Y/n's house Los Angeles. 6:40 AM

BEEP!

BEEP!

BEEP!

Smack

Y/n: (Groans)

Y/n gets up, have a shower and eat breakfast.

Y/n's phone:

https://youtu.be/V6OXwTqpWbs

Y/n pull out his phone

(Surprised? People, are you surprised that a old ringtone is played in a new phone?)

Y/n: Hello?

S/n: Hey your up so is your outfit ready?

(Sister's/name)

Y/n: Yep all set

S/n :Cool see you there!

Y/n closes his phone and pulls out his cosplay outfit from the wardrobe and puts them on.

Y/n: Awesome

but thanks to y/n's training his body can wear the suit with no problem

Y/n locks his house and calls a cab.

Y/n looks at the time

7:20.

Y/n: Alright still more time.

then a cab pulled over

Y/n got in the back.

Taxi driver: Whoa nice costume, so where you want to go?

Y/n: Los Angeles convention center.

Taxi driver: No problem.

Time Skip

Taxi driver: And we here.

Y/n: Oh sweet (Hands him 30 dollars) thanks.

Taxi driver: No problem have fun mate.

Y/n gets out the taxi and many cosplayers saw y/n in his costume.

Cosplayer 1: Whoa look at his costume

Cosplayer 2: so cool!

Cosplayer 3: it's the marauder from doom eternal!

???: Well well well look who's here.

Y/n saw his friend coming over

(Not made by me but a great creator)

Y/n: Hey S/n!

S/n: I'm glad you came so ready to show our stench of awesomeness?

Y/n: Hell yeah.

they enter the anime Expo and saw many cosplayers and took photos by other cosplayers

https://youtu.be/MfXm03OyMwc

TIMESKIP

3:10 PM

Y/n and S/n had fun in the expo they walk to S/n house which is not far they were outside of the building under construction

But then they heard the crane moving

https://youtu.be/LWlj5nEqRCE

Y/n: Look out!

Y/n pushed S/n away but he got impaled by a falling pole.

S/n: (Gasp) Y/N!

S/n runs to y/n.

Y/n: (Weakly) hey S/n

F/n: Why why would you do that for?

Y/n: It's because your my Sister and I would protect you with my life.

F/n: (Sobs) Brother.

Y/n: Hey don't cry.

y/n wipes her tears off.

Y/n: Smile for me.

S/n smiles.

Y/n: There you go.

S/n: I love you brother.

Y/n: I love you to sis, goodbye.

then y/n closes his eyes and went limp.

S/n: Y/n? Y/n!

s/n cries into his corpse wishing it wasn't real.

Meanwhile in Limbo.

Y/n opens his eye's to see him siting on a chair.

Y/n: Where am I?

???: YOUR IN LIMBO SON.

Y/n heard the voice and looked behind and saw god.

Y/n: God?

God: Yep so you died and saved a life in the process, I should give you two choices but since you saved a life, I'm giving you three choices.

1 you can be reborn as a baby but with no memories of your old life.

2 You can go to haven but you lose your physical body and end up like this

Y/n: (No thanks)

And the third choice is being sent to an another world with the powers you can chose.

Y/n: well after what you said I chose option 3 then, I mean who doesn't want to chose option 3.

God: well most people who are 30 years old or above.

Y/n: Yeah normies

God: So since you chose option 3 what you like to take with you?

Y/n: yes I like to take the form of the marauder from doom eternal.

God: Are you sure?

Y/n: Yes for three times.

God: Okay then and what universe you want to go?

Y/n knew what he wanted to go.

Y/n: The demon slayer universe.

God: Alright then good luck.

a portal opens and y/n walks into it and it closed.

God: But why chose a demon?

MEANWHILE IN THE INFITY CASTLE

a Red portal appeared and a figure walks out of it

As y/n exit the portal it closed.

Y/n: (Checks himself out) Alright, but where am I?

Y/n looks around then a biwa note was played and y/n realized.

Y/n: Aw shit

???: Who are you? 

Y/n turns around and comes face to face with non other then...

Y/n: (in all people I could meet it just had to be muzan Kibutsuji in his female form!)

Muzan: Lower your head and crouch down Intruder.

.

.

.

.

Y/n: No.

Muzan: What?

Y/n: You think that you can command me to bow to a crossdressing demon like you? Heh That's rich.

Muzan: (Growls) You dare have the audacity to Mock me?!

Y/n: Yes I do dare and I'm not sorry.

Then Muzan's arm transformed into a tendril

Muzan: Then you will Die!

his tendril arm charges at you but you shot it with your shotgun

Muzan: (grunts in pain) You'll pay for that!

A note plays and the castle shifts into s room with 4 sliding doors.

y/n knew what will about to happen, thanks to his new power his enhanced hearing heard flesh whooshing at him, he activated his axe and sliced it off

Muzan grunts in pain and attack again, Only to found out his cut off arm isn't regenerating.

Muzan: WHAT?! HOW?!

A note plays again and y/n was back to the place where he first arrived.

Muzan and other demons were waiting above him

Muzan: Enough! You will surrender NOW!

Y/n: Nah ( A Portal opens) See you later freak.

Y/n turns around and steps into the portal but first he flips at him.

Muzan Don't you dare!

but he was to late the portal closed.

Muzan: (Growls)When I find you, I'm going to make you suffer.

TBC