A/N: The Slayer is heavily OOC in this story, because well I want character development and not just a silent demon slayer who's too angry to die. He will speak only a few times in the beginning parts of the story but will open up and begin speaking more as time progresses. If you don't like this, then well don't read it. But I digress, enjoy the story.

Prologue

There was a sound of constant buzzing filling my ears. What… what happened? I remember killing the Spider Mastermind. My vision was distorted, but nothing I couldn't shake off.

As my vision slowly cleared, I realized where I was. The Tether that was installed into my suit ripped me back to the destroyed UAC Base on Mars. What I couldn't understand was why its tendrils were holding me in place.

"You've won - It's over…"

Oh. Of fucking course, dammit. I glared at the robot named Samuel Hayden that was slowly walking through the smoke towards me. If looks could kill, he'd be a pile of scrap metal.

"You stopped the invasion and closed the portal. But it's come at a price - Argent, VEGA. This entire operation. You see, I've watched you work - come to understand your motivation."

I could only grit my teeth as he slowly circled around me. He doesn't realize the consequences. He doesn't realize that by doing what I think he's going to do, he will doom humanity.

"You think the only way is to kill them all - leave nothing behind - and you may be right. But we can't just shut it all down. Without Argent Energy it will be worse." He shook his head. "I don't expect you to agree."

I fucking knew it.

The doctor's hand stretched out, the Demonic Crucible snapping to his hands. He raised it up, as if it was some kind of fucking trophy and not a world-destroying artifact.

"But with this... we can continue our work."

He notices the absolute hate-filled gaze that I'm giving him.

"I am not the villain in this story. I do what I do... because there is no choice."

I strained as hard as I could against the Tether locking me in place. I kicked, I punched, I tried my damndest to break free.

"Stop that. You look like a petulant child having a temper tantrum."

Seeing as I could not make any progress, I chose to speak instead.

"You have no idea what you are doing, Hayden." I snarled.

I internally winced. After not using my voice for eons except for grunts of pain or roars of anger, it sounded like someone started grating rocks on a grater and amplified that noise with speakers.

The doctor was visibly taken back by the fact that I could speak, but soon recomposed himself. I could tell he was returning my glare with a glare of his own, from the tone of his voice.

"Oh, but I do. With Argent, we could advance our technology to places that we've never imagined. Argent is a clean and reliable source of energy that far outclasses any other method of energy production we currently have. The benefits far outweigh the negatives, Slayer. Why can't you just see that?"

Just as I was about to retort, an intercom conveniently spoke up, cutting off my speech.

"Re-routing Tether coordinates… Complete."

Samuel Hayden takes one last long look at me.

"Our time is up. I can't kill you - but I won't have you standing in our way."

He activates the Crucible, an ethereal red blade covered in demonic runes erupting from the bony hilt.

"Until we see each other... again."

He does a slow dramatic turn, walking away from the metal walkway. I try one last time to do anything, anything, to break free and smash his face in. But to no avail.

I gave a guttural scream, cursing the treacherous doctor as the Tether activated, lightning streaming all around my body as I was ripped from reality to be flung to an unknown location.

It hurt everywhere.

I couldn't move at all. Any attempt to move my limbs would result in excruciating pain. I could hear something, but it seemed distorted and far away.

"What… think... it is?"

"...fucking… suit of armor… probably sell it."

As my vision started clearing up and my regeneration factor kicked in, I could finally see who was talking in front of me. Needless to say, I was not expecting it.

Two demons currently stood in front of me, but they looked nothing like the demons that I've been fighting for eons. Demons don't talk, and they certainly never wore clothes. One had red skin and was wearing a ratty shirt and jeans, with large protruding horns with alternating black and white bands on them. The other looked similar to him except that he was just wearing different clothes. Seems like they were conversing about trying to pick my armor up to try and sell it.

I inwardly chuckled. If these demons were any indication, then the city nearby must be populated with them too, and I towered over them by nearly fifty-one centimeters. Not to also say that the armor only works with me, as it was programmed to. Not even the brightest minds in the UAC could crack into this armor to damage or rewire it. Just a few more seconds of laying in this damn hole…

The demon with the white shirt finally turned back to me. Or rather, he probably thought he was just turning back to what he thought was an empty suit of armor. "This'll obviously fetch a high price tag, dude. The armor does look weird but if it survived a fall from what looks like fucking Heaven, then this shit's obviously hella durable."

His friend only gave him a flat stare in reply. "Right, and before we talk about selling it, we actually have to fucking pick this damn thing up. It's literally bigger than us and made of some unknown shit, so how much do you think this fucking thing weighs?"

While they were distracted, my arms finally regained some feeling to them again. Time to chew gum and kick demon ass.

My arm shot out in a blink of an eye and promptly latched onto the demon with the white shirt, bringing him in just close enough to deliver a devastating right hook, spattering blood, skull fragments, and brain matter all over the ground.

His friend only looked at me in horror. "What the-"

He didn't have time to utter another word as I delivered a swift front kick to his solar plexus, knocking him down before I crouched down and slammed my fist on top of his skull, popping it like a water balloon that was made of bones and stored blood and brain matter instead of water.

I slowly stood up and wiped the blood off of my gauntlets. So, these demons are actually sapient. They can talk, they wear clothes, and are capable of thought. They were eerily human-like, which made me slightly uneasy. But demons were demons, and they lived in Hell for a reason. I looked to the nearby city, with more of those strange, stout demons milling about their day.

I cracked my knuckles and began sprinting. Rip and tear, until it is done.