[FLASHBACK YESTERDAY]

So Shido follows me and hears and saw me summon my sword, well, I do not want him to know before the time is right hmmm......I better erase their memories now..

Y/N=Hey kotori, Shido come here I want to talk about something

They then come toward me

Shido= what is it y/n*rude tone*

Kotori=yeah what is it

Y/n=STAND STILL

I then snap my finger and use Quicksilver style to slow down time and summon Nevan to erase their memories, then I resume back Time.

Kotori/Shido=huh?? What just happened?

Y/n=nothing happen.

[FLASHBACK END]

PRESENT TIME

Well, now I was in class, I erase Shido and Kotori memories
Yesterday, but I just erase memories when they asked me about how I summoned my Sword and my conversation with Kurumi.

Then When Kurumi entered the class origami looking shocked like she killed her yesterday and come back live.

Then I walk toward Kurumi.

Y/n=Kurumi!! Can I have a private talk with you

Kurumi=okay.

I and Kurumi Now walking toward the rooftop

AT ROOFTOP

Kurumi=so Y/n what do you want to talk

Y/n=just make sure you still remember what I say about Shido

Kurumi=sure. I still remember my promise. Y/n

Y/n=hey Kurumi what do you mean spirit when you introduced yourself to class

Kurumi=that is no need to tell you

Y/n=then how about your relationship with Shido?

Kurumi=ara~ara are so you jealous y/n

Y/n=whatever I don't care, just don't dare you to hurt him, understand?

Then I teleport from the roof

TIMESKIP

At home, I just eat strawberry sundae while watching tv.

Then Shido walk toward me

Shido=y/n what are you talking with Kurumi this day

Y/n=i not required to tell you and are you jealous when your girl talks with other guys? haha you Will never be a good husband you know.

Now Shido show some anger

Shido=where does that come from?!! I just ask you a simple question-

Y/n=then I decided to not answer it any problem?

He clenched his fist

Shido=you are getting on my nerve!!

Y/n=calm down, I don't want your Harem to give you B.P pills

Shido=you are really rude!

Y/n=but Shido, don't you like the way you talk to me

Shido=what?!! You know what just get out from my way

Y/n=then go get your way

I then continue watching tv while eating a strawberry sundae

TIMESKIP AFTER SHIDO FIGHT WITH Y/N

Y/n POV

I walking toward the kitchen and help Shido make a dinner

I started to help him but he grabbed my hand

Shido=i don't want these dishes to be polluted by your hand here

Y/n=are you still mad about our talk earlier? Then I am sorry

Shido=just get lost nobody wants to stay with you!

Y/n=hey there's a kid here you know don't bring our fight in front her, and I Will leave from this house when everyone is sleeping. so then you can have a goodnight sleep with your girl

Now Shido had some shocked expression

Shido=wait no, you got it wrong

Y/n=what's wrong?, I got it right Shido, Lately, your attitude to me was really rude and Kotori ignored me when I tried to talk to her like she was avoiding me like I did something really bad, I was just asking where you were when the spacequake was going on and why you had so many girlfriends living in this house and after that, your attitude towards me changed drastically,
Better I get out from this house before I got more depressed

I then went to my room and pack my thing

TIMESKIP MIDNIGHT

Y/n=bye bye Shido have fun with your girl and don't do anything to Kotori or Yoshino

Shido=o-okay are you alright alone

Y/n=stop pretending like you care, please

Shido POV
I am really sorry y/n I wish I can tell you everything

Kotori POV
I don't know, but I feel unhappy when y/n leave this house, after all, he still my brother

TIMESKIP NEXT DAY

This day is Sunday I have a part-time job in a shop in the mall today and I must get ready for my first day

AT SHOP
Time skip

Boss=wow you are really good on your first day, good job

Y/n=thank you sir

TIMESKIP

Now is night, now I walking toward the park and I remember my past with Kotori and Shido

[FLASHBACK]

Shido=ha ha you can't catch me y/n

Y/n=hey you is too fast that not fair

Kotori=hey brother I want join too

Shido=oh Kotori okay

TIMESKIP

Shido=Hey lets us be like this forever right brother, right little sister

Kotori=yes ONII CHAN!

Y/n=yeah b-brother

[FLASHBACK END]

Y/n=they are lies, Lies! Lies! Lies
*While crying*

slowly tears came out of my eyes

Y/n=why do I trust them as my brothers...what a fool I am
*While crying*

Suddenly white portal appeared not far from me

Then a demon get out of that portal and run toward and try to attack me.

BEOWULF= SPARDA!!!YOU THINK YOU CAN GET AWAY FROM ME AFTER YOU SEALED ME YOU TRAITOR

BEOWULF=YOU BETRAY YOUR OWN KIND FOR A FILTHY HUMAN!

BEOWULF=YOU BETRAY LORD MUNDUS AND SEALED ME ON TEME-NI-GRU!

BEOWULF=AND YOU WILL PAY FOR WHAT YOU DID!

with the blink of an eye y/n slashed Beowulf head in two with Yamato

Y/n=KEEP SILENCE

Beowulf=I-IMPOSSIBLE YOU KILL ME EASILY-

After that Beowulf soul fly toward y/n and Transform into a glowing white gauntlet

Y/n=wow cool new weapon I think I have to test it here

Then y/n charge his fist and punch the ground like this

The fist caused a huge explosion in the park

Y/n=perfect, now I must go from this park before someone watching

Then y/n teleport away from the park

AT FRAXINUX

No one POV

Shido=i hope y/n is alright

Kotori=stop thinking about him, he can take care of himself-

Reine=commander! I detect a big explosion from TENGU park

Kotori=What!is that a spacequake?!

Reine=i think no, I think that is not spacequake

Kotori=show me the place

And then Reine show TENGU park and the place was destroyed

Kotori=what the heck is happening in that park

Kotori=Reine Show me the tapes of what's been going on around there

Reine=yes

Kotori=okay let see what happen

and then the footage plays

Kotori POV

Then I see y/n crying in the park at night

Kotori=wait is that y/n

Shido=he is crying in the park you see

Kotori= yes I see

Y/n=they are lies Lies! Lies! Lies!*while crying*

Y/n=why do I trust them as my brothers...what a fool I am

Shido=now I feel so guilty to him

Kotori=me too, what have I do

Shido=hey look something appears near y/n

Kotori=what is that Reine?

Reine=i not know, I think that is a portal

Kotori=portal?

I then see I strange creature come out from that portal and run toward y/n and try to attack y/n

Shido=what the heck is that creature, that creature try attack y/n!

Kotori=silence Shido

Beowulf= SPARDA!!!YOU THINK YOU CAN GET AWAY FROM ME AFTER YOU SEALED ME YOU TRAITOR

Kotori=sparda?Traitor? What that means?

Shido=hey isn't y/n's last name is Sparda

Kotori=yes but why that creature call him Traitor ?

Kotori=does that means the creature is eyeing y/n because he is a "Traitor" or something

BEOWULF=YOU BETRAY YOUR OWN KIND FOR A FILTHY HUMAN!

Shido=what that creature means is y/n is not human!

BEOWULF=YOU BETRAY LORD MUNDUS AND SEALED ME ON TEME-NI-GRU!

Kotori=lord Mundus?? Who is that and what is Teme-ni-gru ?

BEOWULF=AND YOU WILL PAY FOR WHAT YOU DID!

I then see y/n hold a katana

Y/n=KEEP SILENCE

Beowulf=I-IMPOSSIBLE YOU KILL ME EASILY-

Kotori=huh?!what just happened he even not moving but he killed that creature

I then see I bright light fly toward y/n and that light Transform to a 
glowing white gauntlet

Kotori=huh

Y/n=wow cool new weapon I think I have to test it here

I then see y/n destroyed that creature dead body

After that, I see y/n punch the ground

Kotori=well that explain the explosion and destruction

TIMESKIP THE NEXT DAY

Y/N POV

I was in the classroom not do anything.

Then I see Shido walking toward me

Shido=y/n can I talk to you

Y/n=okay

Then I follow him toward the roof

Y/n=okay now talk

Shido=y/n what happen to you last night

Y/n=nothing happened, now if you just asking that I Will leave

Shido=i see you last night crying in the park y/n.

Y/n=stop stalking me weirdo.

Shido=hey that rude.

Y/n=whatever I leave.

Then origami block my way

Y/n=what do you want?

Origami=say sorry to Shido now!

Y/n=i don't care

She then tries to punch me but I parry her attack

Y/n=don't mess with me origami this is not your business

Shido=hey let her go

Shido then punch me in the face

Y/n=thats it our relationship ends here!, now I not your brother again!

I then run toward my classroom

Shido POV

I see y/n run away

Origami=what happen to him Shido

Shido=long story' origami

Back to y/n
I then sit back on my chair then fall asleep in the class

TIMESKIP

Y/n POV

When I wake up I see all student passed out and when I looked out the window I saw that the whole school area was surrounded by a barrier.

Then I feel a big energy from the rooftop.

Then I quickly run to the rooftop

When I open the door I see Kurumi with her clone attacking Shido, Tohka, Kotori, origami. they all laying on the ground.

Y/n=HEY!! WHAT THE HELL IS HAPPEN IN HERE

All of them[except Kurumi]=
Y/n!!

Shido=y/n please go away from here

Kotori=y/n this place is not safe please go!!

Y/n=SHUT UP!!!

Y/n=KURUMI I WAS TOLD YOU TO NOT HURT THEM!!

Kurumi=ara~ara Y/n I am sorry I can't keep my promise.

She then shot a bullet toward me but I parry the bullet with my royal guard style

Y/n=Kurumi you just Made a big mistake

I then teleport behind her with Trickster style and kick her, she then slammed to the wall.

I then summon Yamato and slash all Kurumi clone

Y/n=hey are you guys alright

Shido/Kotori=y-yes

Kotori=hey y/n what the heck is happening with you

Y/n=no time to explain, step behind me

Shido=but y/n

Y/n=NOW!!

Then they all step behind me

Y/n=look like I must kick your ass Kurumi

Kurumi=i want to see you try

Then she keeps shooting me but I easily parry her attack with the royal guard

Y/n=is that all you got haha

Kurumi=don't underestimate me y/n

Kurumi=ZAFKIEL!~Aleph

I see Giant clock behind her after she said that then she shoots herself and then her speed is increase

Then she runs toward me and attacks me with her gun.

I quickly unsummon Yamato and summon force edge and parry her attack

Y/n=hmm not bad.

She then backs away from me

Kurumi=ZAFKIEL!!Zayin!!

Then he shot me but I parry her attack but suddenly my time is freeze

Kurumi=goodbye y/n*smiled*

She then shoots me right in the head then my time resumes again

Kotori=y/n no!!*crying*

Shido=NO!!

Y/n=man that hurt*while searching the bullet in my head*

Kurumi/Shido/Kotori=NANII?!!!

Y/n=ha haha you also can control time huh.

Kurumi=What?!! ZAFKIEL!!! Het!!

She then summoned hundreds of clones.

Kurumi=any last word

Y/n=i not care

Kurumi=then Die!!!

Then the clone grabbed me and ganged up on me and all the clones fell on me

Kotori=onii Chan!! No!!

Shido=Y/n!!!

Kurumi=this is the end of you

Y/n=is that so?

I then Transform, my transformation causes an explosion and makes all the clones were bouncing in all directions

Suddenly the color of the sky had turned pitch black and red lightning flashed from the sky

Shido POV

That explosion caused a swarm of smoke around y/n, when the smoke disappeared I saw....

I Saw y/n but His form changed like a monster or demon ... instantly I was silent and couldn't move, my body was shrouded in fear when I saw y/n

Kotori POV

W-what is that, is t-that y/n...
B-but his form....

No one POV

y/n=NOW KURUMI THIS IS THE END FOR YOU*demonic voice*

Kurumi=No!!No!!No!!*really scared*

She then summoned hundreds of clones to y/n but y/n summon Yamato and.........

Y/n=SLAY..ALL!!*demonic voice*

Then in the blink of an eye, all of her clones were killed..

Y/n=USELESS*demonic voice*

He then unsummon Yamato and fly toward Kurumi

Kurumi=ZAFKIEL!! Zayin!!

Then she shot y/n with stop time bullet but Y/n still can move.

Kurumi=NANI??! What are you!!

Y/n=I AM DEMON*demonic voice*

Then y/n summons his Sword

Y/n=PREPARE FOR YOUR DEATH KURUMI!*Demonic voice*

Kurumi=NO!

She then summoned hundreds of his clone but y/n kill them all with one swing

Y/n then grabbed Kurumi hair and lift her in the air

Y/n now ready to stab her with his sword but...

Shido=y/n stop

Y/n=WHY WOULD I LET HER, SHE tries TO KILL YOU!*demonic voice*

Shido=please y/n let her go, I can seal her power so she can't hurt anyone again.

Kotori=ONII CHAN!!

Y/n then look toward Kotori

Kotori=ONII CHAN! please stop don't kill her, we just want to seal her power

y/n then fell silent

Y/n=AS YOU WISH!*demonic voice*

Y/n then throw Kurumi to the wall hardly

Y/n then landing on the ground

Shido=t-thank so m-much y/n

Y/n not answer

Kotori=t-thank oni Chan

Y/n then looking toward Kotori madly

Y/n=DONT EVER CALL ME ONII CHAN AGAIN! I NOT YOUR FAMILY NOW*demonic voice*

Kotori then fell silent in fear

Y/n then fly to the sky

Leaving Kotori and Shido

To be continued