Previously

Killiam called them Royal Guards. Due to how High their skills are, They are used for Villager Noble escorting, Guarding, or even as Generals for their Army.

I stood infront of the gate as I bid goodbye to the Villagers and Killiam. I got the rest weapons back from the Keeper

Killiam: You certainly earned your keep here Y/n. You can visit anytime.

Y/n: I will. Good luck with the Players.

Villager: I want the Curved Sword! The curved sword! Curved sword!

Killiam: You should go now. We have some obsessive ones here.

Y/n: I can see that. Anyways, Bye.

I made my way back to my Home, unaware of a Pair of Green eyes staring at me.

???: Oh~, How Strong and Skillful~. Don't worry Dear~, We'll be together soon~.

And Now
1 week later
Narrator POV

Y/n and Rose's works reduced the amount of Criminals. But to Y/n's Eyes, Nothing changed. The so-called 'Heroes' are similar now, with their wars and so-called 'Greater Good'.

Atlas tried to replicate the way the Shipgirls were born. It was succesful, But It only created more of them. Now, Several new Shipgirls are now in isolation for Experimenting.

Luckily. Y/n saved several more of them. He rescued several girls, who goes by the name Bismarck, Tirpitz, Shoukaku, Sovetskaya Rossiya, Hood and King George V. They said they're named after the Atlas Battleships and Carrier.

Ever since. They called Y/n, Shikikan/Kommandant/Commander, but he said to just call him Y/n, saying that it's annoying.

Today is pretty much Normal to the world

*cue multiple explosions*

And I spoke too soon.

Looking at the Attackers. The Leader of the Attack is Trihexa, also known as Beast 666. The Being even Ophis and Great red fear. It's leading its army everywhere, decimating everything in their path.

Rose POV

I stood with my Fiancé as we look at the Vast army.

Rose: So. Should we help them?

Y/n: Help The World. Not the Fake heroes.

Rose: *giggles* Kinda expecting, But okay dear.

Y/n: Heh. I'll wear my armor and Helmet, not that I need it, but to hide my appearance.

Rose: Okay~ *kisses him* I'll see you there~.

I teleported back to our house while Rose started killing the Invading Demons. I put our House on a Soundproof spell to hide all the sounds from the outside so that our Daughters can sleep in peace.

And Belfast and Cheshire cleaning the House while they're Master was out.

Belfast: Oh Master. You're back.

Y/n: Yeah. But not for long. Just have to get my Armor.

Cheshire: Master. It's in your Room meow.

I thanked them and went to the room to put on my armor. Genesis gave me this armor, not the I need it, But I think This is a Good time to use it.

(No Swords)

A/n:Sorry, But I know one of my commenters suggested this armor, I just forgot who and who's armor is this. Forgive me.

Rose's POV

I have Musashi on hand as I looked at the numerous bloodied bodies of the Demons I already killed.

Rose: Kinda hoped these would be stronger, But They're better than nothing.

I was about to kill more demons, but someone beat me to it. A Woman wearing white, blue and green plate armour with emerald green crystal-like ornamentation, She has a rather happy smile and a wide sword.

???: Sorry about that Rose.

'How does she know my Name'

Rose: Who are you supposed to be?

Pneuma: Name's Pneuma. I'm the War Goddess. And don't bother bowing, Kinda getting old now. Same thing for Formalities, Just Pneuma

That was......surprising to say the least. She kinda read my mind in advance.

Rose: Um. Okay Pneuma. What brings you here? Shouldn't a Goddess like you watch over this.

Pneuma: Don't think I would miss all the fun. That reminds me, Where that Handsome guy you were with?~

Handsome Guy? Is she talking about Y/n? Oh no, I was expecting another Girl to like him, But I didn't expect a Goddess to like him.

Rose: You mean Y/n? My Fiancé?

Pneuma: Who else. A guy with such Skill and Power, followed by Handsomeness attracted me, Of course I'd be talking about him.

What should I say? I can't say yes without Y/n knowing, But I can't say no to a Goddess.

???: Oh hey Love. Who's the pretty lady?

We turned our heads to see Y/n in his armor. I glanced at Pneuma, And She was blushing.

Pneuma: *blushing* Um. Name's Pneuma, I'm the War Goddess.

Y/n: Another Goddess I haven't met yet? Well. My name's Y/n L/n, Milady.

He took her hand and kissed it. She blushed madly and looked away.

Pneuma: A gentleman I see. But Can we get to know each other later? We have an Invasion here.

Y/n: Right. *to me* Hey Love, Shall we go?

Rose: Of course Dearie.

He used Yamato and cut a Portal directly into their Main Forces.

Location Change
Union City C
3rd POV

The 'Fake' Heroes. Humanity, The Devils, The Angels, Fallen, and the Players have killed some of them, But the Higher Demons were too much for them. Only a Select few can handle SS class Demons, But no more higher.

Y/n's Rescued Shipgirls were shooting down the Flyers with their Cannons and Planes.

The ORC was trying, Keyword: TRYING to kill a SSS class Demon while Issei was saying things like "Once I kill you, I'll finally prove my Power and All the Ladies will fall for me". Pshhh, Keep dreaming Pervert.

The heroes and All might were struggling to fight off one of the Generals of the Attack. A Balrog.

They were very exhausted and weakened by the Demon. Issei was about to attack again, but The Demon has already been cut a like Million times.

???: Heh. Too easy.

He turned to see a person with Light Armor with a Girl standing next to him. This was Y/n and Rose. But to Issei's eyes, another Girl to add to his Harem.

Issei: *to Rias, Whispering* Who's the pretty lady?

Rias: That's Rose, daughter of Vorzech, Also known as the Strongest Demon alive.

Issei: *whispers* She's so beautiful. I would love to add her to my Harem.

Rose: *quietly* Keep dreaming Pervert.

Y/n: So. *looks at the Incoming Demons and readies Yamato* Shall we love?

Rose: Of course Dear *readies Musashi*.

Issei: *mind* Dear? Oh no. Don't worry Issei, She'll be in your Harem after this.

Y/n and Rose dashed towards the Demons and executed One of their Sword Combos. Judgement cut End

(0:46-0:50)

When they fully sheathed their Swords. All the Demons exploded, Blood and guts flying everywhere.

Y/n: Kinda Easy. Hope The Leader would give us a Fight.

???: HERE I AM MORTAL!!!

All heads turned to a Big Creature. It was Trihexa, Beast 666. A Being Ophis and Great Red feared. Many were shaking in fear, except for Issei, He was standing full of Bravery, though a Noticable wet pants made Y/n and Rose doubt it.

Y/n: *sigh* You nearly destroyed my Family's Home. Now I will kill you. *to Rose* Leave this to me Love.

Rose: As you wish Dear.

He took out Judgement and started walking to Trihexa.

Trihexa: Oh? You're approaching me? Instead of running away like the rest, You're coming straight to me.

Y/n: Yes. I'm fighting you head-on.

Glynda: Mister! Please leave the premises! This is not your-

Rose: Quiet Goodwitch! Let him take care of him!

Issei: Hey lady.

Rose: *mind* I expect this. *out loud* Yes?!

Issei: I just want to say.........That you're hot and you should join my harem!

Rose: Sorry!, I don't date someone as stupid as you!

Y/n used his Villager rod and hooked himself towards Trihexa. With it's Immense speed, combined with Judgement's Smite Power, He left Dozens of Slash Wounds. But when He stopped, Trihexa just regenerated them.

Y/n: Hmmm. Time to unlock the Gates.

"Gate of the Overworld! Open!"

"Gate of the Underworld! Open!"

The Overworld drastically increased his Speed while the Underworld increased his Striking Power. There are 3 gates left.

Y/n: *dragon like roar* RAAHHHHHHH!!!!

He jumped and did the same thing, only this time, He used the Legendary Sword. With all the Enchants it has, It destroyed Trihexa's Healing ability.

Trihexa: *in pain* Gahh!!! How Dare you!!!

Y/n: Time to finish you off!!!

He took out The Dark Spark and Charged it. Trihexa's Leg wounds prevented it from moving, Making a Perfect time to use it.

Y/n: I'll see you in the next Life!

A Golden-Blue beam emitted from the Crystal and shot towards Trihexa. The Force It's emitting started pushing the Clouds.

Trihexa: Is this? Fear?

The beam hit Trihexa straight on as It disentegrated it with ease. The World saw that a mere Person destroyed Trihexa with Ease. A feat seemed Impossible to do.

(Y/n: *In the 4th Wall* I AM THE IMPOSSIBLE!!!)

He droppex down and went to Rose and the Gaping Union and Heroes.

Y/n: That was fun. Feel like Trihexa is my Strongest Opponent now, With your Father in 2nd.

Rose: *giggles* You always love a tough fight Y/n.

The shocked everyone except them. She removed her Helmet (Magic Helmet) and kissed him. He kissed back, ignoring the shocked and angry noises of a Certain Brown haired Pervert.

Issei: No fair! How come a Loser like him gets a Hot Babe like her! She should kiss me!

Rose: *releases* I have many reasons. One of them is that You're not loving a Girl for who they are, You love them for their Curves.

Issei: You should leave him for me!! I bet he's not even a good Boyfriend!!

Rose: Oh yeah you're right. He's not a good boyfriend.........He's my Perfect Fiancé.

That hit him hard. He never got a marriage planned and Y/n already has one.

Y/n: Shall leave this place? These fakers are ruining the Moment.

Rose: Sure.

???: Master.

All heads turn to the Direction of a attracting voice. They saw a Girl with rather dark hair and Clothing and a Metal chain on her wrists. Again, This made Issei drool.

???: *walks to Y/n* Master.

Y/n: Me?

???: Yes you.

Y/n: Who even are you?

Trihexa: I am Trihexa. And I'm your new familiar.

A lot were shocked to hear that. The Multiversal Threat is a Servant to someone.

Y/n: Familiar? What's going on with you?

Trihexa: Allow me. My Creator made me pledge an Oath to anyone who defeats me. I would serve him/her till the rest of his/her days. And my new master is you.

Issei: Hey gorgeous! I defeated Trihexa! I'm your new Master!

Trihexa: *ignores him* Master. I'm with you till the end of your days. Please accept me.

Y/n: I-I. I guess I have no choice but to accept. But the chant is elsewhere, not here.

Trihexa: As you wish Master.

He cut a portal and teleported to their Home, leaving the Shocked students and a Crying pervert.

Additional part
With Rose, Pneuma and Genesis

Rose: So. What is it that you want to talk about?

Pneuma: Well. The thing is that-

Genesis: Rose.

Rose: Yes Genesis?

Genesis: *grabs her hand* Please let us be Y/n's Other two Fiancés!!!

Rose: Wh-what?

To be Continued.