Stain-Remover

"My body!"

Feeling his entire turn numb, Aiden found himself falling face first into the dirt.

'Shit! Is this his quirk?'

"You did well kid." Stain commented walking towards him with the knife in hand. "To think a child could leave so much damage on me... I'm getting rusty."

Standing above him, he raised the knife high into the air before stabbing down.

"Cross-san!!" Iida yelled.

Seeing the knife plunging down towards him, Aiden couldn't help but grin.

"Shift."

*CLANK!!*

"He teleported!" Stain's danger senses skyrocketed as he felt a life threatening attack appear above him.

*BOOM!!*

"Oh? You managed to dodge."

"How?" Stain asked seeing what should be a paralyzed Aiden standing before him.

"Simple really." Aiden smiled and constructed two knives in his hands. "Not to long ago I saw a guy who could use brainwashing to control his opponent's actions. The world's a big place and the likely hood of someone having a similar quirk is quite high. With this thought in mind I had to figure out a way to counter this ability. That's when I started experimenting, hypothesizing that he could only control my actions and my consciousness was still active, I concluded that I could still subconsciously use my quirk." While talking a thin layer of purple light surrounded his body.

"Since my control over my energy is at such a high level, I can direct it into any region of my body and through the use of my energy I can use it to manipulate my limbs... I call it Marionette. It was designed with the sole purpose of dealing with opponents who can affect their opponent's body."

Finishing his sentence, Aiden charged towards Stain with knives in hand.

*TING!!*

*TING!!*

*TING!!*

*TING!!*

As the two crossed blades, Aiden felt his marionette ability improve as he was slowly getting accustomed to using it in battle. Stain on the other hand was starting to get a headache. While his skills may be impressive, compared to Aiden who had been training his whole life against people who were stronger than him, Stain's ability just couldn't match up.

Striking at his body, Aiden started utilizing a breathing technique used to regulate energy control and increased his attack speed. Mixing in some Astral Slashes, he easily pushed Stain back and landed several cuts on his body.

'Dammit, Dammit, DAMMIT!!'

Jumping back, Stain gripped his broken knife as blood poured down from his arm.

*Heavy Breathing.*

"Who... are you?"

"Just a simple executioner." He replied.

"I see..." Looking at the boy's glowing eyes, Stain smiled and laughed. "You're just like me aren't you! You've also suffered under the hands of these fakes! Ahahahaha, to think I wasn't the only one who held so much bloodlust! You've seen it haven't you!? The truth behind this wretched society built on lies!"

'Suffered under the hands of heroes?' Watching their interaction, Iida was confused.

Aiden stood in silence as Stain continued to spout his theories.

"Pffthahahahahahahahaha." He suddenly burst out laughing.

His sudden laughter caught Stain by surprise as he looked at the boy.

"What's so funny?"

"Ah, its just... that I was wrong about you." He said holding back his laughter.

"What do you mean?" Stain's brows furrowed.

"Everyone talked about how dangerous and threatening you are, but after meeting you... Only one sentence keeps playing itself in my head."

"A sentence?" Stain said confused by what he meant.

"Yeah." He nodded. "Do you want to know what it is?"

Before he could voice his answer, Aiden shifted to his side and said "Get on my level scrub."

Turning his head to the side, Stain's eyes widened as a purple pole like object enlarged itself in his eyes.

*BAM!!*

Pain spread throughout his head as his thoughts became jumbled and his vision turned black. His eyes quickly closed as his body slumped to the floor.

Seeing Stain's unconscious figure, Aiden stopped his breathing technique and used his Marionette ability to walk towards the wall before slumping down on it.

Due to his sensing technique, he found a figure approaching their position at a rapid speed so he knocked Stain unconscious and ended the fight quickly.

"Good job kid..." The injured hero who had watched the entire fight said weakly.

"*Sigh* Shut up."

---

Not to long after Stain's defeat, Deku and Shoto arrived on the scene and helped the injured pro hero and Iida to their feet.

Holding out his hand, Shoto gave Aiden a hand up.

"Is it true you took down the herokiller?"

Stretching his limbs, Aiden checked his energy levels before saying. "He wasn't that strong. If you fought him one on one with no one in the way, then you could probably beat him with a glacier attack."

[A/n: I only believe that Shoto couldn't solo him due to the others (injured pro hero) being in the vicinity of his attack. If it was a one on one fight, I think it would end the same way it did between Todoroki vs Sero during the sports festival.]

Feeling a bit of numbness in his limbs, Aiden watched as Deku tied up the fallen Stain and dragged him to the alley-way exit.

With a bit of help from Shoto, the group quickly left and were confronted by a couple of pro heroes and Deku's mentor.

"IS THAT THE HEROKILLER!!" The pros exclaimed.

Looking at the members, Shoto realized that his dad wasn't among them.

"Since da- Endeavor isn't here does it mean that he's still fighting?"

"Oh right! The Nomus are still here!" Deku remembered.

'Ah fuck, forget the Nomus, I need to lie down and wait for the feeling to return to my limbs.'

"Oi kid, why are you walking funny?" Gran Torino asked after seeing Aiden's weird posture.

"I got a stone in my shoe." He replied.

"Cross-san." Iida called and bowed. "I'm sorry for forcing you to involve yourself in such matters. I-I became so blind... I couldn't see anything..."

After hearing the conversation and watching the fight between Aiden and the HeroKiller, Iida came to the conclusion that Aiden only said those things to get the HeroKiller's attention focused on himself. In his eyes the entire conversation was subterfuge used to save him and the injured hero.

Hearing his words, Aiden couldn't help but sigh. "*Sigh* I'm not gonna chastise you for what you did. Someone hurt your family and you did what you thought was best. In that sense I can sort of respect you. But if you do something like this again, at least make sure your strong enough to deal with the situation and not wait to be saved by someone else."

"Huh? You mean-

"Hatred is a strong thing, it works as a good motivator and can push you well beyond your limits. But don't be blinded by it, harness that rage and focus it towards completing your goal."

Iida stood in silence as slowly digested Aiden's words. He had never thought of it that way before and had let his hatred consume him. As if enlightened, he stood with new found resolve and reverence towards his class rep.

"Erm, I'm not sure those are the words a aspiring hero needs to hear." Gran Torino cut in.

"No, but its the words that will help him become the person he wishes to be."

As the two were talking they suddenly heard someone yell. "DUCK!!"

Before anyone could react, a winged Nomu soared down from the sky and used it talons to lock Aiden's numbed body in its grip before taking off again.

"AIDEN!!"

'*Sigh* Today really isn't my day.'

Just as the heroes were about to panic, Stain burst from his bindings using a piece of his shattered sword and licked the blood of the Nomu that had dripped onto one of the pro heroes faces when it swooped down and snatched Aiden.

"To the one who see's the world for what it truly is... You shall not die here today." Paralyzing the winged Nomu, Stain leapt into the air and stabbed it in its exposed brain before retrieving Aiden's body.

Despite their earlier fight, Stain felt the same kind of hunger emanating from Aiden as himself and considered him a comrade. Using the Nomu's body as a cushion, the two landed with a loud bang as the body skidded forward.

"Um Stain..." Aiden's voice sounded out. "I could have just shifted out of its grasp..."

"...."