[Location: Underworld]

High above in the open skies of the Underworld (how does that make sense?) the city of Agreas hangs over the lands like a satellite. It's Chief Advisor for the Technology Department, Ajuka Beelzebub, is currently reading reports about a strange power fluctuation recorded in the Human world earlier today. As of right now, there are two guards patrolling one of the court yards.

Guard1: Hey, Valac.

Guard2: Yeah?

Guard1: Do you ever wonder-

Guard2: No, Zagan, I don't wonder why the fuck we're here! Stop asking!

Suddenly a bolt of red lightning flashes across the ground infront of them. They take notice and freeze.

Guard1: The home was that?

Another bolt of lightning flashes. Then another. Until suddenly a bright light flashes so intense, it causes the two guards to shield their eyes. As the light dies down they finally lower their hands. What they see standing infront of them leaves them in shock.

Doomguy stands at his full height as small red bolts of lightning dance across his form. In one hand he holds a plasma rifle at the ready. In the other he holds a bleeding, armless, Serafall by the back of her neck. She flutters her eyes open, tears streaming over her bloodied cheeks, and sees the two guards.

Serafall: I'm... s-sorry...

Without hesitation, Doomguy quickly twists his wrist. Causing Serafall's head to snap violently to the side. Her eyes twitch for a second before the light fades from them completely. Doomguy tosses her body to the side like a rag doll and grabs a hold of his rifle in both hands. The two guards take a stance and prepare to fight. Doomguy just walks towards them.

[Location: Gremory Territory]

In the Gremory Palace, three members of the clan can be found in a bedroom, spending family time together before a meeting. One of them, a man by the name of Sirzechs Lucifer, leader of the Underworld or whatever position he's in playing games with his young son, Millicas Gremory. With with his wife, Grayfia Lucifuge, sitting on the bed reading.

As the pair pretend to be Satan Red and Oppai Dragon, Sirzechs hears a ringtone from his hellular phone. He stops their little pretend playtime and went to retrieve his phone, Millicas going over to his mother. Sirzechs picks up his phone and sees it's Azazel's number.

*beep*

Sirzechs: Hey, Azazel! How they hangin'?..... Woah woah woah, slow down! What happened?

He listens carefully to what his fallen angel friend is saying. In mere moments his eyes grow wide as all the color is drained from his face. The phone falls from his hand as he leans back against a wall and slides down to the floor. This catches Grayfia's attention.

Grayfia: Sirzechs?... Sirzechs, what's wrong?

He pays no attention to his wife. He clenches his hands tightly till the knuckles turn bone white, his red eyes now glowing brighter from the flow of emotions in him. His face contorts into a snarl as rage begins to well in his very core.

[Location: Agreas]

Ajuka limps through the halls of the Agreas palace, bloodied and having trouble breathing. The sound of screams, gunfire, and explosions are audible from outside in the city. Within the span of half an hour, most of the inhabitants of Agreas have already been wiped out by just one man. He tried to fight back the intruder but his shear ferocity was just too much for Ajuka. Another explosion shakes the palace.

Most of Ajuka's demonic energy has already been depleted trying to fend off Doomguy. Now he barely has enough to mend his wounds.

He finally notices the lack of sound.

The silence is filled with a single gun shot as Ajuka feels a new wave of pain in his left leg, causing him to let out a yell. He topples to the floor as his leg gives out from under him. Mustering up the last bit of strength he crawls over to a wall and sits himself up. He looks down at his leg and sees that it is nothing more than a bloody stump up to his thigh. A blood trail leads to the rest of his leg along with Doomguy holding an assault rifle with a scope.

Ajuka looks up at his attacker just in time to see a boot flying towards his face. As it makes contact, his head stood no chance at withstanding the full force. His head caves in with a loud crunch. Blood and skull fragments fly to the side as Doomguy's boot smashes through the wall behind the headless corpse.

[Location: Lilith]

Riser Phenex, third son of the Phenex Clan, walks through the halls of the Underworld Capital. Passing the time before a mandatory meeting that was made earlier today. Whatever Ajuka wanted to talk about that would interrupt Riser's training for the next Rating game must be important. As he continues to walk he spots Zeoticus Gremory, father of Sirzechs and would-have-been-wife Rias. Zeoticus sees Riser and gives him a little wave.

Zeoticus: Hello there, Riser!

Riser: Greetings, Lord Gremory.

He stands in front of the leader of the Gremory Clan.

Zeoticus: So I assume you're here for this little meeting too, yeah?

Riser: I guess so. Who else is joining?

Zeoticus: My son Sirzechs, Azazel... Even Michael.

Riser: The leader of the Angels? What the Hell is this meeting about?

Zeoticus: All I know is that Ajuka discovered something earlier today and wants to talk to all of us about it. Beyond that... we might be a little early. Heh!

Riser: Speaking of which. Where is Ajuka? I would assume he would be here in Lilith.

Zeoticus: I'm sure he'll be here.

As they continue to converse in the halls, a homogenous city sized shadow suddenly engulfs the Capital.

[Location: Gremory Territory]

Sirzechs marches through the halls of the palace with his wife and child in tow. A look of anger plastered on his face.

Grayfia: Sirzechs, please, what is wrong?

He spots a guard and points at him.

Sirzechs: You! Gather every soldier and meet me in the court yard! NOW!

The guard runs off without a word to accomplish his task, now fearful of Sirzechs' new form of anger.

Grayfia: Sirzechs Lucifer, stop where you are right now!

He stops in his tracks and turns to face his wife. The look of anger on his face softens just a little.

Grayfia: Will you please, for the love of the Nine Circles, tell me what is going on?

Sirzechs looks into his wife's eyes and can see the worry in them. He takes a shaky breath and closes his eyes.

Sirzechs: It's my sister, Rias...

Grayfia: Rias? Did something happen? Is she hurt?

Knowing Sirzechs, Grayfia assumes that he might just be over exaggerating as an older brother. But this seems different some how. She can see some tears begin to well up in his eyes.

Millicas: Daddy?

Sirzechs: She... s-she's-

Azazel: Rias was killed, your Grace. Along with the rest of her Peerage and that of Sona's.

The trio turn around and see Azazel, leader of the fallen angels, along with a few at his side.

Grayfia: W-what? How?!... Who.

Azazel: "sigh" I don't know. I was dropping by to know if they have heard of any strange anomalies this morning. When I arrived... it was like a war zone. Kuoh Academy is completely destroyed. There were bodies-

He sees Millicas clutching onto his mother's leg and staring up at him.

Azazel: You get the idea. In short, when I got close to the Occult Research Club I sensed demonic energy being used inside. I believe that whoever did this, is now somewhere here in the Underworld.

Sirzechs: Hmmm... We gather our forces, we comb the entire Underworld, and we find whoever did this!

Grayfia: Sirzechs-

Sirzechs: This is not up for debate! Azazel, I expect you'll be helping as-

Their conversation is cut short as the ground shakes violently. It lasts for a few seconds as everyone gains their footing back.

Azazel: What was that!?

Sirzechs: I don't-

They are interrupted again with something crashing outside. Sirzechs tells Grayfia Millicas to stay and rushes outside with Azazel. The moment they do, they see something fly over their heads and crashes into a nearby building. Off in the distance another building is crumbling from the previous crash.

Sirzechs: What the Hell!?

Azazel looks around and sees something that causes his eyes to grow wide.

Azazel: Sirzechs...

He turns to where the fallen angel is looking. Miles from where they are, the site of a cloud of dirt flying in the air can clearly be seen.

Azazel:... That's the Lilith Capital, isn't it?

Without a word Sirzechs flies in the air and towards the Capital. Azazel quickly follows close behind. As they fly out of site, another chunk of boulder flies through the streets till it comes to a stop by crashing into a building.

As the dust settles and the boulder crumbles a bit, a green gauntlet punches through the weak rock and grabs a hold of any form of leverage to pull the owner out. Another arm holding a combat shotgun bursts out as well. Doomguy crawls out of the crumbling remains and hops onto the streets of the Gremory Territory. The sound of panic caused by the falling debris can be heard all around as he walks. He spots a group of ruffly seven demons talking to some fallen angels, organizing to deal with the property damage and panic.

Doomguy points his shotgun at them as the weapon lets out a faint hum. One of the fallen angels sees him coming and points him out. Just as the rest turn to see him, Doomguy launches a single projectile at the middle of the group. It detonates and tears through the group, sending blood and body parts flying. With that out of the way, he continues with his stroll.

[Location: The ruins of Lilith]

Sirzechs: Holy shit.

As the two arrive at the Capital, they bare witness to what remains of the area. The central building is nothing more than a crater full of crumbling buildings and rocks. The surrounding area is nothing more than a twisted landscape of cracked earth and ruins. A few certain buildings look familiar to Sirzechs.

Sirzechs: They... crashed Agreas into the Capital... My father was here.

Azazel: My God. I'm sorry for your loss.

Sirzechs: Are there even any survivors?

As a response to his question, a patch of rubble begins to shift. A shaky hand reaches out and catches their attention. They rush over and start digging the survivor out. As they clear the rubble, they reveal it to be Riser Phenex.

Riser: "grunt"

Sirzechs: Riser! You're alive!

He helps Riser on his feet. His clothes completely torn. Blood and bruises riddle his body.

Riser: "groan" Barely. That took nearly all of my demonic energy to keep me alive... What happened?

Azazel: We're under attack. Someone was able to bring Agreas crashing onto Lilith. You might be the only survivor.

Riser: Well, that's thanks to my Phenex heritage. But I'd rather not go through that ever again. Who is responsible for this? Khaos Brigade?

Azazel: We don't know. It's a high probability though.

Sirzechs: We can discuss this later. Right now we need to gather our bearings and...

He stops and sports a thousand yard stare.

Azazel: Sirzechs?

Without responding he continues to go catatonic. The feeling of great carnage now happening... back where they came. Sirzechs snaps his head to the direction of the Gremory Territory. Without missing a beat he uses his energy to fly back like a bolt of lightning, surprising Azazel and Riser until they try to follow suit.

[Location: Gremory Territory]

Burning buildings and dismembered bodies of both demons and fallen angels litter the streets behind Doomguy as he makes his way to the palace. A group of demons cut in front of him, blocking his path. One of them suddenly grows a pair and charges at him as the rest open fire with magical bolts. As he gets closer to Doomguy with a sword at the ready, he gets Spartan kicked right back at the group. He crashes into the group and causes them to momentarily cease fire. Doomguy pulls out his assault rifle, activates its side port and launches a burst of micro missiles at them, and kills them all. All without losing his stride.

Finally reaching the palace he reaches his hand for the doors, only to stop. Slowly he turns around and looks up in the sky. All he can see is several dozen fallen angels flying towards him. Moving quickly Doomguy pulls out his chaingun, activating its turret mode and extending the barrel into three spinning  tri barrels. Without delay he opens fire on the black feathery swarm. As he continues to shoot, both bullet shells and bodies fall towards the ground. Some continue to stay on course, others decide to shoot at him from the air, while few have taken the chance to retreat. No matter what, fallen angels just keep on fallin'. Pun intended.

With the last flying forces struck down, Doomguy holsters the now empty chaingun and pulls out his super shotgun. With a well placed shot on the large double doors' handles, Doomguy pushes them open with ease. Only to be greeted with the palace guards.

Deeper within the palace, Grayfia carries her son farther in as the sound of battle finally begins at the front gate. The sound of explosions and the foundation shaking lasts for a few seconds until all that is left is silence. Then the sound of heavy footsteps in the distance.

Grayfia: How?!

Millicas: Mommy, what's happening?

Grayfia: I-it's fine. Just hang on.

The heavy footsteps grow louder with each passing second. She stops in front of a door and opens it.

Grayfia: Millicas, I need you to listen very carefully to me. I need you to hide in here and keep quiet. Don't come out no matter what you hear. Understand?

The little boy nods his head. Grayfia places him inside and quickly closes the door. Just in time as Doomguy rounds the corner from the far end of the hall. The two stare each other down until he rushes at her with a rocket launcher. He fires a triple shot at Grayfia only for her to raise a magical shield, blocking all three rockets with ease as smoke begins to billow. As the smoke clears, she sees Doomguy charge at the shield with his shoulder. Without anytime to react her shield is shattered from the charge as she gets tackled across the hall.

Grayfia plants her feet to the ground and halts the charge. She grabs Doomguy by the sides and shoots her right knee at his chest, paralyzing him then throwing him to the wall to her left. He crashes into the wall as Grayfia charges at him with a fiery fist flying towards his head. Doomguy quickly dodges under it, steps around her, and swings his own fist at the back of her head as her fist is embedded into the wall. He kicks the back of her knee and forces her to kneel. Without hesitating she rips her fist out of the wall and swings it back at his legs, causing him to fall on his back.

Doomguy rolls away from Grayfia as she flies a few feet away from him as well. He then pulls out a gauss cannon, swings it around, and quickly charges it. Grayfia, not paying attention, spins around and prepares an energy blast. She is caught off guard when a high velocity steel flechette hits her square in the chest, sending her flying back. She tumbles across the floor for a second before quickly getting back on her feet, blood oozing from her chest wound.

Grayfia is met with a sucker punch to her jaw, stunning her for a brief moment. She tries to swing her own punch in retaliation only for her arm to be grabbed. Doomguy plants a foot on her side and starts to pull. She lets out screams of pain as the force of the pull rips her arm out to the elbow. Blood starts gushing out of the stump. She is momentarily distracted as Doomguy swings the severed arm around right to the side of her head. Her head snaps to the side. Doomguy throws a punch to the other side of her head, an audible crack can be heard as blood flies out of her mouth. He swings the arm again with all his might and sends Grayfia flying head first into a wall.

Grayfia's head smashes into the wall. Her body goes limp and slowly falls to the ground. Her head slides across the wall and leaves a trail of blood behind. Doomguy watches as her body finally slumps over on the floor. He tosses her arm at her body and pulls out a plasma rifle, turning around to leave.

*clamor*

He stops in his tracks as he hears a faint noise from behind a nearby door. He walks over and listens carefully for any noise. The faint sound of sniffling can be heard. He reaches for the doorknob and turns it. There is a gasp and a shuffling of feet running off. As Doomguy dramatically starts to open the door, a white object bursts through a wall and flies right at him. In a split second he is grabbed and forced through the opposite wall and out of the palace. Along with whoever just tackled him.

Just outside, Sirzechs stands in absolute horror as he watches his home burn. Azazel and Riser finally arrive and bare witness to the scene as well.

Riser: Oh no...

Azazel: Even the Khaos Brigade can't pull off an attack this fast.

???: That's because this isn't the Khaos Brigade.

The trio quickly turn to see Ophis, the Infinite Dragon God in her child form, standing close by as she stares at the fires with a blank expression.

Azazel: Ophis? Wait, do you know who's responsible for all of this?

Ophis: Nope. But it looks like we're about to find out.

She looks up. They follow her gaze and spot something flying in the air. In the skies, while in his juggernaut drive form, Vali has a firm grip on the struggling Doomguy. The captured then points his plasma rifle at his assailant's head and opens fire. Even while being attacked, Vali holds on even tighter. Doomguy continues to shoot until blue steam begins to emanate from a small port. Wasting no time he triggers the weapon's heat blast. This finally causes Vali to lose his hold on him. In half a second, Doomguy flies past him only to grab his leg. He quickly climbs onto Vali's back and grabs a hold of one of his wings.

Vali begins to fly around sporadically to shake him off. Doomguy holds on tightly and starts pulling on the wing. Within moments the wing finally gives way and they both begin to plummet towards the earth. Doomguy lets go of the severed wing and quickly grabs Vali by the throat as they fall, delivering multiple punches to his head.

Sirzechs and the others witness all of this from the ground as they watch them fall. The two finally hit the ground a ways away from the four, creating a plume of dust in their wake. The four rush over to them to try and help Vali. As they draw near they begin to hear the sound of several heavy hits from within the dust. There is a moment of silence until they hear what sounds like the revving of a chainsaw. A sudden screech of metal sounds off for a second. Then another one. This time lasting much longer. It finally seaces as a white helmeted head flies out of the dust. It falls to the ground and rolls towards them as they stand in shock.

Azazel snaps his head up to the settling dirt cloud with a fierce scold. The severed head of Vali begins to dissolve to bone as a faint energy flies towards an approaching figure from the cloud of dirt. It swirls around with the rest around Doomguy as he walks out. Because WAH DEIN VOKUL MAHFAERAAK AHST VAAL! He approaches them with a bulky weapon in his hand.

Sirzechs: You... YOU DID THIS!

His booming voice echoes through the air causing the other to wince from the volume, besides Ophis. The weapon in Doomguy's hands begins to glow green.

Sirzechs: You will pay for what you have done! No form of punishment will come remotely close to what you deserve!

Doomguy stops walking and stands a fair distance away from them. The weapon starts to emanate green static.

Sirzechs: You kill my sister. Kill my father, my friends, my subjects, and countless others! WHY!?

As a response, Doomguy points the BFG at them and fires a green bolt at them. Sirzechs, Azazel, and Riser dodge out of the way besides Ophis. She raises her arms to block the projectile.

Completely underestimating its power.

As the Argent energy blast makes contact with Ophis, it immediately expands and consumes her whole. She whips her head back as she lets out a blood curdling scream. The energy eating at her on a subatomic level. The green energy doesn't stop there as it continues to quickly expand and catch the other three in its blast radius. They fall to the ground and convulse in absolute pain. Riser however, because of his low demonic energy, suddenly disintegrates into a plume of green smoke. Dying on the spot. Azazel sports blisters and burnt flesh all over his body, but still alive. Sirzechs, along with Ophis, appear to be unaffected by the blast on the outside. They are still writhing in pain on the ground however.

Doomguy charges the BFG and fires it at them again. It lands in the middle of the remaining three and consumes them once more. This time Azazel follows in Riser's fate and evaporates to nothing. Sirzechs and Ophis begin to show signs of burnt flesh this time. Ophis lets out another scream of pain. This time much weaker. Sirzechs weakly looks up at Doomguy just to see another green shot fly towards them.

The third and finally shot hits Ophis again. This causes her body to mummify to nothing but skin and bones. Sirzechs, barely recognizable at this point, simply rolls onto his back and stares up into the open sky. Wondering how any of this could even happen from just one man. Suddenly silence consumes him as Doomguy starts to walk over to him. Sirzechs then begins to hear a strange demonic voice.

IN THE FIRST AGE, IN THE FIRST BATTLE, WHEN THE SHADOWS FIRST LENGTHENED, ONE STOOD. BURNED BY THE EMBERS OF ARMAGEDDON, HIS SOUL BLISTERED BY THE FIRES OF HELL AND TAINTED BEYOND ASCENSION, HE CHOSE THE PATH OF PERPETUAL TORMENT.

IN HIS RAVENOUS HATRED HE FOUND NO PEACE; AND WITH BOILING BLOOD HE SCOURED THE UMBRAL PLAINS SEEKING VENGEANCE AGAINST THE DARK LORDS WHO HAD WRONGED HIM.

HE WORE THE CROWN OF THE NIGHT SENTINELS, AND THOSE THAT TASTED THE BITE OF HIS SWORD NAMED HIM...

Doomguy stands over Sirzechs and grabs him by the neck, lifting him up in the air. He pulls back a fist as he stares into the demon's scorched face.

THE DOOM SLAYER.

He sends a punch directly to his head. The first hit causes Sirzechs's head to snap back, an audible crack resonating. The second shatters his jaw, nearly ripping it off. The third causes his head to be ripped off. Barely attached to what little intact skin he has left. Satisfied with this, Doomguy tosses the body to the ground and looks around. He looks back at the Gremory Territory and guesses that there still might be some demons left. He starts walking until he is suddenly consumed in a bright light, completely unable to move.

Michael: "sigh" This is greatly unfortunate.

A figure with blond hair and green eyes walks into Doomguy's vision, wearing fancy armor. He looks around at the bodies then back at Doomguy.

Michael: If only I had arrived sooner... You. I know not why nor how you are here. But I know that you can't be here. I will not kill you. But I can't allow you to continue this... genocide.

He waves one of his hands at him. This causes Doomguy to suddenly glow blue then spontaneously disappear, returning him back to his world.

Michael just looks at the empty air for a few seconds before he senses something. He turns his head over to the palace and feels a presence coming from it. He takes flight towards the building, leaving behind the bodies. Ophis's body begins to emanate small bursts of green electricity.

Once Michael makes it to a certain hole in a wall, he enters and makes his way to a half open door. He opens it all the way and peeks inside. He spots a small figure huddled in the farthest corner of the room. The child sees him and begins to shiver. Michael slowly enters the room.

Michael: Hello there. It's okay. Everything is fi-... going to be better.

Millicas:...

Michael kneels infront of the child, trying to make him feel comfortable after what has happened. Easier said than done.

Michael: my name is Michael. What is yours?

Millicas:.... You're an angel.

Michael: Yes.

He reaches his hand out to Millicas.

Michael: And I want to help you.

Millicas looks up at Michael. With great hesitation he reaches his hand out to his. Michael helps Millicas up and leads him out of the room. Before Michael can start a small conversation with the now orphaned child, the strange sound of buzzing can be heard from outside. He looks out of the wall and sees the body of Ophis floating in the air. Green mist and lightning forming around it. Without warning it releases a blast of energy similar to the ones before. Only this time, it doesn't stop expanding.

The green ball of energy begins to rapidly grow, and grow, and grow. Consuming everyting in its path. As it draws near, Michael quickly raises a magical shield around both of them as the green blast washes over them. The power and force, surprisingly strong, causes Michael to assert more energy to keep the shield up. Seconds go by as the blast continues to expand. Sweat begins to form on Michael's brow as the shield starts to crack.

But just as soon as it came, the explosion suddenly ends. As the area finally clears up of the green blast, Michael dissipates the shield and looks outside again. What he sees leaves him in shock and awe. Everywhere he looked, nothing was like it was before. Instead of green fields, blue skies and a city; there is nothing but scorched earth, blood red skies and ruins. Instead of a world closely similar to the Overworld, the Underworld looks like a barren wasteland. A Hellish landscape...

[Location: A different Hellish landscape]

As the streets of a city are filled with familiar demons, a lone imp scuttles onto a podium previously holding the skeletal remains of a dead demon. It suddenly runs off as Doomguy approaches with a super shotgun. He crushes a demonic skull under his foot and loads in two shells. He stares at a swarm of approaching demons and simply charges at them.

And then Doom 2 happens.

----

A/n: Whooo! I am tired! Hey Doomguy, how's it feel to be back in the old world?

Doomguy:

A/n: That's orgasmic to hear! It's 4:50 in the morning and I am going to sleep!