It was another Day at school as you were pretty much Just doing your Usual School President thing when suddenly the door opened up and A Deliquient walked in and everyone recognized him.

Student 1: Isn't it that Delinquent Guy?  Fudatsuki-San right?

Student 2: Yeah I heard he's A Total Sister-Con. How he always fixes his sister's hair bow and how he lets her Kiss him on the neck when nobody is Looking.

Student 1: Weird Guy.

Student 2: Ssssh! Don't say that or How his sister is cute in front of him! You'll get your ass Kicked!

Y/n: Hello Fudatsuki-San, What do you need Today?

He then presented you with A Love Note.

Fudatsuki: I Know you sent My Little sister those Love letters so stop it, before I'm forced to take immediate action.

Fudatsuki (He is an Older Student of Star Academy and is A Well Known sister-Con literally Threatening people who would ever dare hit on his sister even for calling her cute/ In Reality He and his Little sister Kyoko are hiding A Secret and he Wants to Protect her because of that/ He actually has A Crush on A Former student Body President)

Y/n: No I didn't.

Fudatuski: Lies! I know you did! You already have so Many Girlfriends! You're trying to add my Sister to that, I know it, and I won't Let that Happen. Now You better back off before-

Just then A Younger girl walked in and slapped him across the Face!

Fudatsuki: ACK!

Y/n: Hey Kyoko.

Kyoko: Big Brother, stop acting like A Damn Sister-Con, and come with me! I'm Waiting!

Kyoko (Fudatsuki's Little sister/ She is A Serious girl with A Dominant Personality, Sharp Teeth, and the ability to take no one's Crap/ She is never seen without her Bow in Public/ She Always teases and her knocks her brother around for being A Dumbass)

Fudatsuki: Oh Right? Your'e Meal.

Y/n: (Thoughts) Meal? Is he feeding her A Bento Box? I know My Girlfriends do that to me.

They then left with Fudatsuki Giving anyone who tried to Call Kyoko Cute A Death Glare.

Y/n: Hm, This Mystery of him being A Sister-con or not Just keeps getting deeper. It's my job as student club president to investigate. But would I really almost ruin A Possibly sweet sibling moment to learn the Truth? .... Of course I would.

You then followed them both to the Roof and you saw An Image of Looks like the two of them are Kissing.

Y/n: (Thoughts) What!? They're Kissing!? (Out of thoughts) Hey! What are you two doing!?

They then shifted Position and you noticed that Kyoko's Sharp Teeth were on her big brother's Neck drawing Blood as she was drinking it.

Y/n: Wait A Second...

Fudatsuki: No! It's not what you think!

Y/n: She's A Chinese Hopping Vampire! A Jiangshi!

Fudatsuki: Oh... It is exactly what it Looks like...

Kyoko: Big Brother I need more Blood. I'm Still Hungry.

Y/n: Cute!

Fudatsuki: STAY AWAY FROM MY SISTER!!