Just outside of the glorified club house, the others of the Peerage simply hangout by the entrance.

Yuuto: Soooo yeah. That guy.

Rossweisse: Just, damn.

Koneko: Yes, we get it!

Issei: I don't like him.

Asia: What do you mean?

Issei: Some Master Chief looking dude pops out of nowhere, kills a whole bunch of stray devils with no trouble what so ever, and Rias just brings him in without a second thought.

Akeno: You don't trust her judgment?

Issei: All I'm saying is that something about this guy just screams impending doo-

The sound of muffled gunfire and magical discharges can be heard. They look up at the schoolhouse and see flashing lights coming from Rias's office. Before anyone could move, a loud explosion resonates from the building along with the sound of wood splintering.

The whole group finally decides to rush in the building to her. As they scale up the building, they make it to Rias's office. What's left of it at least. The door is off its hinges, most of the furniture is destroyed, and there are bullet holes and scorch marks everywhere. Most noticeably is the giant ass hole in the wall leading outside with a bloodied and bruised Rias facing it while clenching her side.

Issei: What happened?!

With the help of Akeno and Yuuto she is led to one of the remaining intact furniture with Asia at her side to heal her.

Rias: He just "grunt" attacked out of nowhere! After my discussion he started shooting at me.

Asia: Why would he do that?

Issei: Oh, I'm gonna kick his ass!

At that moment a frag grenade flies through the wall and clatters on the floor.

Rossweisse: Look out!

Moving quickly, Rossweisse raises a magical barrier around them just as it goes off. The force of the blast however tears through the barrier and flings most of them back in a daze. With most of them disoriented from the blast, Gasper struggles to stand back up. From the hole in the wall Doomguy uses his thruster boots and makes his way through with assault rifle in hand. Being the closest to him, Doomguy casually walks to him as Gasper starts to panic. The marine quickly raises his boot and prepares to stomp the little cross dresser's head in. The last thing he sees are Gasper's eyes flashing red before stomping his foot onto empty carpet.

Confused he looks around and sees that everybody else is gone as well...

What the fuck happened?!

In the halls of the schoolhouse the devils run to the exit. With the use of Gasper's Forbidden Balor View they were able to get enough time to escape.

Rias: Quick thinking Gasper! Good job!

Issei: What the Hell do we do now?

Rias: We get our bearings and come up with a battle strategy!

Koneko checks over her shoulder and sees Doomguy barreling towards them through the halls. She skids to a stop, turns around, and rushes at him.

Rias: Koneko!

Koneko: Just keep running!

Heeding her advice they keep going as she charges at their pursuer.

Koneko: Let's see how tough you are, you son of a bitch!

As they get closer they each draw a fist back. Within range they swing their fists at eachother. As the two fists connect it causes a shockwave that shatters every window on their floor.

The rest of the Peerage rush out the front door and see Sona's Peerage and her sister, Serafall Leviathan, rushing over to them.

Sona: We heard an explosion! What's going on?

Rias: No time to explain! Get ready for a fight!

Genshirou: Why?

From the schoolhouse Koneko crashes through a wall from the second floor and flies in the air before tumbling across the ground towards them. Covered in blood, gashes and bruises. From the new hole in the wall Doomguy walks up and places a foot right on the edge while looking down at them all with an assault rifle in hand.

Issei: That's why!

Asia rushes to Koneko and begins to heal her.

Koneko: "grunt" Yeah. He's a lot tougher than he looks.

Genshirou: He looks like a fucking tank!

Doomguy steps forward and falls to the ground, feet first, with a thud. Issei activates his sacred gear.

Rias: Yuuto, Xenovia!

Without saying anything else they arm themselves and charge at Doomguy. Yuuto with Holy Eraser, Xenovia duel wielding Excalibur Destruction and Durandal. Doomguy sees this and, for whatever reason, holsters his weapon and stands there with his hands behind his back. As Xenovia is within striking distance she raises her blades and swings them down on his head. Only to be met with a swift parry from a revving chainsaw and a punch in the gut, stunning her.

Yuuto runs in from the left side and tries to go for a jab while the green marine wasn't looking. Doomguy, although not looking, saw this coming.

With a spin on his heel Doomguy was able to not only dodge the attack, but grab a firm hold of Yuuto's arm and guides the weapon right into Xenovia's midsection. She lets out a surprised and mostly pain induced gasp as Holy Eraser pierces her stomach. As the two are in shock of what has happened Doomguy, still in between them, swings his chainsaw around with all his might and cleaves both their heads off in one motion. Using up two slots of its fuel.

As their bodies fall to the ground, suddenly a fountain of rifle ammunition spews from their bodies for some reason... Not wanting to question it, Doomguy holsters his chainsaw and pulls out his rifle as the ammo somehow flies towards him.

After snapping out of the shock and horror of two of their friends death, the rest of the group prepare for a real fight. Determined to avenge them.

Before anything could be said and done, a port on the side of the rifle opens up. Revealing a set of six cylinders. A second later it begins launching dozens of micro missiles at them. As everyone was caught off guard, Rossweisse quickly takes action and raises a magical shield to block the deadly projectiles. The micro missiles stick to the shield for a second before detonating. With dozens of these hammering in, Rossweisse is having trouble keeping the shield up. Cracks begin to form on the shield as beads of sweat run down her face.

And just like that the shield completely shatters as the micro missiles fly right at them. Rossweisse, being at the front, becomes riddled with the missiles. They stick to her form for a brief moment. Without time to react, the last thing Rossweisse feels is the unimaginable pain of her body being torn apart from the multiple detonations all over herself.

With the Valkyrie dead and out of the way, the missiles begin flying at everybody else. They duck and cover as the missiles fly wildly all around them. Some of them missed. Others landed close enough where the devils are caught in some of the explosions. Sadly, no fatalities.

With dust flying in the air their vision is basically non existent. As the firing finally stops, Gasper looks up and can barely see anything. As the dust begins to clear just a bit he can see Doomguy standing in front of him with an assault rifle. Letting out a gasp he uses his sacred gear making his eyes glow red. As Doomguy now remains immobile, Gasper tries to hold out as long as possible until someone helps him. Suddenly a pair of gauntlets grab him from behind and twists his head violently. His neck lets out a loud snap. Gasper's body falls to the ground with a shocked expression forever plastered on his face. Doomguy stands over the Damphir's body as his holographic duplicate fades out.

A powerful beam of magic launches directly into Doomguy and sends him back a few feet. Across the field, Serafall launches magic from that wand she always carries. Doomguy struggles to stand up as he is bombarded with magic. Unfortunately he finally succumbs to the attack and falls to his hands and knees. The magic beam dissipates as the remaining group stays on guard.

Serafall: Ha! I got him!

Sona: Alright. Momo, Reya, Tomoe. Help Rias and the others back inside. Serafall, Tsubaki and I will handle this guy. The rest of you... take care of the fallen.

Genshirou: U-um, Sona...

She looks back at Doomguy and sees a strange mist emanating from his armor. He begins to shake violently on his hands and knees.

Not from pain though.

To him, it feels like he just downed every powerup he ever came across. He snaps his head up and stares them down. A red tint forming around his vision. And just like a bat out of Hell trying to escape his wrath, Doomguy runs at Sona's Peerage with his fists raised. Without any time to react he descends upon them.

Within seconds he manages to beat seven members of the Peerage to death with one punch for each of them, like some one punch man or whatever. He then comes face to face with Loup, one of the team's rooks. He swings a punch at him but Doomguy ducks and swings his own punch at the devil's left leg. Completely tearing it off from the hip. He swings another fist and punches Loup's head clean off. Blood flying everywhere. As the body falls Doomguy runs at Genshirou as he prepares his sacred gear. As it fully forms it is too late. A gauntlet is plunged through his chest and out his back before he could use it. He looks up at Doomguy and sees the life drain from his own eyes in the reflection of the visor. He is pushed to the ground as he bleeds out.

He spots Sona and makes a run for her. She raises a shield quickly only for Doomguy to shatter it with ease with both his fists. Sona is taken aback by this as Doomguy grabs her by either side of her head. With a mighty tear of a thousand Knight Sentinels he rips her completely in half. Her blood and intestines spilling out on the ground. Losing no momentum he charges at Serafall as she launches another spell in panic. Shrugging off the attack he grabs a hold of her outstretched arm, shattering her wrist. He swings her around and grabs her other wrist from behind her. He places a foot on Serafall's back and pulls. Tearing both arms off as she falls to the ground screaming in pain.

From the corner of his eye he spots Asia trying her best to heal Issei and Rias, both heavily wounded from the micro missile barrage. It looks like she is doing her best not to cry. With little powerup energy left, Doomguy discards the bloody limbs and runs at them. However, he is tackled by Koneko from the side. That doesn't even budge him. In fact he grabs a hold of her and slams her on the ground, creating a crater. Wasting no time he raises a fist and embeds it in her head. Killing her instantly. A mist of blood flies through the air.

This causes his powerup to finally wear off as the mist dissipates and his vision clears up from the red tint. He pulls out his rocket launcher and turns around to face the trio. Only to see a floating Akeno with a VERY pissed off expression. Lightning shooting all around her.

Akeno: You'll pay for this!

She launches several lightening bolts at Doomguy. He runs around dodging the attacks as he locks onto her with the launcher. Locked on, he launches a trio of rockets at her. She barely dodges the first but gets hit by the other two. Not letting up he launches another trio of rockets. All three hitting their mark. Consuming Akeno in the explosion. As she falls to the ground, Doomguy sees that she is flashing blue. Knowing full well what to do he charges at her. As she turns orange he swings a leg right into her side. Multiple snaps are heard. She is momentarily airborne as Doomguy throws a punch at her head. Akeno's skull shattering into a bloody mess.

As he lets the body hit the (tss tss) floor, Doomguy pulls out his gauss canon and aims the scope at Asia's head. Once fully charged, Asia quickly faces him. The last thing she sees is a bolt of energy hitting her square in the head. Not only does her head explode but her upper torso gets ripped apart from the force. The rest of her body flies back in a cloud of blood.

Rias: ENOUGH!

She stands up and launches a powerful bolt of magic at Doomguy. Sending him flying back and crashing into Kuoh Academy. Long evacuated at this point. Rias flies into the air and sticks both her hands out over her head. A ball of red and black energy forms in her hands, quickly expanding. Growing exceptionally large she throws her attack, Extinguished Star, at the school. An explosion consumes the entire academy in a ball of fire. Once it settles down the only thing remaining is a large crater filled with burning piles of rubble.

Rias descends to the ground and falls to her knees. She shifts her gaze down as tears begin to stream down her face. A faint sob escapes her lips.

Akeno, Gasper, Yuuto, Sona... All of her friends. All that remains is Issei...

A strange red ball flies out of the crater and lands next to Rias. Catching her attention. It suddenly emits a pulsing red field around her. She lets out a blood curdling scream as she is consumed with intense pain. The feeling of fatigue washing over her as well. As the siphon grenade finally powers down, Rias collapses to the floor with labored breathing.

Doomguy leaps from the crater and lands in front of her with a super shotgun. Rias tries to get back up, but feels a barrel placed at the back of her head. Doomguy empties both barrels in her head, creating a fountain of blood in the end. He looks up and sees Issei, the last of his Peerage, on his hands and knees near the schoolhouse. Doomguy takes a brisk walk towards him.

Issei: You...

Doomguy reloads his shotgun.

Issei: You killed all of my friends.

He stands over Issei.

Issei: Damn you.

He aims his shotgun at his head.

Issei: DAMN YOOUU!

A burst of energy launches from Issei and sends Doomguy flying back. Issei stands up as he is consumed in a red aura. His whole form transforming into it's Juggernaut Drive form.

The end result is that of a large red humanoid dragon staring down Doomguy.
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He's killed bigger.

Doomguy raises his super shotgun to fire only to be instantly tackled by the Red Dragon. It lifts him in the air and simply tosses him over near the schoolhouse. The Red Dragon flies towards him and sucker punches him with enough power to send him flying into the building. Doomguy crashes into the building as a pile of rubble falls on top of him. He digs his way out only to be greeted with an upper cut. Punching another hole in the Occult Research Club with his body.

Flying through the ceiling Doomguy lands in the office. Moving quickly he gets up and pulls out his plasma rifle. The Red Dragon flies through the new hole and spots him. Right on queue Doomguy launches a stun bomb directly into it's chest. Instantly it starts convulsing from the electromagnetic effects. Completely immobile. Doomguy holsters the rifle and pulls out the chainsaw, running at the Red Dragon as it revs up. As he is within range he swings the chainsaw down on it. The Red Dragon musters up enough energy to swing it's left arm to guard. As chainsaw and arm make contact, blood and sparks start flying everywhere. More importantly the chainsaw is tearing through the arm.

Within a second the arm is cut in half and the chainsaw is now embedded into the Red Dragon's shoulder. It lets out a roar of pain as the teeth of the chains rip through it's flesh. Sawing back and forth, Doomguy embeds the chainsaw down the the Red Dragon's midsection. Blood pooling up on the ground. He pulls the chainsaw out of it's body and watches as it falls over motionless. Suddenly it's body begins emitting a faint glow for a few seconds as streams of light fly around Doomguy. The sound of harsh winds can be heard. As the light fades, all that remains is a skeleton of the Red Dragon. In the end Doomguy hears chanting as text forms on his HUD saying DRAGON SOUL ABSORBED. Because DOVAKHIIN! DOVAHKIIN! NAAL OK ZIN LOS VAHRIIN!

Doomguy suddenly hears a faint hum from behind and turns around. He sees a faint glow of a pentagram pulsating on the ground. This strangely reminds him of the end of Kadingir Sanctum. If there was a way to activate it, it might lead him to Hell. Or at least this world's version of it. But how?

At that time Doomguy hears what sounds like whimpering from outside... He walks out of the club house and over to the only demon he accidentally, but thankfully, didn't kill.

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