Todoroki's Little Sister

{Crossover/ AU }Sister?! Since When

Third pov

It happened so fast that neither party were prepared.

An explosion. 

Right in front of them, right out of the blue, in two completely different locations, and it took only two people. 

"Asami!"
"Shiyoko!?"

They slipped right out of their brother's arms, and the portal closed before they could follow.

"Fuck!?" the two cursed, worry and confusion surging through their bodies. Their world turned upside down in a second.

"I am so sorry!" a little boy stood where they once were, "I didn't mean to!"

"Explain. Right now!" 

[ ] [ ] [ ]

Class 1-A was in and around their dorms. It was Saturday, and Eraser gave them the day off. Some of them were in the kitchen, some in their rooms, and some in the living room playing various games.

"Kaminari, you're cheating!" 

"I am not!" 

"He must be!" Kirishima, Sero and Kaminari were playing video games on the TV. Mina sat behind them, cheering them on. Bakugo was beside her, aggressively typing on his phone. The two of them were the winners of their games, and now they were waiting for one of the others to win again to decide on the ultimate champion. Bakugo said it was childish, but he played anyway, voting himself as the ultimate champion.

"Holy shit-" a portal opened in front of the TV. The boys instantly jumped back, scrambling to their feet and into fighting stances.

"Finally! Something interesting!" Bakugo shot to his feet, going as close as possible to the portal. He didn't dare step too close, in case a hand came out and pulled him through.

"Not the time, Bakubro!" Kirishima pulled him back slightly, not wanting the ash blonde so close to the portal either.

"Villains?" Todoroki just stepped off the last stair when he saw the portal as well. His eyes narrowed, waiting as he cautiously approached. Something felt off, something was pulling him towards the portal. Bakugo felt the same, but he didn't step closer. They stood beside each other

"Mina, Sero, get sensei!" Kirishima ordered, his eyes not leaving the portal. 

"On it!" The two jumped over the couch and ran from their dorms. By now, the other students noticed the odd portal in the dorm living room and gathered around. They were all cautious and prepared for anything, quirks at the ready.

What they weren't prepared for was screaming. It sounded a second before two girls flew out of the portal, dropping right before Bakugo's feet. Said blonde stepped back quickly, explosions popping in his hands as he prepared for either one of them to attack.

"Aw..." the two groaned, lying on the floor. They seemed dazed and in pain. Upon closer inspection, the girls were teens, younger than they were. Middle schoolers, probably. One had light pink hair with red ombre at the bottom. She looked 12 or 13 years old. The other had light blue hair, and looked around the same age. 

Both girls sat up, rubbing their heads in pain. Their eyes opened, revealing a pair of multicoloured eyes on the pink-haired girl and a pair of sea blue eyes on the blue-haired one. They gave each other confused looks.

"Who...?" but they shook their heads, pain written in their expressions.

"Who the hell are you?!" Bakugo finished their question. But his sudden yell seemed to frighten the girls, and they acted on reflex. They shot to their feet, eyes unfocused as both shot ice from their hands, creating a line to block them from who they thought were their attackers.