the demon to adjust after giving The Demon's Oath or after meeting them.

And what it said was...something so ridiculous that even Desire was unable to believe it.

'They want to become my slave?' Desire thought as confusion set in his mind.