I do not own Highschool DxD or The Avenger Films. One-shot.

Three years before the discovery of the Red Dragon Emperor (beginning of the series)…

Two days after The Battle of New York…

"Lady Leviathan and Sona Sitri, I thank you both for meeting with Rias and I during such short notice. I know your schedules are full, so I will endeavor to make this brief." Sirzechs Lucifer, one of the four devil kings, expresses with great regard as both devils enter the meeting room, filling the occupancy up of five as the two visiting personages are escorted by Grayfia Lucifuge, the queen in Sirzechs's peerage and his wife.

"It is no trouble at all, Sirzechs. As a matter of fact, I actually want to thank you because now I get to spend some time with Sona. Can you believe she never calls or visits me. When we first saw each other right in front of you castle, she didn't even say hello to me. Can you believe that? Sona, just tell me how much you miss and love your big sister." Serafall Leviathan overzealously mumbles without taking a breath her words mesh together into one long, run-on sentence.

"You are a devil king with much responsibility. You have a lot of duties to tend to and I don't want to bother you when you are working." Sona attempts to vindicate herself for her lack of communication, even if her reasoning may not be entirely true, but even if she were to explain that her sister, a devil king, smothers her with her affection that Sona finds it irritating.

"So I'll make time for my little sister. Don't you know I always have time for you, Sona. All you have to do is ask and your big sister will be right at your side." Serafall counters with a whine, grabbing onto and holding Sona's hands in hopes to convince her to call her more often, but the Sitri heiress only looks away.

"Ladies, while I do enjoy your banter as much as the next devil king, I believe we should get down to business." Sirzechs interrupts, motioning his hands in a downward motion in attempts to calm the other devil king down. As soon as Serafall stops jumping up and down while holding on to Sona, both sisters look at each other, the elder with blissful mirth oozing from her eyes, and the younger with annoyed exhaustion. Sona takes in a deep breath—a breath that she really needs-before she frees herself from her sister's clutches and walks forwards towards the table, taking a seat next to her beloved friend/rival Rias Gremory. Serafall can only express her dismay of her sister's disregard of her in a measly pout.

"Your so mean, Sona. What happened to the cute little sister who would run into my arms every time I came home?"

"I am not a child anymore! And don't go around saying such nonsense!" Sona seethes with frustration, all the while Rias silently laughing to herself. With nothing more to say, Serafall cross her arms pouting and walks—stomps—her ways towards her seat to the right of Sirzechs.

"Sona, it's been a while since we last saw each other." Rias begins after calming down from Sona's humiliation.

"It has only been two days since the beginning of our high school lives, Rias. I hardly count this as a reunion occasion."

"You never know. We don't have classes together and won't probably see each other." Rias continues.

"You may be right, but we will eventually cross paths with each other, whether in the hallways of school or in the battlegrounds of a Ratings Game." Sona interjects, a smirk coming across her face.

"I look forward to either occasion, Sona, but enough about such matters. How is Tsubaki doing?"

"Tsubaki is doing fine, as well as my other peerage members."

"How nice, Akeno, Kiba, and Koneko are doing fine themselves."

"I see, so how are your endeavors to create the Occult Research Club going? I know you only need one more person to fulfill the five-person requirement clause?" Sona inquires.

"It's coming along, but the current student council president isn't making it easy."

"Just you wait. Once I join the student council, I'll become the next Student Council President, as it should be." Sona exclaims, adjusting her spectacles as the light reflects off them.

"I'll wish you luck on such an endeavor, though I know you won't need it." The two devil heiresses continue to small talk with each other for a few more moments before Sona begins to shift the tone of her voice to better suit the current situation regarding their presence in Sirzechs' castle.

"I believe that is enough small talk for one day, Rias. Tell me, do you know why your brother called us here?"

"I don't need my brother to tell me what this impromptu meeting is going to be about, though it shouldn't take long to figure it out seeing that the entire human world, the Angels, and Fallen Angels, and us are still in shock about the series of events that have transpired." Rias exclaims, her vibrant smile slowing turning serious and solemn.

"I assume you are talking about that event." Rias's silence to Sona's question is enough confirmation for Sona, to which she redirects her attention forward as Sirzechs takes his seat next to her older sister with Grayfia standing off to the side behind her master/husband. The moment Sirzechs takes is seat is the moment the entire room becomes dead silent with nothing but the sounds of a clock ticking away being audible to all the occupants of the room.

"I thank you ladies for joining me on such short notice, but there is something I wish to discuss with you. Lady Leviathan already knows this, but the devil kings will be holding a meeting tomorrow with multiple high-ranking devils to discuss the recent turn of events, and seeing that you two will not be attending, I figured I should at least clue you in in onto the nature of the meeting." A silence lingers after his explanation for everybody already knew what this impromptu meeting and the official one are going to be about.

"I assume these two meeting are in response to the recent events that have transpired in New York?" Rias voices in her thoughts.

"You catch on quick, though it should be obvious at this point. The entirety of the Underworld is at unrest due to the sudden arrival of these otherworldly invaders. Not only that, but the people desire answers as do we, but there is nothing substantial we can tell them that they don't already know."

"To be honest with you both, we really don't know what to tell them." Serafall adds in, her demeanor quickly changing from her playful to dead serious almost instantaneously." The moment Serafall finished speaking, Grayfia silently begins chanting a spell, causing multiple magic screens to appear around the room, all yielding a blank, white screen.

One by one, each screen present clips of memory acting like footage of the events that occurred in New York. Everyone in the room can only watch in silence and horror as the materialized screens only show the carnage and destruction of the city that never sleeps by the mysterious alien invaders, a reptilian-like, humanoid-shaped creatures with advance energy-based weaponry with cybernetic body parts attached to them spewing out of a portal high above the city, coincidentally right above Stark Tower. One screen shows the civilians vaporized by the invaders as they shoot their weapons into large crowds of fleeing civilians, quickly making quick work of them. Another screen depicts multiple aliens flying around in their flying, metal chariots blasting away at the streets and buildings. The next screen shows the destruction of a skyscraper as a colossal, floating, armored leviathan-like creature pierces through its mid-section, deploying alien soldiers off its side onto buildings, with civilians caught in the debris underneath and crushed. Even with the human army deployed, they were no match against the hostile invaders as they swarm the city with their advance weapons with their numbers being their most dangerous aspect.

"Once we caught word of such destruction, all of the devil kings ordered for a massive mobilization of our armies. We were ready to move at a moment's notice, but such an action will only cause more problems. Despite the fact the humans would know of our existence, I have no doubt the Fallen Angels and Angels have also come to the same conclusion of mobilization. If all three factions' armies were to confront each other at a time like this, it could perpetuate yet another war, and war is the last thing we need seeing all sides are still recuperating from the loses." This is very valid concern. All three factions are not up to their full strength due to the sheer amount of their forces loss in the last war and have since been in a status quo with still high tensions between all three sides. Skirmishes to occur on occasion, but if their armies were to meet, then it would be more than enough to instigate another war.

"Yet, war still came, and the humans were the ones who had to pay for it." Rias interjects. "Tell me Brother, if New York was lost, and the invading army continued to pillage through the surrounding area, were you just going to let them in fear of yet sparking another great war."

"If New York was lost, then we would have no choice but to send in our own armies to combat the threat and risk yet another war with the Angels and Fallen Angels. However, we were spared from such a fate all thanks to the efforts of a collective few."

Each screen then begins showing footage and images of six unique individuals who, against all odd in the eyes of the five devils in the room, successfully fended off and defeated the invading army, saving New York.

Rias turns her attention towards the man of his country sprinting straight towards the danger, throwing his seemingly indestructible shield at the invaders and engaging in close combat, and despite the odds, this man who wears his country's colors stood his ground and put down whatever invader stood in his way by sending them flying with his punches.

Sona has her attention fixed on the very-talented woman in black. Wearing a very tight, black jumpsuit, the woman engages the invaders with multiple fighting styles, weaving through her enemies in a well-displayed intricate dance. The invaders could not keep up with her fluid movements she moves around in complicated maneuvers too hard for her opponents to keep up. She even manages to hijack one of their chariots in mid-flight, yet another impressive achievement for a human.

Serafall watches the screen with the man on the rooftop, using nothing more than a bow and special arrows to take down the chariots. She finds it unbelievable the accuracy this man has with his bow and arrow, making other archers who use magic look like beginners. His skill and prowess this man possesses is so advance he doesn't need to a visual to shoot his enemies down, further separating himself from other archers Serafall knows.

Those are just the three who look normal compared to the other half of the team.

Sirzechs has his eyes on the screen depicting the giant, green monster with limitless strength and limitless rage. Nothing could stop such a juggernaut as he charges through the invaders, their weapons doing absolutely nothing to hinder his momentum, ravaging through whatever stood in his way and producing enough force stop the momentum of a leviathan. The angrier he becomes, the more powerful he becomes.

Grayfia, while maintaining her spell, looks over towards the screen with the man in the ironclad suit. The man in iron flew around at incredible speeds, using the arsenal he has integrated into his suit to shoot, vaporize, or annihilate the enemy. Shooting of energy out of his hands, launching tiny missile hidden away in various parts of his suit, even letting himself be devoured by one of the leviathans to kill it from the inside when attacking on the outside did nothing.

Another screen portrays the last member of this team; the god of thunder himself: Thor. All the devils recognized this Asgardian god and know just how powerful he is. They all knew Thor was holding back for the sake of not destroying the city. Even if he was using a fraction of his power for whatever reason, he still managed to hold his ground.

Though they may all be different, there is one irrefutable fact is established here. As far as the humans go, they are nothing short of heroes.

"I know you two have been watching the news, so I know you know what this team of individuals call themselves." Sirzechs begins as the multiple, magic screens fade away as Grayfia finishes her spell.

"The Avengers." Rias completes.

"'Earth's mightiest heroes,' is what the people are calling them." Sirzechs continues, looking over to Serafall as if signaling her to continue for him.

"A title they deserve seeing these six individuals managed to defeat Loki." She reveals.

"What?!" Both devil heiresses shout out in surprise and shock. "Are you referring to the God of Mischief from Asgard?" Sona exclaims.

"The very same."

"We don't know too much about the details, but a couple of years ago, there was some business that occurred in Asgard, and there was… a falling out, and as a result, Loki vanished only to reappear on Earth leading an alien army from who knows where." Serafall explains.

"Not only do the humans know about the existence of Asgard, but all of us-devils, angels, fallen angels, Asgardian, etc.—know about the existence of life beyond Earth." Rias couldn't help but detect a bit of disappointment in her brother's voice. "For centuries, devils, angels and fallen angels have gone to war with each other over many reasons, disagreements, and more, but control over the Earth was one of them. We thought we along with the other mythologies were the only living beings in the universe, but that way of thinking has long been shattered, leaving us with more question than answers. We may be powerful, but it does make me think just how insignificant we are compared to the life beyond our solar system." Silence is all that can be found in the meeting room as each person takes their time to sink in such a thought. All that arises from thinking is a hanging sense of melancholy permeating about the room with Rias and Sona lost in deep thought and Sirzechs and Serafall having multiple questions rising up with no way of answering them… At least, not all of them.

"Loki is currently in custody and is refusing to tell Odin anything about where he was and where he obtained such an army, so I don't think we will be hearing anything from him." Sirzechs continues. "However, there is still one person who can at least answer some of our question in regards to this matter."

"And who would that be?" Sona asks.

"Someone like me." An outside voice answers Sona, causing Rias and Sona to turn their attention towards where the voice came from, which is the door they entered from.

"I think it is about time you come in." Sirzechs replies to the voice but doesn't saying anything afterwards other than the sound of footsteps tapping on the floor, steadily increasing the noise as the person comes closer. The doorknob jiggles before the door opens, revealing an individual Rias, Sona, and Serafall have never met before. This person is an African-American, bald, and looks to be in an advance age in his life, wearing nothing but completely black boots, black pants, black shirt and a black overcast extending down to his knees with his most prominent feature being the eye patch over his left eye.

"I have to say, I never been much of a believer, but me being down in hell… well… it's a start. Makes me wonder if saying "see you in hell" actually holds some water." The African-American elderly man muses as he approaches the four devils at the table, his singular eye gazing over all the individuals, taking a brief, dedicated amount of time to observe/analyzes the current occupants with a sense of weariness and distrust, earning the African-American man a glare from the crimson-headed heiress for she detests how he sees and dismisses her quickly.

"And who is this?" Rias demands, the tone in her voice vibrating with minuscule hostility but not enough to insult the African-American for he has dealt with worse.

"And here I thought I was a guest, but it is not like I haven't dealt with prideful individuals such as yourself." His voice comes off as condescending, causing the crimson-headed heiress's eyes to glow red.

"Rias." The elder brother and devil king interjects, his voice sounding more of a derivative of how he normally speaks albeit a bit more forceful, causing the Princess of Ruin to force herself to relax, but only because her brother/devil kings wishes for it. "Please continue, but do exercise caution." The old man turns to face Rias.

"Nick Fury, Director of S.H.E.I.L.D." he answers as he takes his seat in between the devil kings and the two heiresses. "And in case any of you are wondering, it stands for Strategic Homeland Intervention Enforcement and Logistics Division. I won't go into the details, but all you need to know is we are a counter-terrorist organization assigned to keep global security."

"Director Fury, I would like to extent my thanks for coming to the Underworld to talk to us in such a problematic time."

"Yeah! It means so much taking time out of your busy schedule to meet with us!" Serafall adds on.

"Let get something straight here, your highnesses. I only came to Hell to assess what exactly we—as in humans—are dealing with. Angels, Devils, and Fallen Angels. Talk about fantasy becoming reality, but I guess anything is possible since Stark created his first suit, or perhaps even beyond that during Roger's time. But I do have to say, for a place that is supposed to be filled with lava and brimstone, Hell doesn't seem so bad. Makes me wonder if all the people I killed who deserved to die all have it good here."

"I can assure you that those who are considered sinner do go to Hell. We made some adjustments in Hell to look more like the human realm for those who are reborn as devils." Sirzechs clarifies.

"That's very considerate of you guys… for devils." Fury tacks on towards the end, earning the malice of Rias and Sona. "People are usually taught that angels are the good guys and devils the bad guys, so sorry for the cold shoulder, but before I am certain, this is how I am going to be." Fury explains, to which both devil kings can understand where he is coming from, but one person in particular dislikes the tone in his voice.

"Do you realize who you are talking to?" Rias asserts herself, slamming her hands on the table and arising from her seat.

"I do, but seeing that Heaven and Hell exist only means a new layer of problems; problems I am going to have to deal with if you guys can't play ball together nicely, and believe me when I say this, I have bigger problems to worry about than some shaking armistice that can break the moment somebody gives a nasty look." He states, his voice stern and serious mixed in with irritation, looking directly at Rias before shifted his single-viewing eye towards Sirzechs. "You brought me here, revealed your existence to me, and give me a nice train ride to your castle. I don't need my other eye to know what is going on here, so tell me, what is it that you want to know?" Seeing that Fury has directed his attention elsewhere, Rias takes her seat once more, though she loathes the fact how easily Fury disregarded her. As the Heiress of the house of Gremory, this is nothing short of an insult, but with two devil kings present, it would be unwise and childish to make a scene regarding such trifling matters, so all Rias can do is swallow her pride, sit, and listen to what the Director is going to share with them.

"Getting down to business I see, Okay. For starters, why don't you explain what exactly were those things you encountered?" the devil king Lucifer begins.

"Aliens, your highness." Fury immediately answers, though the response only awards him a blank stare from everybody and a scornful look from Rias. Fury exhales. "They're called the Chitauri, some sort of reptilian-like, machine-augmented species."

"Where did they come from?" Serafall asks.

"From space. What do you think? Contrary to what people might believe, I don't know everything, and if I did, I wouldn't be here, now would I." Serafall may have ignored his rude response, but Sona is going to remember that. her rage does eventually subside in time. "What I can tell you is that they came through the portal courtesy of the Tesseract."

"The Tesseract." Sona repeats.

"The cosmic cube. An energy source that, with some research, can provide unlimited power."

"Have you ever heard of such a thing?" Rias asks.

"Can't say that I have. Do you know where this Tesseract comes from, Director Fury?"

"If our records our correct, it came from Odin's vault and left it on Earth for unknown reasons about a thousand years ago."

"I see, I will have to ask Odin about that then." Sirzechs concludes, allowing for Serafall to ask her questions.

"What were you going to do with such a power?"

"For starters, to solve the Earth's energy crisis. I don't know how it works down here, but power is something that we desperately need, and the Tesseract provided the solution to the problem, so we started looking into it; see if we can make something of it. That is until those Asgardians leveled a small city in what could be considered a bar fight to them. Needless to say, we discovered not only were we not alone, but we are stupefying defenseless, which is why the Council shifted their views into creating weapons of mass destruction by studying the cube and taking a look at the weapons powered by the Tesseract created during World War Two by H.Y.D.R.A."

"And it is because of these tampering with a energy source you don't fully understand that brought the Chitauri to our world." Rias accuses.

"It is not like we don't have many options. We did all of this just to protect ourselves from the dangers of what lies beyond Earth… and maybe even on it as well." Fury lowly states, looking at all the potential danger each of these devils possess; all of which noticing the underlying assumption Fury is making, causing slight irritation and anger within all of them, all at varying levels. "We were successful before. We managed to revive and create a weapon similar to the Destroyer."

"The Destroyer?" Rias repeats.

"It is an Asgardian Automaton built to protect the weapons stored in Odin's vault. Devils such as yourself or Sona would have a hard time killing such a enchanted Agrarian automaton powered by the Odinforce." Sirzechs explains, looking over at Fury to allow him to continue.

"But to be honest, I never really had all of my bets on that card. Instead, I placed all of my chips on something a little more old fashioned if you catch my drift."

"The Avengers." Serafall answers.

"A group of unique individuals who can fight the battles we never could. I had somebody working under me believing in such an idea. Even up to his death, he believed in such a team. And it looks like it worked. The Asgardians, Devils, Angels, Fallen Angels, you guys, everybody saw what happened in New York and know."

"Know what?" Sona asks.

"The Avengers… they're dangerous, so if you guys ever plan on invading the surface world for whatever reason, or if the Fallen Angels beat you to it, I'd think long and hard if that's the right move." Fury issues, confident in the words he has explained to the current occupants.

"Director, you are in a room with heirs to the house of Gremory, hose of Sitri, and two devil kings. I would advise you to not threaten us in our own home." Rias sternly warns.

"Oh, it's not a threat. It's a promise. If that is all you guys wanted to talk about then I'm leaving. Have fun ruling Hell or whatever happens down here." Fury rises up from his chair and begins walking over towards the exit, not before stopping at the corridor and turning around to face the devils in the room.

"Oh and one more thing. Gremory, Sitri, I know you two live on Earth and go to Kuoh Academy, so I will be having my eye on the both of you." He states, looking intently at Rias and Sona before finally leaving.

"Grayfia, make sure Director Fury makes it back to the human realm safely."

"Yes." And with that, both Grayfia and Fury leave the room, leaving only the two heiresses and devil kings to themselves.

"He may be a human, but he is so scary." Serafall whines, rising up from her seat and quickly maneuvering towards her little sister.

"What do you have to be afraid of. You are stronger than him and a devil king." Sona argues, placing her hand on Serafall to keep her at an arms distance away. While that is happening, Rias makes her way toward Sirzechs, her expression only conveying her discontent with the entirety of the meeting.

"I don't like him very much." Rias states.

"I know."

"How much did you tell him?"

"Just enough to understand the situation we are all facing, but I get the feeling he has a lot more information he is not telling us, and I intend to educate myself about his secrets."

"Do you think he will just tell you if you ask nicely."

"I already did, and he said no. Regardless, I will make future efforts to learn more about him, but for now, Lady Leviathan and I must prepare ourselves for tomorrow's meeting."

"Wow, if this city didn't look like crap before, then it does now, but that's what you come to expect when it has been invaded by aliens, wouldn't you say?' Kuroka shares her thoughts with her allies as all of them are standing on top of an attacked skyscraper surrounded by debris of other buildings, along with a dead Chitauri Leviathan perched on the same skyscraper as them.

"I only wish I could have been here to join the fray. I could have been fun. I heard Loki was thrashed around like a Ragdoll by the Green Giant" Bikou responds.

"A God such as Loki... give me a break." Kuroka answers, not too convinced on Bikou's claim.

"Tell me Vali, would you have wanted to be here during all that chaos. It would have been a perfect time to cut loose on your powers." Bikou inquires as he relocates near the dead leviathan and begins poking it with his staff, Kuroka joining him as she picks up one of the Chitauri's energy weapons.

"None of these invaders can even begin to match my power. I want a challenge, not something to pass the time." Vali answers, looking outwards towards destroyed New York.

"If you want a challenge so bad, how about the Avengers? They are not called 'Earth's mightiest heroes' for nothing. Perhaps that jolly green giant can satisfy you for the time being. I know I would be satisfied." Kuroka chips in, her finger squeezing the trigger of the weapon, sending out an energy projectile.

"I doubt even the Avengers can keep up with me. The only person who can is the wielder of the Red Dragon Emperor's powers, and he hasn't been found yet."

"If the Red Dragon Emperor hasn't been found yet, then let me ask a different question. Somebody must have given Loki this army. Who do you think gave him an army, and also why? I doubt even Ophis knew about the existence of extraterrestrial life. None of us did until two days ago."

"Where are you going with this?"

"Nowhere in particular, but apparently, this is a big universe. Who is to say there isn't something or somebody out there who is as or more powerful than Ophis or Big Red? Perhaps some sort of Dark Lord or Mad Titan. Ophis and Big Red might be the most powerful Dragons out there, but what about The Most Powerful Being in the Universe who's power is limitless compared to them?" Kuroka goads, dropping the weapon in her hand to the floor and joining Vali on the side of the roof staring out towards New York.

"Don't talk about such nonsense. Ophis, a dragon God himself feared, and Big Red, the dragon of dragons, are the two most powerful being I know. You talk about hypotheticals, but here's one. Who is to say the most powerful being is here on Earth right now?"

"Just a though for you to pick on. Anyways, we better start moving. I can already smell people coming this way. Plus, these things stink."

"Probably because you fired that weapon." Bikou accuses.

"Maybe, or maybe not. The humans here do have a lot of cleaning up to do, and it could take weeks just to get rid of the rubble." Kuroka refutes. All three members gather around each other as a magic circle appears under their feet, quickly rising up only for them to vanish off to a different location.

Somewhere in the galaxy, far away from Earth, lies a thrown with a lone, purple figure sitting on it, his head resting on his forehands, contemplating about what the Other has stated about the humans. He sat upon his words for many hours, only for him to arise from his seat, looking outward towards the vast emptiness of space, an insidious smile slowly forming on his lips.

Court Death… he contemplates to himself.

What do you think? Reviews are encouraged.