somewhere in the darkest reaches of the netherworld, a castle looms over the desolate regions of the land. This castle belongs to the most powerful Tyrant that is feared all over countless Netherworlds, Tyrant Overlord Baal.

Inside the castle, a meeting was being held in a dimly lit room as several individuals each bearing their own factions and clans had come together to address a problem in a certain world... involving 2 factions who had disregarded a promise they had made with them.

consisting of this individuals are Enma Daiou, the true leader and King  of the Yokai World. Husband to Yasaka who is acting as the representative in his absence and Father to Kunou his little princess and next in line to inherit his place. Enma had an angered look on his face and his deadly aura is leaking ready to kill the Devil Faction after hearing a certain news delivered to him.

Enma: THOSE FILTHY DEVILS! HOW DARE THEY MASSACRE A PART OF MY FACTION AND HAD THE GUTS TO CLAIM TWO SURVIVORS AND MADE THEM THEIR OWN! I DEMAND THEIR BLOOD RIGHT NOW FOR WHAT THEY DID!

Enma was beyond furious as he was told of what happened to the nekoshou clan that was wiped out by the devils due to their unique energy called "Senjutsu" which is capable to wipe even a Maou class devil. He was a good Emperor to his people and loved him beyond words. he was also friends to the mother of the two surviving Nekoshou and he is out for blood to what they did to his friend and his nieces.

???: Calm down Enma you are in the presence of the others! We are Furious as well that is why we are holding this meeting!

The one trying to calm down the furious Yokai Emperor was none other than Merkabah, the chariot of God and a good friend to the Angel Faction lead by Michael who is the representative while God is healing of his injuries in a separate Realm with Metatron acting as a guard.

Merkabah: Those Filthy Degenerates had truly Fallen for their Greed and Pride so much that they would even try to force others to become one of them. They even involved the human race which we specifically told not to and disobeyed our warming. What do you have to say to your so called Faction Lucifer?

Merkabah looked to her side as she sees Lucifer groaning and massaging his forehead because of his faction. during the war both God and Lucifer had survived but kept hidden their status from their factions but only Michael and his sister Gabriel knows the truth of the war's outcome and had kept in touch with them ever since he made the promise with them.

Lucifer: I have no qualms to say to what had now been happening in my absence. even after HE had told the three to be at peace with each other and try to get along and never ever leave their place. i am not surprise that my faction would even betray and contradict that promise leading to these events now.

He then looked at the others as he had an angered expression to his face and was plotting what to do to his faction and the one who claimed his title.

Lucifer: But one thing is for sure... I would personally teach that "Faker" who claimed my title and proclaiming himself as the savior of my faction not to mess with the TRUE RULER OF HELL and all the DEVILS! 

As Lucifer proclaimed his speech and what he will do. two individuals who are watching the scene from the sidelines had a sour and disgusted expression towards the two factions that had dared to break the vow they made. this two are none other than Tyrant Overlord Killia and Dragon God Bahamut.

Bahamut: Cant' believe those devils would resort to these kinds of things. makes me wonder why we let them roam any longer in that world especially after they are now hunting humans with sacred gears meant to protect humanity from them and not to be used as pawns in their games. What do you think will happen now Killia?

Killia: I'd say we permanently erase them from the face of hell for what they did and to think they would come up with this so called "Peerage" and saying they are part of their family but others think not and only wanted power or enslaving the Human race. But after what happened and upsetting the Balance of that world... I would gladly wipe their race from existence... especially of what they did to those two...

Killia clenched his fist remembering the two individuals he became close with and their mother ever since being friends with Enma. He swore to himself to make the devil faction pay for what they did to the innocent clan that was meant to not be disturbed and the Humans who were forced to become one of them. He leaked out his Aura as the others looked at him with his eyes full of rage and him emanating a pure and unbridled killing intent whose ready to claim lives.

Everyone was very upset until one presence shut them up and they turned to the being who is the feared Tyrant all over countless Netherworlds... Tyrant Overlord Baal.

All: Tyrant...

The Feared Tyrant looked at them as he leaked out his deadly aura whose sending chills to the individuals who are now in his presence.

Baal: I have one Order to give to all of you... I WANT ALL OF YOU TO GO TO THAT WORLD AND SHOW TO THOSE TWO FACTIONS WHO THEY ARE DEALING WITH AND WHAT THEY SHOULD NOT HAVE DONE! DO I MAKE MYSELF CLEAR! IF THEY RESIST THEN KILL THEM ALL!

All: YES TYRANT! IT SHALL BE DONE!

The Tyrant only huffed before motioning Killia to come with him while the others left to go to specific places in that world. as the two Tyrants made their way on an empty Room Tyrant Baal faced Killia with a stern expression.

Baal: I have an order for you Killia. one of utmost  importance

Killia: And what would that be Tyrant Baal?

Baal: I want you to go to the Human Realm and rid of that world of the supernatural who started pestering around and killing the Humans. I also want you to find the ones holding "Sacred Gears" and have been turned into Devils and take their gear from them... willingly or not. those two factions have messed up the order and now they will pay the price.

Killia: Consider it Done Tyrant Baal anything else?

Baal: I also want you to find the one responsible of the rebirths and bring them to me. I would personally punish them for the countless innocent lives that were lost.

Killia: Very well. I would be on my way then...

And with that Killia summoned a portal to go to the Human Realm and rid of it of the two supernatural factions lingering on it.

Yokai Faction

A beautiful woman with Blonde hair and in a yellow kimono was seen playing with a Blonde little girl in a shrine maiden outfit. This two are Yasaka and Kunou the wife and daughter of the current Yokai Emperor Enma Daiou.

They were having a peaceful day of relaxation until they felt a familiar aura emanating from within the Yokai world which shook the entire faction.

Yasaka: Looks like daddy has come home

Kunou: Really mother?! Oh I'm so excited to finally see Daddy! Can we please go greet him!? Please!?

Yasaka chuckled to her daughters antics until she felt a slight disturbance from his aura. She frowned and knew what his feeling right now.

Yasaka (Thought): Daddy's really angry. *Sigh* looks like he received the news and is now very upset... those devils will really be in it now...

Angel Faction

Two seraphs were enjoying a nice day in heaven until a golden gate emerged from their office which took them on an offensive state but later recomposed when they saw who emerged from it. It was none other than Merkabah their good friend.

Merkabah: It is good to see you two once more Michael and Gabriel

Michael: it is good to see you too Merkabah to what do we owe this visit?

Merkabah: straight to the point then huh Michael? Very well... we have a grave situation to talk about...

Michael frowned when he heard the tone of Merkabah he knew what she meant and his glad he upheld his vow.

Michael(Thought): Looks like your in a whole lot of trouble now Sirzechs. I warned you many times and now... you will have to face the biggest mistake you have ever made...

Dimensional Gap

A Giant Red dragon is seen flying around aimlessly in the dimensional gap as a black haired girl is screaming and wanting to get the giant lizard to get out of her home. This black haired girl is none other than Ophis, wife of the Dragon God Emperor Bahamut and the red dragon was none other than Great Red.

Ophis continued yelling at Great Red until they felt a presence which made Great Red pale and Ophis to smile.

???: Causing trouble with my WIFE again RED?

Ophis immediately soared towards her husband who is now towering over Great Red who is shivering in fright.

Bahamut: I warned you ONCE you apologize and were forgiven... I warned you Twice and I beat you to a near death state... I warned you for the FINAL TIME and you know what will happen...

GRed: *Meep* M-m-m-mercy?

Bahamut pointed a finger at him as a multicolored ray hit him and now made Great Red into a baby red dragon whose now crying uncontrollably. Ophis looked at Great Red's form before smirking and returned back into nuzzling with her husband.

Ophis(thought): Best Husband Ever!

HUMAN REALM

In a park near the city, a portal manifested as a figure emerged from it. This was none other than Killia who had arrived in the human realm.

He surveyed the area and tried searching for the energies that are not supposed to be in the first place. He stopped when he saw a brown twin haired girl with severe injuries laying on the side, he took a quick look of her soul as it is desperately clinging on for life. He outstretched his hand as a tiny green orb formed and shot towards the girl making her injuries completely gone and her life force back to normal.

He then continued his search and finally detected several faint signatures coming from somewhere. He scowled when he recognize those signatures as well as a certain lizard he knew very well. he walked towards the place while his aura slowly leaked out making the whole world trembled in his presence.

Underworld Realm

In a mansion in the underworld three individuals were discussing about an attack occuring on the school of where the little sister of the current Maou is going. The three were about to go there when they were brought down on one knee due to an unknown force suddenly being felt as the whole underworld shook from it alone.

Two of them paled when they knew whose presence is making the whole world tremble.

???: S-S-Sirzechs don't tell me?!

???: I am afraid it is Serafall!

The last figure a silver haired woman in a french maid costume knew what the two were talking about. She secretly smiled as she knew he would definitely come back.

???: Your back... Killia.

https://www.youtube.com/watch?v=SabSu_--9Oc