BNHA: Singularity

After changing into their Hero costumes, the students of Class 1-A boarded a large shuttle that would ferry them to their destination, the Unforeseen Simulation Joint, USJ.

Though he was secretly worried that shit would hit the fan, Izuku forced himself to appear calm, a carefree smile adorning his face despite being seated between Tsuyu and Ochaco.

Fortunately, though Mina didn't hesitate to comment on their seating arrangement, the trip between UA and USJ didn't even last five minutes. Izuku would have preferred it to have taken five hours, but that was the thing about time. The more you wish you had, the sooner it ran out.

Once everyone had disembarked the bus, All Might raised his hands high, seemingly supporting the massive, dome-like structure behind him as he shouted, "Welcome, students of Class 1-A, to USJ!"

Though most of them had no idea of the building's significance, everyone but Izuku, Shinso, and Tokoyami clapped in response to All Might's words. During this, Aizawa emerged from the building's entrance, his expression a languorous deadpan as he said, "Give it a rest and get inside. This isn't a fan meeting or a book signing. You're here to train."

With Aizawa's words as a catalyst, Class 1-A made their way inside USJ's dome, a massive, incredibly spacious structure encompassing more than a hundred acres. The inside, fitting the name 'Unforeseen Situation Joint,' was divided into eight sections, six of which simulated the many disasters Heroes faced in the execution of their duties. This included a ruined urban environment, a sloped terrain simulating a landslide, a mountainous region with fragile cliffs, a mock city that was perpetually set ablaze, a maritime environment with a lake, ship, and even a waterslide, and a zone that was beset by hurricane-force winds and a torrential downpour.

Waiting for the students to arrive, standing 180cm and wearing her bulky, astronaut-themed outfit, was Space Hero Thirteen. Seeing her caused Ochaco to geek out for a moment, but Izuku couldn't really blame her. If he could pick and choose a Quirk, Thirteen's definitely would have made the list. It had many weaknesses, but the ability to create Black Holes at the tips of your fingers was an exceptionally powerful ability.

Using a voice synthesizer that made it difficult to tell if she was a man or a woman, Thirteen took a moment to clear her throat before spreading her arms and declaring, "I've been waiting for you. Welcome, students of Class 1-A, to the Unforeseen Situation Joint!"

As All Might had already welcomed them mere moments prior, the smiles on the faces of Class 1-A became noticeably cramped. Fortunately, things didn't become too tense as All Might took the initiative to initiate another round of applause, laughing spiritedly as he did so.

Unaware that she, or, more accurately, All Might had stolen her thunder, Thirteen went on to explain the purpose of USJ before beginning a short lecture about the nature of Quirks and their capacity to cause harm. Her words were especially meaningful to Shinso, as, toward the end, Thirteen firmly reinforced the notion that Quirks were not evil. So long as they were wielded responsibly, even the most dubious or innately destructive Quirks could be used to help people.

With Thirteen's lecture coming to an end, Izuku tensed in preparation for what was to come. As a result, he was left feeling confused when Aizawa said, "Now that that's out of the way, everyone split up into groups of five. We'll determine which zone you'll go to after that."

While Izuku's mind was drawing a blank, Ochaco, Tsuyu, and, somewhat surprisingly, Shinso made their way over to him. Upon seeing the look on his face, Tsuyu tilted her head to the side, touching her bottom lip as she remarked, "Is everything okay, Izuku-chan? You look like you've just seen a ghost, ribbit."

Blinking back to awareness, Izuku replied, "Sorry, Tsuyu-chan. I was just so inspired by Thirteen's speech that I-"

Before Izuku could finish his sentence, All Might bellowed, "Students, gather together and be on your guard! Aizawa, Thirteen, protect them!"

Accompanying All Might's shout, a hazy black vortex opened near the fountain representing USJ's center. Its appearance momentarily caused Izuku to feel a sense of relief, but that changed drastically when the first figure emerged from the portal, bringing with him a bloodlust that spread outward like a frigid eruption.

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Name: [Tenko Shimura]

Quirk: Decay(Vestige), Preservation(Vestige), Self-Immolation(Vestige)

Current Level: 41 (A/N: Henceforth, only going to include this for the MC.)

Effective Level: 584

[Attributes]

Strength: 76

Agility: 83

Vitality: 4,928

Intelligence: 41

Dexterity: 118

Luck: 603

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With a slim frame, greyish-blue hair, and a body covered in the embalmed hands of his former family and victims, anyone familiar with the Boku no Hero Academia universe would recognize the man that had emerged from the gate as 'Tomura Shigaraki.' What surprised Izuku, other than Tomura's intense bloodlust, was his ridiculous Vitality, Luck, and Effective Level. He had expected Tomura to be fairly weak, but the man was already leagues above 'ordinary' Heroes.

Shifting his gaze to Tomura's Quirks, Izuku's eyes widened as information about them filled his mind. Decay, as the name implied, allowed Tomura to decay whatever he touched with his five fingers. As for Preservation and Self-Immolation, the former allowed his body to adapt and survive almost anything, while the latter was a self-destruct Quirk that would cause him to combust spontaneously. More importantly, all three of his Quirks were 'Vestiges,' fragments of someone else's Quirk that had been transplanted in his body...

Though countless questions filled his mind when seeing Tomura's status, Izuku shifted his gaze to the other two threats within the group emerging from the vortex: a man comprised of the same hazy black substance as the vortex and a black-skinned behemoth with a muscular body, beak-like mouth, large eyes, and exposed brain...

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Name: [Oboro Shirakumo]

Quirk: Cloud, Cellular Deconstruction(Vestige), Spatial Link(Vestige)

Current Level: 27

Effective Level: 82

[Attributes]

Strength: 21

Agility: 39

Vitality: 611

Intelligence: 59

Dexterity: 50

Luck: 44

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Name: [Masahiko Takamura]

Quirk: Shock Absorption, Super Regeneration(Vestige), Energy Conversion(Vestige), Adamantite Bones(Vestige)

Current Level: 105

Effective Level: 3,887

[Attributes]

Strength: 14,311

Agility: 4,920

Vitality: 17,077

Intelligence: 5

Dexterity: 2,558

Luck: 3

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"..."

Seeing the stats of 'Masahiko Takamura,' better known within the Boku no Hero Academia community as the USJ Nomu, Izuku felt a combination of fear, confusion, and relief. The muscle-bound monstrosity could swat him like a fly if ordered to do so, but as long as All Might was around, the only thing Izuku feared was getting dust in his eye from the shockwaves. After all, as terrifying as Level 3,887 was, it was a far cry from All Might's 60k+

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Name: [Toshinori Yagi]

Quirk: Transfer, Stockpiling, Singularity, Gearshift(sealed), Fa Jin(sealed), Danger Sense(sealed), Blackwhip(sealed), Smokescreen(sealed), Float(sealed)

Current Level: 20,108 (1,094,564,432,008 EXP)

Effective Level: 60,344

[Attributes]

Strength: 219,004

Agility: 53,964

Vitality: 298,408

Intelligence: 69

Dexterity: 31,896

Luck: 108

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Though he had the distinct impression that All Might had gotten a little weaker, Izuku wasn't too concerned. Even if All Might's Effective Level decreased by half, he was nearly eight times stronger than the Nomu. If not for the latter's Shock Absorption and Super Regeneration, it wouldn't even be a contest.

Demonstrating this fact, All Might entrusted the students of Class 1-A to Aizawa and Thirteen before leaping into the fray with such speed that he appeared to vanish into thin air. A moment later, tens of villains crumpled like marionettes with their strings cut as All Might shouted, "You villains! Did you honestly believe you could just waltz into UA when I. AM. Here!?"

Without waiting for a response, All Might sent several additional villains flying before charging toward who he believed to be the ringleader of the assault: Tomura and his pet Nomu.

Surprised by All Might's speed, Tomura barely had enough time to shout, "Get him, Nomu!" before the former's fist appeared before him, crushing the hand covering his face and sending the lanky man flying.

Before All Might could follow up and try to capture Tomura, the Nomu opened its beak-like mouth, revealing razor-sharp teeth as it blitzed him with extreme speed. All Might had no trouble reacting to it, but he was a little surprised as not many people, villain or otherwise, could 'force' him to defend.

Sliding back from the force of the Nomu's blow, All Might's smile seemed to sparkle as he said, "You're pretty strong. Fortunately for the people of this glorious nation, nay, the entire world, it'll take a lot more than that to defeat the Symbol of Peace!"

Setting aside the existence of Tomura, at least for the time being, All Might charged to meet the Nomu head-on, their fists creating phantom images as powerful shockwaves rippled through the area, vaporizing the water in the fountain, uprooting nearby trees, and sending the bodies of several unfortunate villains, both conscious and not, flying.

Amid the borderline cataclysmic exchange, All Might's smile gradually faded at the realization his punches had little to no effect on the Nomu. The same applied in reverse, but All Might was used to tanking damage without receiving so much as a scratch.

("I'm glad the Principal heeded young Midoriya's advice.") thought All Might. ("If this 'creature' had been unleashed in my absence, I can't even begin to imagine the devastation it would wreak...")

Punctuating his thoughts, All Might reared back his right fist, gathering a fair amount of his stockpiled energy as he roared, "Detroit...SMAAAASH!"

Following through with his punch, All Might's fist impacted the Nomu's abdomen before he twisted his wrist and 'spiked' the muscular creature into the ground, creating a massive crater and a colossal dust explosion that reached the reinforced glass panels of USJ's dome. When the dust settled several seconds later, the Nomu was sprawled out in the center of the crater, its eyes popped out, and a gaping hole in its abdomen.

Furrowing his brows, All Might was thankful none of the students were close enough to witness the rather gruesome scene. One of the woeful truths of being a Hero was that not every Villain could be defeated and detained without seriously injuring or even killing them. Most Heroes did their best to avoid such an outcome, but there were times when it simply couldn't be helped.

Exhaling a sigh, All Might turned away from the Nomu, intending to take out the remaining Villains and capture Tomura. When he never expected was to find a swirling vortex mere centimeters away from his face, from within which emerged a dry, exceptionally pale hand.

Though he ordinarily wouldn't fear even a small-yield nuclear warhead, All Might's instincts screamed at him to evade the gangly hand at all costs. Fortunately, while he was caught unawares, his reaction speed was such that he could even dodge lasers if he noticed them before they fired. For a brief moment, it even seemed like the world around him had stopped, allowing him to get a good look at the crazed youth staring at him through the portal...

("Such malice...how could such a young man harbor such intense hatred? What kind of life must he have endured...?")

Instead of asking these questions aloud, All Might dodged Tomura's hand and shouted, "You scoundrel! Attempting to sneak an attack in while I was distracted? I think not...!"

Trusting his instincts, All Might didn't attempt to grasp Tomura's hand and yank him from the shadowy vortex. Instead, he thrust forward with his palm, creating a pressurized column of air that impacted Tomura's chest, sending him flying back through the portal and revealing his location on the opposite side of the fountain.

"So, that's where you're hiding...!" shouted All Might, his figure flickering before reappearing at the location revealed by his previous attack. There, a moderately injured Tomura was being cradled by his shadowy, portal-creating companion, 'Kurogiri.'

Stopping All Might in his tracks, Tomura groaned, "This isn't what Master said..." before abruptly rising to a seated position and shouting, "You're not supposed to be this strong!"

Furrowing his brows, All Might asked, "Throwing a tantrum after you've lost? You really are a child..."

Gritting his teeth hard enough that his gums were bleeding, it was clear that Tomura wanted to argue. Instead, the bloodlust exuding from his body became even more potent as he threatened, "Things won't end the same way the next time we meet. I'll destroy you and tear down this false society you've created. Just wait..."

Following Tomura's declaration, Kurogiri activated his 'Warp Gate' with the intention of escaping. The moment he did so, All Might shouted, "As if I'd let you...!" while charging forward. Tomura smiled menacingly in response, but his expression quickly changed when Kurogiri's warp abruptly ceased, courtesy of Aizawa, better known within the Hero and Villain communities as 'Eraserhead' due to his power to negate other Quirks...

"The only place you're going is jail...!" shouted All Might, slamming his fist into Tomura's face with enough force to both knock him out and send him skidding across the landscape with Kurogiri...

...

..

.

(A/N: This is what happens when Smurfs queue up for low elo games...)