Okay holy shit. At first I wanted to make that vote as a joke and add her to the harem but seeing how many people voted for daughter scenario I decided to switch things up. Instead I replaced Asia with a special guest. ;)

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-3D POV-

Currently Y/N and Asia were walking to Y/N's house while chatting a bit. Y/N told her some shenanigans her brother pulled off which made her laugh.

Asia: I see big brother is still the same. May I ask, why do you wear a key as a necklace?

And as she mentioned. Y/N had a key as a necklace. However the very interesting thing about this key was the end of it, on the end was a golden, two headed eagle, the key itself was also golden.

Y/N: It's one of the last things that my grandma left me. She said that it's from my grandfather's house but I don't know where it is.

Asia: How so?

Y/N: The details of the location is in the necklace and it's in the possession of my mother.

Asia: Can't you just ask her for it?

Y/N: It's more complicated than you think. I'll tell you one day.

As they approached the house Y/N saw a family of 4 walking in their direction. A mother, father and 2 sons. Although one of the boys Y/N recognized.

Woman: Oh good afternoon. I haven't seen you before. Are you new in town?

Y/N: Yes. We moved in a few days ago.

Woman: Oh I see. Well I suppose we should introduce ourselves. I'm Miki Hyoudou and this is my husband Gorou and our sons, Isano and Issei.

Gorou: It's nice to meet you and Jesus you're tall.

Miki: Dear don't be rude!

Y/N chuckled at the woman scolding her husband and looked at the family. Although Issei looked, weird. The bad kind of weird.

Y/N: It's alright, I get that a lot. I'm Y/N Lioncub and this is-

Miki: Y/N!?

Y/N looked at the older woman and saw that she was on the verge of tears.

Y/N: Yes? Did I say something wrong?

Miki: I- I- I'm your mother. I'm Miki Lioncub. My mom, your grandma is Clara Lioncub. *starts crying*

Immediately after hearing that Y/N's face changed from friendly to cold and neutral. Some could even see great anger in his eyes.

Y/N: Oh. It's you. So this is what you left me for? A new family?

Miki: *falls to her knees sobbing* I'm sorry! I'm sorry! I'm sorry! *sob* I know you can't forgive me *sob* but tell me *sob* how is mom?

Y/N: She's dead.

Miki: *sob* What!?

Y/N: I told you she's dead. Died while I was in the military earning money for her to live a happy life. She died in her sleep with a smile on her face and a letter in hand. Only for me to read it later on and break down crying. When the funeral was held many people came and I hoped, part of me still hoped that you would show up. But you didn't. I stayed at the grave the whole night. I slept next to it just to be with her a tad bit longer.

Miki: *sob* I'm sorry. *sob* I'm so so sorry.

Y/N: I don't need your sorry. But what I do need is the necklace you got from grandpa. After what you did you don't deserve it. I'll be visiting in a few days to take it back. After that, I hope to never see you again.

With that said Y/N walked away with Asia following leaving a crying Miki and a family who was trying to calm her down. Although Issei was staring in the direction that Y/N left, something that Y/N took mental note of. After a few more minutes of silent walking they arrived at the house and upon entering Y/N went and wrote down a number and gave it to Asia.

Y/N: Your brother's number. I'll be in my room if needed.

Y/N left upstairs while Asia looked around and saw the other girls looking at her confused.

Asia: *waves politely* Hi.

--with Y/N--

Meanwhile Y/N was sitting on his bed holding the key while looking at the photo of his Grandparents holding him when he was 5. To this day he still remembers the story his grandfather told him. A story of a Golden Palace and it's Protectors.

~flashback~

-5 year old Y/N POV-

I was sitting on a grandpa's lap excitedly as he was about to tell me one of his awesome stories. We heard footsteps and grandma walked into the room and sat next to us.

Grandma: Are you telling little Y/N one of your stories again?

Grandpa: Of course. He needs to know to what our family done to history, albeit, it was forgotten. Now listen well Y/N, I will tell you a tale how your great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great great grandfather got an honor of telling a story of one of the greatest heroes mankind has ever seen, I still remember word to word when my dad told me this story. (Bold letters mean that he's telling the story) ((I also ask to not comment too much on the dialogs. The source video will be at the end of the chapter))

I was called to Terra

To tell a tale of a hero born beneath different stars, in a different time

Into the sanctified stone if this world

I will carve a tale of a Custodian!

He was born here

It seems... strange, to say that, that he was born here

Few are allowed the privilege of calling Terra their Birth world

He was born before so much of our history happened

He was born before so much strife ravaged the universe

I was privileged enough to meet him once

He told me

"I do not remember much, but I remember my mother's name"

He would see their faces on statues carved by generations of our masters

Generations of humble, feeble humans who toiled for decades to capture the likeliness of thousands of heroes

I am one of the new generations of stone masons

The custodian is a figure of ancient myth

In my own way, I didn't believe him to be real

For ten thousand years he has walked these labyrinthine temples

Legions of the faithful would, and indeed do, give their lives to see even a fraction of what he guards

Many ask how he and his kin, the Custodes, guard HIM on the throne

From a galaxy that ever seeks his demise

But I don't believe there's a single atom of this galaxy that the custodian brotherhood aren't watching

They hear every single whispered threat and treasonous plan, every smuggled weapon, each drop of poison poured into the ears of the faithful

If the Inquisition are the eyes of the Imperium, the Custodians are it's mind

If the Astartes are the fist of Mankind, the Custodians are the force behind the blow

Many believe they never leave the grounds of the Imperial Palace

However

We all learn at a young age that the universe in its entirety IS the Emperor's Palace

When we spoke, he told me

"The mason does not craft the stone, but is crafted by it"

The truth is this, they are everyone

Each faithful soul, each wretch who, in his final moment prays to the Emperor

Is one of them, in his own way

I'm told they are made before birth

He told me that he was born on Terra 39 standard years before the final assault on the Palace by the traitor forces

His father was a stone mason, it seems odd to me now somehow

His skills afforded his family the licenses needed to breed in perpetuity

His father's greatest work

"THE BLESSED FEATHER"

Still stands in the palace today

It has seen over 90 centuries, it has witnessed my whole life and will witness the lives of my children

Caval witnessed the moment that Sanguinius raised the humans upwards just as they began to break!

In those final, hellish days before the siege of the eternity gate

The Custodians saw those humans, caught in the updraft of the angel's faith

During my years as a student, I was made to study picts of that statue daily by my lectors

I was made to behold what faith could create, what war made us into!

I was brought to Terra to set in stone the tale of one of humanity's heroes

Even by Astartes considerations, he was taken at an early age

But he was 19 standard by the time he had completed his apotheosis

His next 11 years were spent hunting beneath the Palace proper

For beneath this ground still lurk beasts, monsters, traitors and worse

It is within those shadows that that holy order is trained

They either leave the dark knowing the truth of the light or are consumed by the perpetual night

It is believed that the Emperor himself grants the gifts needed to walk such hollowed ground

He smote his way through who knows how many traitors

Who knows how many demons of the void

He told me to my face the following

"Beneath compacted streets built by men far smarter than us, my order sounded the call, and the hunt began

The truest challenge of our marshall prowess was the battle against the daemon manifest named

Carathon

A cursed thing of fangs and claws

It took us 4 days of ceaseless conflict to first butcher it's hordes and then to carve that lumbering blasphemy into craps of rotten voidborne meat

After we remerged from those darkened tunnels we realized that we were a part of a new family now

For

Each world that knows the tread of a human foot is a world visited by my family

Each soldier who screams his hatred into the face of an enemy is my brother!

Each lady of each order is a sister of mine, she spreads the faith I exist to guard

I've seen the horrors of the galaxy and simply wonder this

Is that it?"

Most think the Custodians are the last line of defense but I now believe that they are the first witness to each threat

Each blow leveled against our foes by the sainted order has been in transit for millennia

For the universe is a stone

And the Emperor is a mason

A master at work

His craft never ending

His toil, perpetual

But from his inanimate, he carves humanity's future

With faith as his chisel, and our collective hate as his hammer

His son is chiseled more by his new father every single day

For in the God-Emperor's service, the Custodes are made complete

And with the Emperor's patience all of our flaws are chipped away

The circumference of Terra's equator is 40 000 kilometers

If I were to say that the Custodes know each step of those kilometers

Would you believe me?

A million ships land on a million landing sites

Their vigilance can never, ever end

For the God-Emperor is eternal

Despite their efforts however

There are million miles of tunnels that cross this world

Each day a thousand more are bored into this holy soil

They work ceaselessly to know each cavern, each stone and patch of moss

I'm sure they have witnessed secrets that worlds have died for

I myself have beheld relics from empires that no living human could ever learn of

For the Emperial Palace is a world unto itself!

Contained within chambers built 25 000 years ago are the testimonies to humanity's perfection

The proof of our truthful place as rulers of the galaxy

And deep within those halls, behind doors that have laid shut for centuries

Beyond a million murder holes

Beyond galleries containing the sum of human art

Behind the legions of the Terra Imperialis

Behind that final golden portal

HE lives on

And his sons will never rest, their blades never falter

They are his best and brightest

They are all of our faith made real and their spears never dull

They are the chosen heroes

Should you ever cross into the Sanctum Imperialis

Should you ever see those vaulted sacred frescos and monuments to mankind's greatness

And you should see a Custodian!

Regal

Stoic

Fierce and Pure

You'll know you're seeing someone from a myth

He has a new family now, for he was young when he took up the spear

And I believe part of him is still young, after so many thousands of years

Long after I'm dust, fired into the sun

He will remain

And his watch never ceases

Eternal in his ancient mountain of golden power armor

Perhaps before I pass into the light of the Emperor

I will get to see him once more

GLORY TO THE IMPERIUM

GLORY TO THE CUSTODIAN

~flashback end~

-3D POV-

Y/N: 'Seems like that story wasn't just a fairytale. Don't worry grandpa, I will be sure to find it'

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And that's done. Hope yall enjoyed.

The script is from this video: