Chapter 6: All For One

AN: Yosh! This was fun and exciting to write! Anyways, someone recommended I talk about the Discord I set up here. Anyways, I made a discord so all of us fans, writers, readers, anime lovers, OC makers, and so on can go, hang out, talk about stuff, collaborate, find new ideas, or just hang out! Wait, I said that already. Whatever! Anyways, here is another code! WTDUGBq

As the principle appeared, he looked out and over the entire area. At every villain, and all of his students.

Multiple students infected with poison gas...only one possible treatment. Villain makeup, mess but large numbers. Several of them affected by...something. Unknown Power, boss is not here. One villain left already? Azaken-chan, huh? He tends to stick around for longer...he is probably still watching, but he decided to bow out of the battle himself huh? I suppose he knows then.

"Alright everyone" he said with a child like voice. "Ima need you to point your leader out. Your real leader, not the one you already designated to be the fake leader. Oh, and Deru-chan, could you get over here?"

"R-right..." Deru said, as he started to come over. And yet, between the two of them, another Gate opened.

"You know...if you are going to call me out, you should just wait, instead of speaking to anyone else" a boy said as he stepped out. However, there was something off about him. No, to be exact...he looked exactly like Deru! Only, he had black hair and blue eyes. "Hello...brother".

"K...Karu?"

"You are not the boss, are you though?"

At that point, Kotari moved his scythe and blocked an attack that nearly hit his head.

"You always like using fake outs like that?" Kotari said as he looked towards a high up peak. There was a man there, floating, wearing a purple cape and top hat, and holding a cane.

"Well, that took all of five minutes" Karu mentioned. "But thats fine, all I want to do is play with brother anyways".

"What the...where have you been Karu?"

"Oh, we can save that story for later, maybe. Anyhow..."

Suddenly, Karu appeared right next to Deru in an instant and brought forth a kick right to his head. But Deru blocked it, guarding against the blow and then grabbing the leg and spinning him around, sending him right into the wall. Karu however revealed his tail and had it grab hold of Deru, dragging him with him. Deru managed to break free though, but not before Karu inverted gravity and sent them upwards. From there, it became a flurry of kicks and punches while falling upwards.

"You are too predictable!"

"You still fight like when we were four!"

""This time, I am going to win!""

Kotari-sensei sighed as he saw this.

"Ten years, and apparently they still bicker like brothers. Fine then. I suppose its my turn" Oracle said, as he appeared right in the center of the students, faster then Karu or any of them were able to move, and along with that created a gravity shockwave that knocked nearly ever villain back.

"His quirk is...Gravity Manipulation!" one of the villains said, using his Quirk: Reveal. It allows him to reveal and understand the information of anyone's Quirk and other details just by looking at them.

"Very well then...Gravity Manipulation!"

And with that, Gravity Manipulation was sealed.

"Ha! See, I told...GAH?!" Silencer spoke, but was interrupted when Oracle appeared next to him and punched him in the guy, surprising everyone, including the one in charge.

"Hold on...what the hell was that?"

"You have a large collection of villains here. If it was just me here, it would be rather difficult" he said, when he suddenly charged right at Gasdrogedon and appeared next to him...and then kissed him?!

It was only a few seconds, but then Gasdrogedon fell to the ground, stunned.

"...what...was that..."

"...did sensei just..."

"I believe your exact words, Gasdrogedon, were that you would never ever create a cure, and wanted to watch my students writhe in agony. Indeed, in the two times you got caught before, prior to your escape, you did not once give out a cure to reduce your sentence. And you have, in total, murdered over one thousand people with your deadly gas. Therefore, as the principle, I have decided...to confiscate your Quirk" Kotari said, as he released a pink mist identical in everything but color to Gasdrogedon's Quirk, enveloping all the classmates. And then, all of their conditions started to improve.

"Impossible...did he just..."

"He just...stole that guy's Quirk?"

"Just like...just like all for..."

"Just like my dad, All For One, right?" Kotari asked with a playful smile.

"DAD?!"

"WHAT DID HE JUST SAY?!"

"DID HE JUST SAY ALL FOR ONE IS HIS FATHER?!"

"WHAT THE FUCK?!"

"You heard what I said. That said, I don't go around stealing people's Quirks on whims. Only when I feel it to be absolutely necessary. This man was a serial murderer, but I still might not have taken his Quirk, if it were not for the fact it was vital to ensuring the survival of my students. After all, how could it ever be considered right, to take away a core part of who someone is so casually?"

He then looked up at them all, and gave them a death glare, while someone seemed to start playing music.

"However, I cannot tolerate how you have treated my students..."

"OH shi...OPEN FIRE! EVERYONE, KILL THAT BRAT NOW!"

"...and so, I will have to educate you on the consequences".

And then, Kotari-sensei charged forward. Three villains with super strength Quirks charged to face him, but swing his scythe around, using the blunt side, he sent them all flying. Meanwhile, those with ranged quirks began to open fire on him at all sides, creating a crossfire situation.

"Reflection Screen!" Kotari activated another Quirk he had, Reflection Screen, which reflected multiple of the attacks at him, while he deflected the ones that Reflection Screen could not reflect with his Scythe, intercepting them with super fast movements. "And now...Radial Nova!"

And then, he sent out his own Energy Nova that went after everyone.

"I dont think so...Madness Engulf!"

"Mental Purity!"

Dr. Mad tried to drive him insane, but Kotari-sensei restored his own mental state and then launched a shockwave at the man.

"Gah!" he announced as he was blown back.

"Death Point" the man in purple muttered as he created multiple needles and fired them at Kotari-sensei. However...

"Times up...Gravity Burst!"

Five minutes had already passed, even though it only felt like one or two. Either way, a gravity shockwave intercepted everyone and everything, and sent them all hurdling back. However, in that moment, two people teleported to him at either side in a flanking manuever.

"Long Range Bastilla!" someone in a very far distance shouted, as two people were suddenly hit by giant bastillas made of pure hardlight.

Yes, the culprit was one of the most dangerous teamups in the students, Toshi and Kaori, who together formed the ultimate long range artillery.

And in that moment, he glanced to check out the others.

"And take this!" Karu said, as he grabbed Deru and threw him into the ground...or ceiling in this case. However, Deru grabbed hold of him and inversed some of the force as Karu tried to invert it, resulting in a weird conflict of force that resulted in them both flying right into the ceiling. They both immediatley jumped out though, and only had a few scratches on each of them.

Even with Inversion, their moves have been too much...so, I was correct in my theory...Analytical Eyes: Full Spec!

And in that instant, Kotari-sensei saw what he suspected.

Deru, Karu:

Quirk: Inversion. The ability to invert forces and objects and energies.

Quirk 2: Genesis. The ability to store and then exert power, probably.

I had a feeling, but without knowing for sure if he had a twin, I couldn't be certain...now, now I can. They suffered from the Twinning Phenomenon.

Twinning. A special circumstance that happens in twins. On rare occasions, two twins will be born with different Quirks. Often, they become abnormalities, developing Quirks far different from their parents. However, the more spectacular thing is that while in the womb, while each would be set to get their own, independent Quirk, they also have the likely ability to inherit each other's Quirk as well. In other words, one of them were born with Inversion, the other with Genesis, and through the phenomenon of Twinning, they both retained their own Quirk as well as each other's. Resulting in them both being born with two Quirks.

Of course, it would have been more amazing if the two Quirks were exceptionally unique and strong. Inversion is a good Quirk, but tricky to use on an opponent with a whole scale of weaknesses. Should those weaknesses be realized, most students in Class A would be able to defeat it on its own. Genesis meanwhile, seems to be a Quirk that mainly enhanced physical ability. Its nothing like Deku or All Might, but its pretty good as a baseline. However, it would be hard to operate with only the level of strength that gives.

Right then...now that I confirmed that...

He looked back down and saw the other villains. Grabbing ahold of his Scythe tightly, he then threw it down into a huge pile. It created a shockwave, but then suddenly several people nearby were pulled into a gravity well placed on it, and caused them all to get knocked into each other and knock themselves out as he landed on the ground. He reached out his hand, and the weapon returned to him.

"Damnit...where did Azaken run off to?!"

"No matter! I will deal with this! Mind Jack!"

And then, to stop Kotari-sensei's approach, one of the villains took control of Titan, and moved him in front of Kotari-sensei.

"I...cant...control..."

"Mental Purity!"

And then, Titan was released.

Quirk: Mental Purity. Allows for the cleansing and reseting of one's mind. Unfortunately was also used by a villain for more nefarious means. Repeated uses over short times on one target can cause memory destruction and issue, and for some reason, she was getting kicks out of making children forget their own parents. The only way to restore them was by examining and understand the Quirk and having it, so Kotari-sensei stole it from her so he could restore those children's memories of their parents and their families.

"Typhoon of Flames!"

"Valient Sparks!"

"Negative Pressure!"

"Warp Speed" Kotari said, appearing next to those three and delivering strong and fast backkicks to the backs of their head, knocking them out.

"Death Cutter!"

"Cyclonic Pierce!"

"Overpower!"

"Scythe Hurricane!"

Kotari was then jumped on all three sides, but knocked them all back.

"Tsk. How annoying. Very well, I suppose I will do that then...Critical Overload".

The man in purple shot a needle at one of his subordinates, who then seemed to be overcome with pain and energy. His muscles grew to massive levels, and he seemed to go completely enraged. He immediately charged at the closest major threat, that being Oracle. Charging in suddenly with a fist, Oracle moved his Scythe to block, but he still felt some shockwaves from the blow.

This is...some sort of overcharge ability used on someone with a strength Quirk.

"Warp Speed!"

And in that instant, Oracle appeared behind him and delivered multiple blows. However, he was also moving faster then before, and the two entered a major conflict with each other. Blow to scythe, scythe to blow, both were moving at speeds hard to percieve.

"Natural Disaster!"

And then, a villain attacked from behind him as well.

"Reflector Screen!"

Oracle managed to use another of his Quirks to reflect it. Originally, Reflector Screen was used by a Villain for Hire. Arrested seven times, sent to jail each time, and was broken out each time due to his usefullness. Villains tended to high him so that he could reflect their powers back at the heroes that used them, or just other innocent civilians, to pralyze heroes and make them hesistant or just unable to act. Given the sheer amount of times he was broken out since he was useful like that, when Kotari-sensei caught him, he decided to ensure no one else suffered at the hands of his Quirk, and to make sure heroes would never be afraid to leap in and save the day.

"Even if you are the son of that man, did you really think you could face us...no, in fact, if yo uare the son of that man, why are you even against us? Should you not be with us".

"I said he was my father...I never said we agreed on anything!" Oracle replied, as he started to raise his power even further and swing even faster.

"How is...how is he doing that?"

"Isn't it obvious? There is a saying we have at this school after all...Go Beyond! Plus Ultra!" Kotari said as he swung his Scythe around at an opening he spotted...and sent the man flying off and away from the battle as a shockwave was created that sent every nearby villain sprawling. "Now, who is next?"

Meanwhile, Deru and Karu were still at it, exchanging blows and fighting their hearts out.

"What the hell happened to you! I thought you died, Karu!"

"What happened to me?! What happened to you!? I thought you died, Deru!"

"I got saved from the rubble...by a hero! A hero who told me to live and become a hero! And I wanted to...I want to! To become a hero, so that I would never lose anyone else!"

"Well you are wrong! This world should not be protected! Its because the world is like this that the Great War happened! That we lost our parents...that I thought I lost you! This world of heroes caused it, and rather then trying to change or improve it, they just tried to build it the same way!"

"But causing chaos? That will only cause more issues!"

"Keeping the status quo won't work eitehr!"

The two exchanged punched with each other as they continued talking.

"We need to throw this world off its rails, so a better one can be built! YOu think all these people wanted to become villains?! They just did what they wanted, but society called them outcasts! They saw what their quirks could do, and everyone believed they would become villains! Because of where they grew up, or who their parents were...villains! Thats how a lot of people look at us, the survivors of the incident! Villains waiting to happen!"

"Which is another reason why...I will become a hero!"

"But society will never accept it...and I wont let htem ridicule you!"

"Even if that means becoming a villain yourself?!"

"I dont care, so long as people understand what we face! So long as people understand that this is what its like for us! Even other pro heroes sometimes come and abuse the slums, I have seen it! Those who use fear!"

"Then I will change it from my side!"

"But its already set in stone...being a hero for money!"

"Well, isn't it only fair that people who save others should be paid for the efforts!"

"If their reasons are pure, sure!"

The two tried to kick each other, but they did it in the same way at the same time and intercepted each other.

"But there is too much corruption! There are still those bioweapons walking around out htere, Nomus left over from the war!"

"But causing chaos and endangering people is not the way to go!"

"Well the current system isn't working either!"

Frusterated with each other's stubbornness, they went into full on fight mode.

Deru went for a high kick, but Karu riased his arm to block it. But Deru did not give up, and instead used that as a faint to wrap his tail around that arm, hoist himself over and grab Karu's shoulders, and flipped him back onto the ceiling. Before the impact was made though, Karu inverted gravity again, causing them both to fall.

"Invert Wind Resistance...and Cyclone Fist Technique!"

Karu then delivered a fist right into his face, but Deru managed to roll around and block it with his shoulder as the two impacted the ground. They had landed in a totally different area this time, as they were in some sort of fire zone.

But neither of them let this distract them from the battle, as Deru went in for a gut kick. Karu caught the foot in his hand though and twisted it around to make him fall down, but Deru used the momentum to have his other boot kick his arm. He then increased his power further, and did a direct impact punch to his chest.

"...umm...is it me, or is Deru-kun fighting Dark Deru-kun?" Noboru asked as he, Yaro, and Haruto saw them fight, along with the remaining villains. Yaro had one of his remaining Hydralisks shoot a spike at Dark Deru, but Dark Deru used inversion to deflect it. However...

"Don't interrupt us, Yaro-kun!"

It was Deru who lashed out, as he punched Karu in the face.

"Eh?"

"This is a brother's quarrel between me and Karu!"

"You have a brother?!"

"We both thought each other died ten years ago! Its complicated!" Karu replied, for some reason.

"We are working out an ideological issue, so please stay out of it!" Deru added as Karu kicked him in the stomach, while Deru wrapped his tail around the leg and sent him into a spinning takedown.

Meanwhile, the other three just looked at this not quite sure of what to do.

"...is this really a brother's quarrel?"

"Well, even after ten years, they clearly get along better then me and my brothers" Yaro mentioned, causing both Haruto and Noboru to give him looks.

"Seriously?"

"But...they are clearly not holding back".

"Well yeah, brothers dont hold back against brothers. But, neither of them are going for kill shots. Look, Karu has three knives on his belt he has not drawn, and Deru is not going for the throat whenever there is an opening. Basically, they are going all out, but they dont plan on stopping this debate until its over. Hence, they clearly get along quite well. I mean, they have not talked in ten years, clearly took opposite paths, but...you can see it on their faces".

The two looked over, and along with Yaro's explanation, they understood. After all, Deru and Karu...they were smiling at each other. Pure, genuine happiness. And everyone was pretty sure they had never seen Deru this happy before either.

"That said, if you dont want us to get involved you two, this heat needs to go!" Yaro said with his own crafty smile.

"Fine!" the two of them said, and inverted hot into cold. However, with all the flame, it couldn't change immediately either, so rather it was just a shift change from hot...to somewhere inbetween hot and cold.

Which also meant that Noboru and Yaro were no longer weakened by all the heat, and began to display their Quirks to their full potential.

"Swarm Rush!" Yaro shouted as he brought forth large numbers of Zerg.

"Treant!" Noboru announced as his limbs could increase even more in size without the risk of getting burned since the flames were made to cool, instead of heat up, allowing him to clobber multiple villains at once.

And thus, managed to start taking out the surrounding villains with greater power.

Meanwhile...

Deru managed to flip Karu over, and knock him into a wall. Karu however brought out two pulse guns and fired them at Deru. Deru used his power to deflect their forces, and charged in right at Karu to deliver a good punch. Karu however ducked down and swept the legs, but Deru jumped up and landed behind him, grabbing him from behind and then doing an overhead flip to put Karu in front of him.

""And one more thing, why are you as small as me!"" the both of them asked at once as Karu leapt up and dodged Deru's blow, taking the battle into an area outside the zone away from the center. And then, the two of them charged forward...and landed a clean punch on each other's face. This caused the two of them to finally fall to the ground on their backs, and stop moving.

"...well damn...I don't think I can move".

"...same...for me...I totally wore myself out".

"Well?"

"I accidentally used Inversion on myself without realizing for two years, at least my physical growth..."

"...so that was what happened. I thought I just had a growth deficit".

"Don't tell me...we are still?"

"...yeah. They did say there was a potential of some things being shared aside from Quirks due to Twinning".

"...I blame...you..."

"...you jerk..."

"...you ass..."

At that point, the two of them began laughing. It seemed they really did get along.

"So, what is the plan?"

"Oh yeah, its a tie isn't it?"

"You really mean all that?"

"Of course. We were having a heart to heart right?"

"Mom would hate it if she was here and knew our hearts to hearts were the same as when we were four. Full of fists and kicks and beating on each other".

"Yeah...but, it is still effective".

"So?"

"Hey, why do I have to make the decision? You tied too".

"I am a hero. I have to be more stubborn then a villain".

"Shut up".

"Make me".

"I swear, for everyone else you always act like that kind hearted, innocent, pure child...but with me, you show no mercy".

"YOu stole my favorite blanket!"

"You always stole from my favorite bottle!"

"That was mine! YOu just wanted it for yourself!"

"Not true!"

Hearing how the conversation developed, and remembering what they were originally arguing about, they laughed again.

"Karu, I get you probably had to make a lot of hard choices, but...why not just turn yourself in, tell them everything you know, and join my class in the Hero COurse?"

"Well, that is sure one hell of a one eighty".

"Its not like they treated you well, right? I mean, no one has come to check on you, or tried to help you, or take me out. In fact, I doubt you came here of your own will. So, where is it?"

"...so you knew?"

"Yeah. I actually know its on your left side. So...where is the bomb they put on you to make sure you complied?"

"Its a spider bomb. Attached to me left side. Yeah, I was kind of trying to work out myself how to get it off. I was thinking of Inverting it, but then it would be an implosion attached to me, and that would screw with my organs for sure".

"I see...well, lets rest here for now. Regain our energy until we have to worry about it".

"Thats fine...but, when we go home, dont think I will let you hog the covers all to yourself".

"You were the one who did that when we were kids!"

"No way!"

And so, while resting, the two continued to bicker...

"Kotari-sensei...is amazing" Ryoka managed to say, as she saw him take down all those villains on his own. Indeed, it had been quite awhile since the battle started, and Kotari-sensei was going all out. However, equally so, he was not pacing himself either, not against the sheer numbers they had. Fighting and tracking all these villains solo, having to activate multiple quirks at once. Unlike his father, he had not stolen any Endurance Enhancing Quirks, at least not yet, and he did not have the raw and stored up power that Deku and One For All had that provided that endurance as well.

In other words, even he could not go on forever, and that guy in purple looked like he was planning to use that ability again...on multiple people. Meanwhile, Gate and Dr. Disaster were locked in a major martial arts battle.

"It looks like...you are running out of time" the man in purple said, aware of this fact.

However, Kotari-sensei only smiled at him, and showed a look of fearlessness and pride that the students saw and found inspiring, despite the fact he was shorter then nearly all of them.

"However, I distracted you long enough...to forgot that I was not the only one on a clock".

And then, that was when it happened.

"Sniperfest!"

"Full Barrage!"

"Ooze Jailer!"

"Full Counter!"

"Gattling Thorn!"

Multiple attacks rained down on the remaining villains, taking them out or disabling them, or reflecting the attacks they had pointed at the students!

"Smoke Cloud! I got you covered, Kotari-sensei!" Samuel said, creating a huge cloud of smoke that cut off the boss' vision of his subordinates and made him unable to aim. "I have returned with the rest of the teachers!"

"Samuel-kun did it!"

"Nice job, Samuel-kun!"

"MVP!"

And that was when another teacher, Lady Thorn, stepped forward.

"All teachers! Help the principle clean up this mess!"

"""""""Yes ma'am!"""""""

Understanding what was going on, the man in purple clicked his tongue.

"Gate, its time. The remainder of us are retreating".

"Understood!" Gate replied, teleporting herself away from Dr. Disaster as well as all the rest of the villains still standing. She then took out a Detonator. "Oh, and Kotari-sensei! Before we forget, we left you a surprise for one of your students, and his long lost brother! So you better choose fast!"

And then, she pressed the button as she created the Gate for them all to escape in. However, Kotari knew he could not chase them and instead immediately rushed towards where he sensed Deru and Karu...

Meanwhile, those two had finally gotten up and were taking a walk towards the center when they heard a beep.

"Uh oh! The timer activated!"

"...its a timer...of three seconds?!"

And then two. And then one...

"Both of us!"

"Oh shi...alright!"

And then...the bomb blew up. But in that instant, it also became removable. So, Deru inverted it. But inverting it at that point would just cause the implosion to also suck his Organs into it, which was no good. Which was why Karu inverted it. And then Deru. And they kept inverting it, keeping it in a loop as they took if off. The issue was that, neither of them could let go of the bomb now in this situation, as the center continuously exploded and imploded, it just became a floating sphere that they could not move away from. BOth of them held their hands towards it, constantly inverting it. If they let it implode, it would still pull their bodies in too from being too close, and if they let it explode, the force of the explosion would kill them no matter how they used their Inversion. The bomb actually had a very large boom, so it might take out the whole building.

However, constantly inverting something over and over again, even with the both of them, is hard, as they became visibly sweaty in their already weakened conditions.

"Just...keep it...up!"

"I...know...that!"

"Had to...make sure...you were still being stubborn!"

"You are...the stubborn one!"

"Moron!"

"Idiot!"

""BAKA!""

And meanwhile, Kotari-sensei came into view from a distance, and saw the dire situaton. The bomb had already detonated, but the two were doing everything they could to buy as much time as possible...they knew they could not solve the problem on their own, so they did the next best thing and bought time for them.

"Warp Speed!"

Kotari then picked up the pace and appeared right beside them, as he swung his scythe up.

"Reflection Barrier...Cone!"

And created a reflection barrier around the explosion, with the only escape being up. And so, the two released it as an explosion, which was then forced to only go one way: up. A pillar of fire and destruction shot upwards, while the two boys fell back to the ground exhausted, landing just close enough to link hands.

"Invert...stupid inverted appearance".

"...shut up...I didn't want to look in the mirror and be reminded of my dead brother's face, okay?" Karu said, as his hair turned from black to white, and his eyes from blue to red, restoring their identical twin looks.

"Haaa...well damnit" Kotari-sensei said, looking at this scene. "Now I definently have to create a dorm system. I suppose I will have to make some preparations first..."

And with that, he also fell down on his back and collapsed.

"...Kotari-sensei, do you mind? This is a brother thing".

"I would...but I cant move either. I kinda went overboard dealing with all the villains. Can either of you..."

That was when he heard snoring coming from the two of them.

"...yeah, goodnight..."

And so, the USJ began to spiral down to its conclusion.

AN: They are not the only ones tired! That was fun, but tiring! Anyways, hope you enjoyed! Leave some reviews, and please come and join the Discord!