[Y/n POV]
*RING!!!*
My alarm clock ringing as I stop it and go to bath and take a shower.
I then put my school cloth and go to dinning room to take my breakfast.
In there, my mother is prepare Isami breakfast while my father reading newspaper.
Y/n: Good Morning… *yawn*
Both: Good Morning, Y/n.
I take a sit and take my bread and it eat.
Miki: Y/n, can you wake up Isami?
Y/n: Ok…
I then go upstair and go to her room and when I open it the first thing I hear is…
Isami: *sleep talking* O- Onii-san… D- Don't… to r- rough~
I look at her with deadpan as I go take a water spray and ready to spray as I hear the next thing that almost make me blush.
Isami: *sleep talking* Onii-san… cum with me! I'm cumming! I… I'll get pregnant at this~
She said with a drooling pervert face
I can't take it anymore and spray water at her as she awake and look at me with a blush as both of us blushing as she run to the bathroom and I notice a stain of 'juice' on the bedsheet. You must be kidding me!?
I facepalm at this.
Ark: "You…"
Y/n: Don't… said it.
Ark: "… Ok"
I then take my shoes and ready to go school as I will not walk with Isami because what happen a while ago.
Y/n: I'm going!
Both: Good luck!
I then go to school as I talk with Ark.
Y/n: "Hey Ark…"
Ark: "Hm?"
Y/n: "How long before the Holy Grail War begin?"
Ark: "If my calculation is right, it about 3 month later. It mean you have a time to train."
Y/n: "I see."
I then arrive at the school as I see Sona and greet her.
Y/n: Good Morning, President Shitori. *smile*
Sona: Good Morning too, Hyoudou-san.
I then enter the school as I can tell the Student Council are looking at me.
I just ignore it of course and keep walking until I arrive at my class.
A minutes later, Isami arrive and when we look at each other we blush and look away. She then sit beside me as we still looking away. The class about too start.
Suddenly…
???: May I call Isami and Y/n Hyoudou?
I then look and see…
A beautiful blonde hair girl.
Wait, blonde hair?
I look at Isami and realize, if Issei is female it mean Kiba too?
1# Male: It Kina!
2# Male: Please go on date with me!
Teacher: Silence!
They all shut up after that.
So her name is Kina.
Teacher: Why you want them?
Kina: It about club activities.
Teacher: I see…
Teacher: Hyoudous you may go follow Yuuto.
I look at Isami and she just nodded.
We then get up and go to Kina.
Y/n: Nice too meet you, Kina.
Kina: *smile* Me too, Y/n-kun!
Y/n: Lead the way…
Kina: *giggle* Why thank you.
We then follow her as the boy on the class like throwing tantrum on me but been silence by the teacher.
I then look at my side and see Isami hugging my arm in a… 'protective' manner by putting it between her breast.
Kina notice and giggle at this.
Kina: Fufufu… my, I don't know Isami-chan has a brother complex.
Isami: S… So?! Onii-chan is only mine!
We lucky no one hear us or not we doom for sure!
I then feel a two mountain on my other hand and see Kina putting my other arm between her breast.
She then stare at Isami as Isami stare back.
I swear, I see a lightning spark happen between this two.
What I got myself into?!
Y/n: H- How about we continued walk to club?
Kina: Fufufu… I think you right.
We then continued walk as Isami glaring at Kina.
We arrive at old house building and enter it.
We then arrive on the room as I notice Koneko who eating chocolate but when she look at me she a bit shaken.
Damn! Is my aura scare her?
Wait, this scene…
I then notice a shower and look like I am right.
It after Issei or Isami right now become a devil.
Y/n: You has a shower on club?
Isami: Onii-chan Hentai! Pervert! Ecchi! Baka!
She said with a blush and pout after that. I said my sorry and tell I am joking.
???: Ara ara~ you such a bold one are you?
I look and see the one of Kuoh Great Ladies.
Akeno Himejima.
Y/n: I just joking, don't take it serious.
Akeno: Fufufu… but I don't mind show it if you want~
Isami: No! He don't need to see your!
Akeno: Fufufu… look like someone jealous~
Isami: *pout* Umu!
Is that the great Umu's Nero from Fate?
???: Sorry for late.
I look the voice and see none other then Rias Gremory.
She then sit on her chair and look at us.
Isami: Why you call us?
I remain silent as we sit on the sofa.
Rias: Do you believe on supernatural?
Isami: Not really…
She then tell Isami about the 3 Faction, the Great War, Evil Piece and Reincarnated Devil.
Isami: I see, but why telling us and what are you?
Rias: We are devil.
She said as she and other show a bat like wings.
Isami look shock at this.
Rias: The other reason why I call you hear because of your brother.
Isami stand up and go in front of me in protective manner.
Isami: I will not let's you take Y/n-nii!
Rias: That's not what I mean.
Isami: Then?
I just sit there in calm manner waiting for the answer.
Rias: Your brother has some dangerous aura around him that rival Four Satan right now. Because of that, I want to ask you.
Rias: Who are you, Y/n Hyoudou.
I smirk and they look alert as I realease my aura more that make them scare.
Y/n: And why should I tell you, mongrel?
[TO BE CONTINUED]