Katsuki's Baby Sister

{ 41} Sports festival [3]

Third pov

"GAAAAAHHHHH!" The scream caught the attention of the four kids.

They turned to see Katsuki sitting on the ground and screaming his lungs out. Shiyoko smiled knowing exactly why he was screaming.

"Didn't he get second place?" Samurai asked raising an eyebrow.

"Yep."

"Then... why is he screaming?"

"It's Katsuki, don't question it..."

Shiyoko laughed shaking her head as she ran over to her fuming brother. She stood in front of him and like a child caught doing bad, he pouted and refused to look at her. Shiyoko tilted her body to the left to look at Katsuki.

"Aww....is nii-chan pouting?" She smiled and patted his head "There there, it's okay. You still have a chance to be no.1 you know." Katsuki swatted her hand away

"Shut up! Stop petting me like I'm a fucking dog!!" Instead of listening Shiyoko jumped onto Katsuki and began to mess up his hair.

"But your hair is so soft!" She laughed as Katsuki gripped onto her and screamed which made her laugh more.

"Get the fuck off me Aoimoku!!!"

"No way. Carry me Bakuchiku!"

"Hah!? No way!" Despite him saying that he got up off the ground holding her to him so she won't fall.

"Ne, let's go get food! I'm hungry and I know you are too!" Shiyoko smiled.

"First, wipe the blood off your nose dumbass! You're getting blood all over me!" They walked off leaving behind Katsuki's team.

"At least he's calm now..." Mina sighed smiling.

°^° °^° °^°

"You... You All Might's secret love child or what?" Shoto's voice rang through the hall.

Katsuki and Shiyoko stood around the corner listening to Izuku and Shoto's talk about how he got his burn scar and why he refuses to use his left side in battle. While Talking Shiyoko buried her face in Katsuki's chest. Endeavor...sounded a lot like her father.

By the end of their talk even Katsuki knew how bad Shoto had it. Both waited until the other two were gone to talk.

"Hey...Shiyoko...what would have happened if your old man had taken you away?" Katsuki asked softly.

Shiyoko went still in his arms, flashes of gaint tanks filled with water going through her mind all the experiments he had in waiting to test on her. All the experiments he did test on her...

"I...He...He would have experimented on me more, to make me his ultimate weapon. I'd be stuck in a tank filled with water to make sure I unlocked the full version of okaa-san quirk...once that happened he'd increase everything from there." Katsuki's hold on Shiyoko tightened "Endeavor...is a lot like my father..." He couldn't disagree with that.

°^° °^° °^°

Shiyoko sat in the lunch room with the boys, her mind going back to Shoto and how hard he had it. She thought back to before she ran away. In her short two years alive she had suffered but she escaped and, two years later, she found happiness. Now as she looked at her friends she can smile and say she made it. Now she hopes someone will pull him out of the dark too.