Strongest Ninja In A Hero Society

For the rest of the bus drive to the USJ, the students engaged in their own separate small talks and as Takezushi had explained that he was training, he wasn't bothered again. However, before the bus arrived at USJ, Takezushi was disturbed out of his training.

Like a madman, he started unconsciously emanating an ominous aura which greatly disturbed his peers, Aizawa, and the bus driver. As they all looked over to his direction with various emotions and intensities to those emotions, everyone couldn't help but grow a little worried, as Takezushi had his eyes closed and a psychotic grin replaced his usual expression.

"Hahaha..." For the first time in ages, Takezushi let out a laugh as his eyes opened and a never-before-seen pattern consumed both his sclera and irises. Gone were his eyes' normal white sclera as a faint purple now held a striking air of dominance, and in the place of his each of his eyes' irises, there was a dot held within the center of a ripple pattern of concentric circles.

"At last… The Rinnegan." Takezushi took a look at his surroundings and couldn't help but grow excited as it finally seemed like something good was going for him. 'Who'd have thought that one of my shadow clones would have a moment of inspiration and complete my mastery of Yin. Then again, I was at the final 5% of reaching full mastery and all my other Base Nature Transformations were mastered.' Takezushi quickly returned to normal as he finally took in the sight of everyone staring at him with an odd look of fear in their eyes, but in his heart, he was still happy to see that a major part of his training was now complete.

[Status

Name: Takezushi Sakuraboshi

Quirk: Otsutsuki Progenitor

Strength: Superb (Rivals even the best strength augmenting Quirks)

Agility: Superb (Rivals even the best speed augmenting Quirks)

Chakra: Extreme (Comparable to Mid Kage Level Ninja from the Ninja World)

Control: Absurd (Comparable to Peak Kage Level Ninja from the Ninja World)

Nature Chakra Control: Saddening (You're still pretty bad, but at least you're not completely worthless in this regard.)

Yin and Yang Shape Transformation: Greater Perfection (Able to learn and partially alter Peak Level Kage Yin and Yang Ninjutsu)

Yin and Yang Nature Transformation: 100% Mastered

Five Basic Elements (Earth, Wind, Fire, Water, and Lightning) Shape Transformation: Greater Perfection (Able to learn and partially alter Peak Level Kage Basic Elemental Ninjutsu)

Five Basic Elements (Earth, Wind, Fire, Water, and Lightning) Nature Transformation: 100% Mastered

Dojutsu Kekkei Genkai:

Byakugan: Fully m.a.t.u.r.ed and recently evolved.

Tenseigan: Newly developed, requires a period of consolidation to be completely mastered.

Sharingan: Fully m.a.t.u.r.ed (Three Tomoe: Unlocked), evolved once (Mangekyo: Unlocked), perfected, and evolved.

Rinnegan: Newly developed, requires a period of consolidation to be completely mastered.

Combined Nature Transformation Kekkei Genkai:

...]

Still, even if his Rinnegan and Tenseigan had formed, there was no time to delight as neither eye possessed good enough tracking abilities to help locate Aiko. The Tenseigan's power of reincarnation and shared power over gravity with the Rinnegan would only lend him absurd, even planet-destroyer level strength. While Rinnegan would only open one new avenue to help in the search for Takezushi's mother with its Animal Path.

Alas, it would take time to master the Rinnegan's Animal Path and correctly summon the appropriate tracking-type beast from the newly unlocked Beast Dimension. So, for now, Takezushi concentrated his efforts in perfecting his Grand Pulse Technique as it would probably take less time to be of use than his Rinnegan's method.

…

By the time the bus arrived at the USJ, everyone had partially regained their previously cheerful atmosphere after Takezushi apologized for unintentionally scaring them. Then, upon entering the titanic dome-shaped building and coming upon the sight of the USJ's various hazardous zones, the students had their zeal completely return to them. Even Takezushi was impressed after overlooking each individual area.

Kaminari could help but joke, "Is this Universal Studios Japan?" He had a point as the various zones could be mistaken by the layman as different areas that housed rides at an amus.e.m.e.nt theme park.

From the stairs a figure adorned in space-wear started speaking as his form was revealed with each ascending step it took, "Heh, here you'll find a Flood Zone, a Landslide Zone, Conflagration Zone, and those are just the biggest around. Practically every accident or disaster you can imagine can be simulated here and I built it myself. The Unforeseen Simulation Joint!"

"Oh my god, it's the Space Hero, Thirteen!" Izuku couldn't help but fanboy as he was given the opportunity to meet another pro hero.

"He's a gentleman hero who thrives in rescue work!" Uraraka was right there with him…

But as the two students dwelled on their mutual love for the legendary Space Hero, Aizawa came close enough to start a private conversation and asked, "Thirteen… Where's All Might? I thought we were all supposed to meet here."

"About that… You know how crazy that senior is. He's been testing his limit after Takezushi healed him since around eight o'clock in the morning and he's been caught up with stopping crime..."

"Ugh… That's our symbol of peace, I guess..." Sarcastically Aizawa droned.

"Let's get started then," He turned to his class and announced.

"Oh! Before we do, I have one or two points… or three… no, four..." Thirteen cut in. He started, "I'm sure many of you already know, but my Quirk is called Black Hole. It can suck in and tear apart just about anything."

"Its a super useful Quirk you use to save people from disasters!" Izuku added.

"Indeed," Thirteen agreed. However, he added, "However, my power is one that can easily kill. I have no doubt there are plenty of you here where the same applies."

"In our superhuman society, the use of Quirks is restricted and heavily regulated. While it may seem like a stable system, we must never forget that all it takes is one wrong move with an uncontrollable Quirk for people to die… During your Quirk Apprehension Test, you all came to learn of your potential and through All Might's exercise yesterday, you experienced the dangers of Quirks firsthand. So, this class will teach you a new perspective. You'll learn how to save lives with your Quirks!"

"When you leave here today, I want you to understand that your powers are not meant to harm others. That all hero work doesn't boil down to beating supervillains. Helping others is also at the core of being a hero. That is all, thank you for listening." Thirteen concluded with a gentleman's bow and in response to his uplifting speech, the students cheered; some, like Iida going overboard…

"Great, now to start off..." Aizawa was about to begin the lesson when from the corner of his eyes, he caught sight of a blackish-purple mass spawning at the center of the USJ. "Stick together and move back!" Aizawa barked at the students before turning to Thirteen, "Thirteen, protect the kids."

From the mass of black and purple where villains were started to pour from, a deep voice said, "Ho? Thirteen and Eraser, huh? Where's All Might? The class schedule we took the other day, clearly stated he was supposed to be here."

One of the more disturbed looking villains of the group, the first to be teleported over and the presumed leader, said "Hehehe, we've come all this way… we've brought all these playmates… Where is the symbol of peace? Where's All Might?" He looked around the gaps the fingers of the dismembered hand that covered his face, but upon failing to see the symbol of peace, the leader psychotically said, "Maybe a couple dead kids will bring him here!"

"Huh?" A single inquisitive voice broke the tension of the whole situation. Takezushi, who had begun to start walking his way over to get a better look at the villains, kept a level 'footing' even as he crossed past the stairs; he looked like he was walking on air. "What kind of idiots attack a school meant to train heroes? Even worse, one where I'm currently attending..."

Takezushi shook his head as he turned around to face his teacher, "Aizawa-sensei, permission to capture these idiots?" He was met with the sight of his teacher gulping as cold sweat ran down his face before he nodded.

"Alright, let's end this quick… I have a lesson to take," Takezushi said before running through ten hand signs, "Scorch Release: Miniature Heavenly Body," and materializing a small sun behind him. Then after holding a single hand sign, Takezushi said, "Yin Release: Shadow Submission Jutsu..."

Suddenly, all the villains that were caught in Takezushi's shadow fell to their knees. The weakest of the bunch immediately blacking out from the pain they received from trying to resist. Thereafter more villains fell by the dozens every moment as the pain intensified the longer they tried to escape his grasp.

"Holy… You may just be a student but you're even more ridiculous than that symbol of peace," Takezushi heard before he was teleported away upon being consumed by Kurogiri, the man responsible for teleporting the villains into USJ.

"Mhmm… Interesting, there actually exists a person immune to my Shadow Manipulation Arts? Makes sense since his figure is that of a gaseous mass, but it's still annoying." Up to this moment, the villain Kurogiri had yet to reveal a humanoid form, thus it had been able to escape being explicitly targeted by Takezushi; a requirement for the Shadow Submission jutsu to work.

However, even if he had been teleported away, the damage he had done to the villains was outrageous considering the amount of time he had been acting. As Takezushi fell from the sky, headed towards the Flood Zone, back at the center of the USJ, dozens of unconscious villains littered the ground.

Sadly, for the villains, this would barely derail the young celestial for an instance, as it took just a small movement through his Kamui Dimension to reappear just before the spot Kurogiri had teleported him out of. "That wasn't very nice of you. I haven't practiced much with that technique to be able to move around and you messed me up..." Takezushi mumbled as his eyes phased out of their Mangekyo Sharingan and into the Base Sharingan.

"Genjutsu: Macabre World," Takezushi casted before leaving the villain to wander about in the nightmarish reality he had thrown him in.

Just when Takezushi was about to restart his Scorch and Shadow combo, the disturbed presumed-leader of the villainous group loudly muttered, "A cheat with multiple Quirks? Oh well… We have our own cheat." He had been scratching his neck to the point of drawing blood even as he spoke.