Out of respect for the joke I made regarding Mordred. Here's a peace treaty Gagagushtos you're welcome.

~~~~~~~~~~~~~~~~~~~~~
I was readying through and inspecting the stone tablet.

Y/n: "So I can summon the entirety of Uruk's forces to help me fire arrows towards my enemies? Interesting"

I've learned that in this form, I was weaker than my full body armor form or as it was known, my Archer form. This was known to be my Caster form.

Y/n: "I can't believe some of the things I've acquired"

A passive Noble Phantasm that gives me the best chances of winning. A new axe.

Y/n: "I guess this was Gilgamesh once he decided to abandon his path to immortality and be a wise king"

I close the tablet and send it to Babylon. I get up from my chair and head towards the lake. I notice Amagi, Akagi and kaga training together. Something new I learned not long ago was their ability to walk on water. I watched as they gracefully glided over lake.

Akagi: "Oh, Commander!!!"

Akagi waved at me. I nodded as she continued to display her arsenal while I went towards a tree to sit under the shade. Amagi noticed me and sat beside me as she watched carefully.

Y/n: "I like the new place. Remind me to thank Eucliwood"

Amagi: "Noted. I too like the new place Commander"

Y/n: "Yea, it's quiet and large enough for us to live peacefully for a while"

Amagi: "A while?"

Y/n: "As soon as they find us, which they will the moment they find the powerful barrier that covers up acres of land, they will start showing up more often"

Amagi: "What did you *cough* *cough* buy in the middle of Kuoh?"

Y/n: "A place to establish my throne. This housd will be my getaway home"

She nodded. Amagi seemed a little nervous when I looked at her closely.

Y/n: "Speak"

Amagi: "Pardon?"

Y/n: "What troubles you?"

Amagi: ".. I'm worried my strategies will not work"

Y/n: "They will"

Amagi: "How are you so sure?"

Y/n: "I believe in you. I am never wrong when it comes to putting my trust in people"

Amagi: "How can you put so much trust in me?"

Y/n: "Other than Eucliwood, you are the one I can say I'm closest to. I've spent the majority of my time with you and I've seen your work. I know you are capable of so many things inside that beautiful mind of yours"

Amagi: "I.. I see"

Y/n: "What's wrong?"

Amagi: "N-Nothing"

Gilgamesh: "Idiot"

What did I do?!

I plant my head on my hand thinking of something to do as I finally have some time to myself.

Amagi: "Commander, Can I-"

Amagi: "Oh, he's asleep"

She smiles a bit as she closes the distance and plants a kiss on his head before she gets up.

~~~~~~~~~~~~~~~~~
An hour later

I feel a tap on my shoulder and open my eyes.

Y/n: "Oh Eucliwood? What is it?"

Eu: "Someone contacted us"

Y/n: "What?! Already?! Well I guess you can't disguise a large barrier"

Eu: "It was a phone call"

Y/n: "Oh"

I get up from under the tree and walk with her towards the house. Upon arriving, I see Amagi on the phone with the person.

Y/n: "Oh, he's here now"

I'm passed the phone and put it up to my ear.

Y/n: "Y/n Gilgamesh L/n here, who is it?"

Sona: "It's Sona"

Y/n: "Sona? To what do I owe this phone call?"

Sona: "We need your help"

Y/n: "With what can I help you?"

Sona: "There's a problem. A Fallen Angel leader by the name of Kokabiel has appeared and is heading to Kuoh Academy right now. He's threatening to start a war"

Y/n: "Hmm, that certainly does seem to be a problem"

Sona: "I know. Rias and I are trying to gather help-"

Y/n: "Hold on a second. Did you say Rias?"

Sona: "Yes. I know you two don't get along but-"

Y/n: "You've lost my interest"

Sona: "Y/n, this isn't a laughing matter"

Y/n: "Am I laughing?"

Sona: "Didn't you want Kuoh as yours?"

Y/n: "Yes, why?"

Sona: "He's planning on blowing it up. If he starts war it'll become a battle zone. Is that what you want as Kuoh's king?"

Y/n: "*sighs* I guess you're right... I'll be there in a minute"

Sona: "Thank you"

Y/n: "Yea yea yea. Thank me after I wipe the floor with this guy"

I hang up and sigh in annoyance.

Y/n: "Can't villains just take a day off? Why does there always have to be trouble?!"

I start gathering my troops and take off for Kuoh Academy. Before I leave the premise, I think of my Holy Grail.

Y/n: "Maybe later"

I continue on my way to Ahri who already created the teleportation circle.

Y/n: "Alright, let's deal with this problem. You all know what to do? If you don't, here's the gameplan. X and Mordred take out enemy infantry. Eucliwood, Amagi, Kaga and Akagi take care of any hostages or injured. You 4 will take sed people to Ahri who will be using a barrier to protect and heal them once inside"

Isla: "What will I do?"

Isla spoke up.

Y/n: "You'll stay near Sona. Anything she needs, you help her with"

Isla: "I'll do my best!!"

I signal Ahri and we are teleported outside the school campus.

Mordred: "There's already a giant barrier surrounding the school"

Y/n: "I got it"

I walk up to it and analyze it a bit. I walk back and open a gate as a sword fires into it, shattering it and leaving a hole.

Y/n: "There we go"

We all walk in as everyone splits up. I walk towards the commotion as I see a man in black with red eyes thank Rias for her attack. He spews some nonsense that seemed to trigger everyone for a second.

Man: "In the previous 3 way war, GOD WAS KILLED ALONG WITH THE 4 GREAT DEVILS KINGS!!!"

Everyone fell to their knees upon hearing the news. I could sense that some of my troops also felt the same as they did.

Asia: "No way.."

Blue haired girl: "God is dead?"

They all spoke amongst themselves.

Y/n: "So what?"

They all turn to look at me.

Y/n: "So what if they died? That doesn't mean someone can't just take up the mantle of the previous king"

Rias: "You can't just replace God!!"

Y/n: "I just did"

Issei looked at me.

Issei: "New costume?"

I ignore him as I stand over a tree.

Man: "And who might you be, human?"

The man in black looked at me disgusted.

Y/n: "Silence mongrel. I heard from Sona that a man threaten my Kuoh. I presume that to be you? As king, I should show no mercy to those who decide to attack what's mine"

Girl: "How are you so calm after hearing what he said?!"

A girl with blue haired asked me a pointless question.

Y/n: "I am no spineless fool who blindly follows whatever God they bow to. Every god is eventually fated to walk up to death's door whether it be of old age, a battlefield, or by my hands"

The atmosphere got heavy once I uttered the last words.

Man: "Him a god killer? What weapon must he have to be able to slay a god?"

Y/n: "That is something you mustn't concern yourself with. After all, you'll be following that God's footsteps pretty soon~"

I turn my attention back towards the girl and stand proudly.

Y/n: "Should I live in fear that God is dead? Nonsense!! I cower to nothing. I am simply one who knows what he must do"

I point towards him.

Y/n: "You are Kokabiel. Sona told me all she knew about you. Tell me, how would you like to die?"

Kokabiel: "Hahaha!!! A human dares threaten me?! How disrespectful of you. Even standing up there feels like a slap in the face"

Y/n: "Why should I be eye level to those beneath me? To answer your last comment, I am no simple human"

I open Babylon and aim it towards him.

Y/n: "I am 2/3rd God"

Everyone's eyes widened the moment those words escaped my mouth.

Rias: "He's a demigod?!"

Akeno: "No wonder he has so much power.. His divinity must be through the roof?!"

Kokabiel takes a step back while trying to process my revelation.

Kokabiel: "Impossible!! You, a mere human being-"

I fire a sword towards him that slashes his cheek.

Y/n: "Silence you mut!! Did I say you can open that filthy mouth of yours?! Never interrupt a king while he is talking. You don't seem to believe me? Well then~"

The swords retract as other ones appear.

Y/n: "What do we have here? Tell me Kokabiel, what do you think these are?"

Kokabiel: "Weapons, what else?!"

Y/n: "I see you're not as brain dead as I thought you were, but you are also sorely mistaken"

I pull out one of the swords and smile.

Y/n: "These weapons, all these weapons!!.. Happen to be holy weapons"

His mouth drops along with everyone else's.

Kokabiel: "All those?!... are.. H-Holy weapon?"

Everyone was in continued disbelief.

Y/n: "Indeed, the original prototypes to be exact. So tell me Kokabiel, as I said before, how will you like to die?"

Kokabiel: "I-I WON'T DIE!!"

He creates a light spear and throws it at me. One of the swords flies towards it and destroys it upon impact.

Y/n: "I like it when they try to fight back"

All of the weapons fire towards him as he desperately tries to dodge everything. I mock him as he can't even attempt to go on the offensive.

Y/n: "Is this what you all define as a powerful opponent? Struggling with a measly mongrel like him?! I am not even going at full strength!! Enkidu"

The chains appear and trap him in place as the swords fly around him. I stop them as I walk over to him.

Y/n: "I'll show you what powerful really looks like"

Kokabiel: "What the hell are these?!"

Y/n: "Shut it you rabid dog"

He flaps his wings as they shoot feathers of steel.

Y/n: "Ig Alima"

A giant sword fell from the sky to block as the feathers before they could hit me.

Y/n: "Mordred"

On cue, Mordred came from the right side and grabbed all of Kokabiel's wings.

Mordred: "Now X!!"

X came falling from the sky with her cross caliburn and sliced them all off.

Kokabiel: "AAAAAAHH!!!!"

Ig Alima returns to Babylon as I walk over to him.

Y/n: "Now that the annoying part is out of the way, where were we?"

I pull out Caliburn's prototype, Merodach and smiled to myself. I release him from the chains and wave the 2 of my servants to back off.

Y/n: "Come at me with everything you have. Your strongest attack!! I'll give you a somewhat fair battle"

He screams as he charges at me, creating multiple spears he chucks in my direction. I block all of them without breaking a sweat while waiting for Kokabiel to get close. I grab the sword with both hands and pull it back as I charge it up for a blast.

Y/n: "As always. Once an animal is backed into a corner is when they get the most reckless. Attacking without a plan in motion"

With one shot, I obliterate his entire upper body. He stood no shot even if I brought out a weaker weapon.

Girl: "How is one man capable of weilding that much power?"

I look at the blue haired girl.

Y/n: "Because I'm the Prince of Heroes and King of Kuoh. Most importantly, I am Gilgamesh's vessel"

She freezes in place as I put Merodach back into Babylon as I make my way towards her.

Y/n: "I don't believe we've met properly. I am Y/n, King of Kuoh"

Xenovia: "King of Kuoh? I see, you are royalty. Forgive my rudeness, I am Xenovia Quarta, a vatican-"

Y/n: "I watched you battle for a bit Xenovia. Consider me impressed"

Xenovia: "Thank you"

I take a look and see that she had an interesting looking weapon in her hands.

Y/n: "What weapon is that?"

Xenovia: "This is the sacred sword Durandal"

Y/n: "Durandal?.. Seems pretty weak. Let me show you what the real Durandal looks like"

Xenovia: "Excuse me?!"

Y/n: "This right here, is Durandal"

Xenovia: "There's two?!"

Kiba looked at me in disbelief.

Y/n: "Two? There was never more than one. There is only one such weapon named Durandal and I don't weild fakes"

I smirk a little as I send it away and look up at the sky.

Y/n: "Another dragon boy huh?"

??: "It looks like you made my job a lot easier. I was sent her by Azazel to send him to Cocytus but you already seemed to have finished him off"

Y/n: "You can take his bottom half if you like?"

Issei: "Vali"

Y/n: "It seems you and the Gremory brat there have some problems"

Vali: "We're rivals"

Y/n: "Rivals? You look a lot stronger than he is"

Vali: "Comparison between the two of us is laughable. He is far to weak"

Y/n: "To that of an eagle to a worm"

Vali: "Hahaha!! You're right"

Issei: "Quit shit talking me, you assholes!!!"

Y/n: "And why should I? I'm simply stating the truth as I see it"

Vali: "Looks like I'll be seeing you later then Red Dragon Emperor"

He takes off as I call for my team.

Y/n: "Looks like things are done here"

Xenovia: "Y/n"

I see Xenovia walking up to me.

Y/n: "What is it?"

"I.. I'm lost. With finding out that God is dead.. I don't know where to go or what to believe in.."

I nod understanding what she's trying to say. I pull out my box containing the Evil Pieces inside. I take a good look at her and pull out my last two pawn pieces.

Y/n: "You need a path? Take this piece right here to show me your loyalty to me. The moment you take this piece, you'll become one of my retainers. I'll lead you to figuring out what your next stop is"

She looks at it carefully. Behind her, a brunette girl stares at her in disbelief.

Xenovia: "I.. accept"

The piece goes into her as she officially becomes part of my peerage.

Rias: "Y/n. Just how much more stronger is he going to get?"

I could hear Rias in the background while Sona arrives with Isla by her side.

Y/n: "Was she helpful to you?"

Sona: "Yes. Thank you for coming"

Y/n: "If this idiot decided to attack elsewhere, I wouldn't of come. This was not my problem, but the moment he decided to attack Kuoh, it became my problem. Remember that there won't be a next time should it be elsewhere"

She frowns a little as Isla runs towards us.

Isla: "I'm sorry I'm late"

Y/n: "No worries. Ahri, let's go home"

Ahri: "On it"

In a flash, we arrive back to the hideout.

Y/n: "I hope that's the last battle for a while"

I was about to walk towards the door when I felt X pull me to the side. I tell the others to go inside as I tag alongside her.

X: "I think it's best to go to that meeting master"

Y/n: "What is this all about?"

X: "I think it might be worth arriving. Should a problem arise, we'll be ready for anything"

Y/n: "Hmm.. I really don't feel like going but if it'll make things smoother"

I think about how my attitude towards war had changed.

Wow this Caster form changes me.

~~~~~~~~~~~~~~~~~~~~~~
Unknown place

Vali: "What do you think?"

Vali lands on a powerline while a girl looks out to Kuoh Academy.

Girl: "He's pretty strong"

Vali: "Do you want me to try?"

Girl: "You'll get murdered the second you attempt it. Recruiting him isn't an option since he'll just decline but befriending him isn't out of the realm of possibility"

Vali: "Understood"

He takes off as she looks out.

Girl: "Definitely worth trying~"