Karma has a what!? (Assassination Classroom Fanfic) (Karma's little sister~)

Welcome Kiyoko-chan~

Classroom 3-E
LAST TIME
"Huh!? Kiyoko!?" Karma shouted as was standing from his desk. His face shocked.
"ONII-CHAN!" yelled the red hair girl as she ran out of Bitch-sensei legs and hugged Karma. Her height only allowed her to reach to his knees.
Total silence...
"EHHHHHH!!!?!?" yelled the classroom.
NOW
"Wait Karma-kun, what do you mean she is your sister!?" says Nagisa looking quite shocked. After knowing him for 2 years, you think he would know that his best friend has a little sister.
Karma just patted Kiyoko's head. Kiyoko just smiled. "Heeeh~ It means just that. She is my little sister." Kiyoko was wearing a light blue shirt with puffed up sleeves. A sailor collar with a white bow was around her neck. She had a black shirt with suspenders to hold it up in place. (The cover picture)
"I see the similarities but I just didn't think you would have a little sister." Said Nagisa.
"What!? She is a precious angel! How does she have someone as you as her brother!?" Bitch-sensei said shocked as the angel of a girl's brother is the class's prankster. Not to mention it is her brother's fault that everyone calls her "Bitch-sensei."
"I don't know. You can talk to our parents about that." Karma said as sticking his tongue out.
"Hey Onii-chan.." Said Kiyoko.
"Hm?" Karma said staring down at her. Kiyoko just raised her arms. Karma just picked her up and set her on his hip as she hugged him. "Oi Kiyoko, you never finished your introduction."
"Oh ok Onii-chan" Kiyoko stared at the class. "My name is Kiyoko Akabane and I am 5 years old. I like Onii-chan, candy, sleeping, music, and animals. It is nice to meet you" she ended with a smile.
The class stared at her while Karma just sat down at his desk with his sister sitting on his lap.
"KAWAII!!" the girls screamed. The boys just stared at her shocked at her cuteness and innocence. How is she, his little sister? The class thought.
"Hey what are you learning?" said Kiyoko
"Heeeh~ You want to try and learn English Kiyoko?" Karma said.
"Yea!"
"Alright, I'll teach you the basics."
"Yay! Arigato Onii-chan"
The class just stared in shock as the soft side of Karma showed.
"Well let's start the lesson" Bitch-sensei said in a trance like way as the class just nodded. They tried to ignore how Karma was teaching Kiyoko the alphabet. It was an adorable scene where she tried to pronounce the letters. She still didn't quite get it right but it was still cute.
"Well, this class has ended. Time for lunch. After that you will have to work on your assassination skills. Bye bye Kiyoko-chan" said Bitch-sensei as she smiled.
"Bye bye Pretty Lady" said Kiyoko smiled and waved as she looked up from her alphabet. Bitch-sensei just smiled happily. Finally someone understands her beauty. She ran to the back where she stood in front of the siblings. She picked Kiyoko up from Karma's lap and hugged/squeezed her to death her. "Oooh! Kiyoko-chan! You are too cute!" said Bitch-sensei.
"Oi Kiyoko, she ain't pretty. She's ugly. Now get your hands off my sister Bitch-sensei!" Karma said as he forcefully separated his teacher from his sister. "Brat! Shut your mouth!" Bitch-sensei said as she left the class mumbling how an Angel such as Kiyoko is related to a demon like person, Karma.
The class packed up and started heading out to go get lunch.
"Karma let's go out to eat lunch outside." Nagisa said as he came up to the siblings.
"Kiyoko, wanna stay with me for the rest of the day?" asked Karma. "YEA!" yelled Kiyoko. The girls who were still in the classroom was aww-ing at her.
"Ne ne Kiyoko-chan, want some sweets?" Rio said as she showed the girl some gumdrops.
"Yes please" Kiyoko said as she reached for a few gumdrops. She popped them into her mouth before she said thank you.
"Want some chocolate cake Kiyoko-chan? I can bake you some!" said Hara (She is that girl who bakes really good food and eats fast. Yea that girl).
"Ehh~ Honto?" She said as she tilted her head a bit in a cute manner. "Yea! Ne ne Onii-chan!! Guess what! She is making me a cake!" As she pulled on her brother's pant leg.
"Heeeh~ Alright I get some cake for lunch then!" Karma smirked.
"No! It's mine! My cake! Get your own Onii-chan!" Kiyoko said as she pouted.
"Why if I can take some from you?" Karma teased.
"No! My cake!" Kiyoko said.
"Well I'll start making the cake then. Oh yea! My name is Hara and this is Rio and Kayano" she said pointing to the girls respectively.
"Hey!" said Rio
"Wah you are so cute Kiyoko-chan" said Kayano.
"See you later Kiyoko-chan, Karma-kun." Said as Hara left with Rio and Kayano.
"Your sister is getting really popular with the class Karma-kun" Nagisa said.
"Well, she gets it after me!" Smirked Karma
"Hey Kiyoko-chan. I didn't introduce myself yet. I'm Nagisa, nice to meet you."
"Yea nice to meet you too!" Said Kiyoko.
"Let's get going. I am getting hungry and we are getting a cake later." Karma said as he took his sister's hand and his lunch and walked out the front door with Nagisa following them.

Under a big tree with lots of shade:
The trio were sitting down under a large Sakura Tree. Kiyoko was sitting in between her brother's legs while Karma was leaning against the trunk and Nagisa was just sitting next to Karma. Since Kiyoko didn't bring food with her and the girls were still making a cake for her, Nagisa and Karma were just giving her food from their own lunches. It was peaceful and quiet.
"Oi Kiyoko." Karma said gaining his sister's attention who was nibbling on a rice ball given to her by Nagisa. Kiyoko just tilted her head showing she was listening. "How did you get here?"
She finished eating her rice ball before answering. "I get lonely Onii-chan! You aren't there and Okaa-san is always busy to play with me. Tou-san is working but I remember you showing me where your school was. I snuck out of the house when Okaa-san was doing laundry and cleaning the house. I got lost in the big, scary forest!" She said tightening her grip on her skirt. "But but but! The Pretty Lady found me!" She smiled at the boys. "She didn't want me to be alone with that sensei with the black hair and scary face! So she took me with her since she said she has a class to teach. Scary-sensei said to leave me in the room since he said I could be a bother but Pretty Lady said she wanted me to be near her. Then I found you Onii-chan!" Kiyoko ended her story.
"Shouldn't your mom be worried about you Kiyoko-chan? You did sneak out." Worried Nagisa. "I'll call Okaa-san and tell her that Kiyoko is with me. I can convince her to let her stay with me for the rest of the school day." Said Karma as he plucked Kiyoko out of his lap and plopped her down onto Nagisa's lap. Karma walked away from the tree to make a call on his cell.
"Hey! Nagisa-nii-chan!" Kiyoko said as she got comfortable on Nagisa's lap.
"Yea?" Said Nagisa in a slight surprise to be addressed like that.
"We're twins!" exclaimed Kiyoko indicating their pigtails.
"Hehe I guess we are!" Nagisa said as he tightened the ribbons in her hair.
"Onii-chan usually does my hair like this! Demo, keep that a secret ok!" Kiyoko said as she held a finger to her lips. "Okay Kiyoko-chan. The secret is safe with me."
"Onii-chan seems to trust you a lot, so I trust you too!" Kiyoko said happily.
"Eh? How can you tell" questioned the blue haired boy. Kiyoko looked at her brother who seemed to be having a deep discussion with Okaa-san. "Cause Onii-chan put me in your lap. He doesn't like giving me away to people. Pretty Lady hugged me and Onii-chan didn't like that so he pulled me away. But I like the Pretty Lady so I don't care if she hugs me."
That silenced Nagisa. "Heh. You really are your brother's little sister. Not only do you both have red hair and yellow eyes, you guys are both observant." Nagisa said.
"What does that mean?" asked Kiyoko.
"Both are you are smart" Nagisa said as he gave her an egg roll from his bento.
"Yay! I'm like Onii-chan!" Kiyoko smiled as she ate the egg roll.
"You two got comfortable." Karma said as he appeared in front of them with his hands in his pockets. "Kiyoko you can stay with me. Okaa-san said it was okay as long as the teachers are okay with it and you are not bothering anyone."
"Yay! I can stay with Onii-chan, Nagisa-nii-chan, and the Pretty Lady" yelled Kiyoko happily.
"Heeeh, don't be near the ugly hag Kiyoko." Said Karma. Kiyoko just pouted but didn't say anything.
"Well I don't mid her staying in my classes Karma-kun! And neither will Irina! I am not sure about Karasuma but he only teaches your assassinations skills outside so Irina can keep an eye on her!" Korosensei said as he scared the students and 5-year-old. Kiyoko started to tremble as she clutched onto Nagisa's shirt since she was still in his lap. She was scared of the huge, yellow octopus looking thing.
"Oi Octopus! You're scaring Kiyoko!" yelled Karma, mad since Korosensei was scaring his sister.
"A-ah gomen gomen Kiyoko-chan!" Korosensei said. "I'm Korosensei! Your brother's homeroom teacher!"
"H-h-hi s-sensei. I-I'm Ki-ki-yoko-ko." Kiyoko stuttered still frightened from the scare. She might be Karma's little sister and used to him popping out of nowhere but still, it's her brother who she trusted and NOT some huge, yellow octopus that magically appeared!
Korosensei appeared sad that he still scared the little girl. "Your P.E. class is starting soon so you should change into your gym clothes." He left to grade some papers/ look at magazines filled with big chested girl.
Karma just picked up Kiyoko as she buried her head into his chest still getting rid of the shock. "Oi Nagisa let's go"
"I'm coming Karma-kun" Nagisa said as he cleaned up the bentos.
When they reached the school again, Kiyoko, finally getting over the shock looked up to the boys.
"Ne ne, where is my chocolate cake?" she asked as the boys just sweatdropped at her behavior.