-3D POV-

The next day Y/N was heading to the hospital. He had Mjolnir with him hanging on his right hip. Soon enough he arrived and headed to the room where all of the gods were located. He stood outside the door and with a deep breath he walked in. All eyes immediately were on him.

Odin: Hey kid, need anything?

Y/N: Yeah. *shows Mjolnir* Answers.

Thor: So it's you. Well welcome to the family.

Odin: That makes a great grandfather now.

Y/N: So I'm related to you two?

Thor: Yup. My grandson and his great grandson. On your mother's side, but that begs the question. Who is your father?

Y/N: I had a vision. The man had short hair and a beard. I think he also mentiong someone called Hati.

Kratos: Atreus.

Y/N: Wait you know him?

Kratos: Yes. My son.

Odin: Well shit. Who knew that one of my killers son would now be my grandson-in-law.

Y/N: So that means-

Thor: That's you're a God. From both the Norse and the Greek.

Zeus: So that also means that you're the ruler of Olympus AND Asgard.

Y/N: Oh come on! Can I not be a ruler in at least this life!

Odin: This life?

Y/N: *sigh* Basically I lived 7 lives before this one. In one of them I was a ruler of a huge nation. Probably one of the strongest in existence. Fought for thousands of years and finally after defeating and killing our enemy I passed away. And considering that we were highly technologically developed I won't be surprised that once I show my aura of that life they will find me and come to this world.

Thor: Shiiiit man, well good luck managing both those places.

Y/N: Yeah sure but wasn't Olympus destroyed by the God of war here?

Kratos: No. I killed the gods. Nothing more.

Zeus: Yeah but a few remained. Like Hestia, Apollo, Aphrodite and Artemis. So they may have restored Olympus but didn't have enough power to stop the apocalypse.

Y/N: And now that I'm here I'm technically your great grandson and I inherit the throne?

Zeus: You're the only one who has the required power to. *shrugs* So I guess?

Y/N: Well shit. I want you tell me what kind of people my parents were. We have a lot of time.

----meanwhile in space something was approaching the planet----

???: Are you sure that he's here?

??? 2: Yes, the source came from this planet. From what I gathered he's located in the big city called Union.

???: I see.

??? 2: Prepare the troops. You're going down while we stay in the orbit and wait for your signal.

???: Understood!

Soon enough the space ship however over the planet and from it flew a way smaller ship. It headed straight to the Union city and landed in the forest just outside Union and from it emerged 20 soldiers with a man in the front leading them who looked like a commander.

Commander: You 20 follow me, the rest stay on the ship and await further instructions.

Soldiers: YES SIR!

The soldiers followed the commander and when they entered the city they were surprised that there were no soldiers around. While walking the people looked at them weirdly and some heroes who spotted them immediately called and reported it to Union academy and police. The soldiers meanwhile were surprised to see many weird looking people as well as people with animal parts walking around and talking to humans. After 30 minutes of walking and following the device they were given they stopped in front of a hospital.

Soldier 1: Sir is he here?

Commander: Yes. Wait, the signal is getting bigger. He's coming everyone in a formation!

Soldiers: Yes sir!

Soon enough from the inside walked out Y/N and when he saw who was in front of him he froze. The Commander pointed the device at Y/N and it exploded.

Commander: It's him! *kneels* IT'S AN HONOR TO BE IN YOUR PRESENCE HOLY EMPEROR!!

The soldiers followed the suit and did the same as the Commander. Then suddenly they were surrounded by the police as well as some heroes who arrived at the scene like All Might, Eraser Head and Nezu. The police aimed their guns at the soldiers.

Policeman: Put your weapons down and your hands up!!

The soldiers got on edge and pointed their weapons at them.

All Might: Please calm down! We don't mean harm!

Soldier 5: Yeah right!

This situation was interrupted when Y/N walked between the two groups and looked at the soldiers.

Y/N: Stand down.

The soldiers didn't even hesitate to follow the order as they saluted and put their guns away. Y/N meanwhile was approached by Nezu and the heroes.

Nezu: You know them Y/N?

Y/N: You could say that, let me introduce to you the Imperial Guards.

Soldiers: Sir!

Y/N: And their commander. Commissar Sebastian Yarrick.

Sebastian: *salutes*

Nezu: I see. Should we take it to Union? I wouldn't want to worry the citizens.

Y/N: I agree. Commissar call the ship and head to Union Academy.

Sebastian: At once my lord!!

--scene change to training guards of Union--

Currently the headmasters along with Y/N were in the training ground behind the academy with the squad behind Y/N. The students that didn't have classes watched from the windows.

Ozpin: So you're saying that you're reincarnated?

Y/N: Yeah just like you Ozma. *Ozpin and the others look at him in shock* Yeah yeah, we'll talk about this later in the office. Okay so basically in my past live I was and technically still am their ruler.

Ozpin: I see.

Sebastian: My lord the ship is coming down.

Y/N: Good, how many of the chapters are left? After all it's been a long time.

Sebastian: Only 7 sir, along with not many of Adeptus Custodes.

Y/N: Damn. Less than I expected.

Soon enough a huge shadow hovered over the academy and when everyone looked up they saw a huge ship and were shocked at how it looked. Meanwhile Y/N just smiled. (How it looks like)

From the ship 3 smaller ships flew out and landed. From them emerged 50 men wearing a golden armor. Leading them was a man with a weapon bigger than himself. (A reference so you can know how they look)

Y/N: Trajann Valoris, I'm not surprised that you're alive.

At this point many students walked out of Union and were watching this unfold. Y/N then started to glow a golden aura and increase in size. In a quick flash of gold in his place now stood a very tall man wearing a golden armor with a flaming sword in his right hand while his left hand was a huge claw. Behind his head there was also a brightly glowing halo.

All of the Marines immediately kneeled but stood up after Y/N gestured them to. He turned around and saw everyone looking at him in shock. Then he spoke in a deep voice full of authority.

Y/N: These men are my bodyguards, their lives forfeit to the guarantee of my physical safety. Of their loyalty to me there shall be no question nor doubt. I, and I alone, shall have the authority to stand in judgement over them. No other commander shall they have in battle nor in service. None shall bar them from me and none shall hamper or stall their mission. So it is decreed!

Marines: GLORY TO THE EMPEROR!!

They shouted and some students with animal like powers and faunus had to cover their ears at how loud they were.

Trajann: It is great to know that you live, my lord!

Suddenly Y/N transformed back into his current self and fell to the ground exhausted.

Trajann: My lord!

Y/N: Don't worry Trajann. It just takes a lot out of me to transform so casually. *stands up and turns to then* What chapters and how many of them remained?

Trajann: Salamanders, 100 Marines.  White Scars, 100 Marines. Blood Angels, 200 Marines. Ultramarines, 200 Marines. Raven Guard, 200 Marines. Space Wolves, 200 Marines. Black Templars, 500 Marines. That is all my lord!

Y/N: Only 7 huh, and only 1 500 in numbers. With you it's 1 550. What about my sons. How many remained?

Trajann: Only 7 Primarchs my lord. Each leading each of the chapters left.

Y/N: *sigh* I assume they're back on Terra?

Trajann: Yes. We were sent to bring you back home.

Y/N: That makes things harder. I'm not planning on going back, I have new families and friends I am not leaving behind. Contact them and tell them to gather the people and all of our resources and head here. This is our new home, and don't worry about Terra, I have something planned. Dismissed.

Trajann: At once my lord! Permission to allow 2 of Adeptus Custodes to stay with you as bodyguards!

Y/N: Granted.

The soldiers left back onto the ship while 2 stayed and were behind Y/N. Y/N meanwhile turned around and looked at the headmasters.

Y/N: Look can we discuss this when the rest arrive? It's already giving me a headache to deal with the things I learned from before.

Nezu: It's alright we understand.

The headmasters turned around and left but Ironwood stayed and before he could even speak.

Y/N: No I will not share any technology with you General. Any of your people don't even have the physical capabilities to pick up even a simplest weapon of the marines.

James: *nods* Understandable have a good day.

And with that he left. As he did to Y/N immediately ran up 2 specific roses with his friends following.

Summer/Ruby: OHMYGODTHEYLOOKSOCOOL!CANWETOUCHTHEIRWEAPONS?THEIRARMORISSOCOOL!CANWEPLEASEUSETHEM!?PLEASE!PLEASE!PLEASE!PLEASE!PLEASE!CANWE?CANWE?CANWE?CANWE?

(OH MY GOD THEY LOOK SO COOL! CAN WE TOUCH THEIR WEAPONS? THEIR ARMOR IS SO COOL! CAN WE PLEASE USE THEM!? PLEASE! PLEASE! PLEASE! PLEASE! PLEASE! CAN WE? CAN WE? CAN WE? CAN WE?)

Both roses then were restrained by Yang and Glynda and pulled away from him.

Y/N: Sorry but no.

This made both of them whine while trying to use puppy eyes on Y/N. Unfortunately that didn't work as he knows some people who can use that technique better.

Claire: So they are your bodyguards?

Y/N: And soldiers.

Weiss: How strong are they?

Y/N: *snaps his fingers* Killcount. Now.

AC 1(Adeptus Custodes): 18 837 582. My lord!

AC 2: 19 027 824. My lord!

Y/N: There you have it.

The others meanwhile were looking at them in shock.

Blake: Wait you killed humans?

Y/N: Followers of chaos and other creatures that wanted nothing but kill and destroy.

Blake: Oh.

Erica: Wait how come they aren't questioning why you look like this now?

Y/N: All of my people know about my reincarnation so they knew that I would look different.

Liddy: Then if you have such powers why hide them? You could be the greatest hero in history!

Y/N: 'technically already am' I don't want that. I just want my license so I don't get bothered and just to live a happy life.

Liddy: Okay that's understandable.

Y/N: Well I'll be leaving then, still have to explain everything to the girls.

Y/N started walking with both Adeptus following. While walking through the halls the students moved out of their way. While approaching his dorm he saw Cardin bullying Velvet again.

Y/N: The guy bullying a girl with bunny ears. One into the arm the other into the leg.

Both adeptus understood the order and shot Cardin into an arm and leg and the force of the shot not only tear the both libs off but also sent him through the wall. Velvet looked at them in shock while Y/N waved a little and continued on his way. Soon enough he arrived at his dorm.

Y/N: Stay guard.

Both adeptus stood on the sides of the door while Y/N entered. In the room he found all of the girls looking at him in shock. Kal'tsit who was also there looked at him with a glare, which didn't do anything, and spoke.

Kal'tsit: You have a lot to explain.

Y/N: I assume you heard the news?

Akali: Yup. Some students recorded the whole thing and posted it on the web. Safe to say you're the talk of the whole world. But damn dude I didn't expect you to be an emperor.

Y/N: Yeah, although I worry about how the fans of Warhammer 40k will react.

Ahri: The fans of what?

Y/N: Just Google it. I'm surprised that none of you know about it.

Some of the girls did so and Seraphine found a page about the man Y/N turned into.

Seraphine: Girls listen to this. "The Emperor of Mankind is the overarching protagonist of the Warhammer 40K science-fantasy series. As the most powerful human psyker to exist, He is the founder and sole monarch of the Imperium of Man as well as the deity of the Imperial Cult. He is also the only being in all of galaxy who puts great fear into the gods of chaos"

Akali: Okay so apparently you're also a fictional character who is real and is more powerful than anyone.

Y/N: Basically.

Kal'tsit: Okay we understand that. But in the video we could hear you saying something about having sons.

Y/N: Oh that's easy. They are my genetically-engineered sons. My DNA was used in their creation so they are technically my sons. Unfortunately only 7 of them remain, and yes that means that you're a mother now.

At that Kal'tsit fainted while a realization finally dawned upon Silvervale.

Silvervale: Wait does that mean that they are my sons as well?! I'm your fiance too!

Y/N: Yup.

Silvervale: Oh God. Oh I don't even know what I'll do when we meet them! Y/N how do I make a good impression on them? I don't want them to hate me!

Y/N: Don't worry dear, just be your adorable self and everything will be alright. Now who wants to hear how I shoved my sword into the throats of the chaos gods!?

Akali/Kassandra/Lucia/Lily: ME!/*raises her hand excitedly*

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And that's done! I bet yall didn't expect that one of his lives is THE Emperor of Mankind. ;) Anyway hope yall enjoyed.