My Hero Academia: Killer Quirk!!

"What is it this time?"

Flying in the air and overlooking the island, Aiden picked up another phone call from the island's hero office.

"We've got a missing child."

'A missing child? I thought everyone on this island knew each other.'

"The child's name is Shimano Katsuma , according to the report, he's been separated from his sister Shimano Mahoro."

"Where was he last seen?"

"The park on the hill. You know the one right?"

"Yeah." He nodded before looking in the park's direction.

"I'll call you back if I have any problems."

"Okay, I'll see you later."

"Yeah." Hanging up the phone, he combusted the astral energy below his feet and shot towards the park.

---

-Park-

"Okay, so just stand here and wait for the heroes to arrive. I'll hide up on the slide and time them. If they take to long it'll prove that heroes aren't as great as they appear."

Standing on the park's soil, a small brown haired girl dressed in pink overalls and a big summer hat lectured a younger looking boy in blue whose appearance had a striking similarity to hers.

"Understand Katsuma?" She asked.

"Mmm." The boy nodded while gripping an action figure of the number 4 hero Edgeshot.

"Good, now I'll-

"Eh?"

Before she could finish her sentence, a heavy object seemed to crash into the ground behind them as a large dust cloud invaded the air covering their figures.

"Urgh!!" The two shielded their faces.

While the dust cloud blew everywhere, two glowing purple orbs could bȧrėly be discerned.

"Whilst I commend your plan on discerning between whether heroes are all that or not, the fact that you roped your little brother into this is quite disappointing Shimano Mahoro.

*Deep Breath*

"Burst."

*SWOOSH!!!*

"Urghhh!!!"

"Yo." He waved.

"H-How do you know my name?" Seeing Aiden's imposing figure, the little girl couldn't help but feel like she might actually get in trouble for reporting a false case.

Instead of answering her, Aiden looked at the two of them up and down. And after seeing that the two weren't injured in the slightest, he finally answered.

"1 minute and 27 seconds."

"What?" Mahoro and Katsuma made a confused face.

"That's how long its been since I was informed of your missing person's case." Smiling at the two of them, he walked up to the pair and knelt down. "So? How did I do?"

"Eh?"

'What's wrong with this guy? He knew that I filed a false report so why isn't he angry?'

While Mahoro was confused by Aiden's actions, Katsuma looked up at him with sparkling eyes.

"A hero." He whispered while looking at him with awe.

Seeing this, Aiden turned his attention onto the small boy and held out his had.

"And you must be Katsuma, nice to meet you, I'm Aiden." He said while showing off a comforting smile that not many people had seen before.

"Aiden..." Katsuma repeated holding onto his hand.

"Well my hero name is Avenger, but you can call me Aiden."

"Mmm!" He nodded happily.

Looking at the small child, Aiden estimated that he might have been only a year younger than Eri. His sister on the other hand seemed to be around 9 or 10 years old.

"So little lady." He turned back to look at Mahoro. "How did I do?"

"Humph!! Barely passable! Our older heroes would have been here in 1 minute and not 1 minute and 27 seconds."

"I doubt that."

"What! You calling me a liar!"

"A liar? I just think you're a bit too imaginative." He teased.

"Am not! I'll have you know I'm very smart!" She defended.

"Really? Then what's 9x10-3+12 Million and 9 divided by infinity x6?"

"Eh? Its... Its..." Falling into silence, Mahoro looked down and started counting on her fingers.

"Its... erm... Its... Urgh! How am I supposed to know that! I'm 10!!"

"Hoh, but didn't you just say that you we're and quote, very smart?"

"I-I."

Watching the two squabble and seeing his sister turn red in the face, Katsuma couldn't help but burst out laughing.

"Katsuma..." Seeing her usually reserved brother laugh so loudly in front of a complete stranger, a look of confusion covered Mahoro's face.

'So he can laugh after all.'

Seeing the kid laugh his heart out, a small smile adorned Aiden's face. From what he could tell from eavesdropping on their earlier conversation, Mahoro seemed to be the dominant one in their relationship. And after seeing how quiet Katsuma was, it made sense as to how these two became this way.

*Ring* *Ring*

"Hello?"

Touching the side of his headphone, he picked up the call from the hero office.

"Yeah, everything's fine on this end... The kids are fine as well... Yeah, he found his sister... Okay, I'll head over right now." Tapping the side of his headphones again, he disconnected the line.

"So, it looks like I've got to go."

"You're going already." Katsuma looked up at him with sad eyes.

"Afraid so, unless your sister is up for more math equations?"

"GO AWAY!!" Mahoro yelled once she heard him mention maths.

Grinning at her reaction, a light purple glow covered his body as his figure started rising up from the ground.

'He can fly!!'

"Whoa!" Katsuma and Mahoro's eyes went wide.

"Catch you guys later, oh! And don't make anymore prank calls, the other heroes might not be as nice as me."

"Don't tell us what to do!" Mahoro shouted.

"Sure, just give me the answer to that maths equation."

"..." Turning red in the face again, Mahoro fell silent.

"Well, see ya." He waved, but just as he was about to go, he stopped and turned to look at the action figure in Katsuma's hand.

"If you're gonna get an action figure of a cool hero, I recommend the Rabbit hero Mirko."

"Mirko." Katsuma repeated as if to memorize the name.

"Yeah, she's really cool, anyway, see ya later kids." Waving again, he took to the skies and disappeared from sight.