In the wake of a villain attack, certain things were inevitable as the rising sun. The first and foremost of these things was the arrival of the police, usually shortly after the heroes had finished handling the situation. In the case of UA's property being invaded by a small army of villains, the police presence far exceeded the normal response numbers, over two-dozen officers and a squad of anti-Quirk personnel all swarming the USJ facility, cuffing and carting off no less than seventy-one villains who had been brought down by the hero students. Several who had faced the wrath of a particular student, a thin boy clad in a white mask marked with a rainbow, effectively begged to be taken away.

The boy had said nothing of what had occurred, only that he had restrained the villains and moved on. None of the police had asked for any information beyond that, and so the boy was satisfied. They didn't even request the name of his 'Quirk', something that made him particularly happy.

Yes, Blackmore was satisfied, sitting on the curb outside the USJ some distance from the rest of the students, his mask at his hip as he drank long, deep gulps from a water bottle given to him by one of the EMTs. Apparently Catch the Rainbow now came with the cost of steadily draining his fluids, leaving him dehydrated after using it for too long. He had, however, learned that this only applied when he was in his liquid form, and even then only if he used it outside of natural rainfall. It was a good thing to know, and so after he had confirmed that his master was well he had retreated from the crowd of police, hero students and EMTs to take a break.

He heard footsteps approach from behind him, however, loud ones, the walk of someone upset by something. They came to a halt directly behind him, casting a shadow over him in the light of the mid-day sun. Heavy breathing, and then a low growl.

"I saw that shit." the voice of Katsuki Bakugo declared, a snarl in his tone displaying his anger. "In the downpour zone. I saw you with those fuckers. I saw that power of yours. You were gonna kill them."

Blackmore said nothing, taking another sip of water.

"That's not what heroes do, Blackmore." Katsuki continued, evidently having bent down to growl directly into Blackmore's ear. "That kind of thing could probably get you in a lot of trouble with the school, you know?"

Blackmore continued to ignore Katsuki, bringing his water bottle up to his lips again. A hand came down and wrenched the bottle from his hand, a series of gulps from behind him telling him where all the water was disappearing to. There was the crackle of the plastic bottle being crushed, and then it bounced off his head and landed at his feet. Blackmore sighed.

"What is that you want from me, Mr. Bakugo?" Blackmore asked, speaking aloud. "Or are you simply looking to antagonize me? In that case, why?"

Katsuki said nothing at first, before his voice started up right next to Blackmore's ear, a dreadful whisper full of malice.

"I don't know who the fuck you are or where the fuck you came from, but don't think that just because you can spook some pathetic extras you're somehow hot shit." Katsuki said. "You're just another stepping stone for me, and I will not hesitate to crush you like the rest of these-"

Blackmore snapped his fingers, and Katsuki choked as one of the water droplets still in his throat froze in place. Blackmore's hand came up and grabbed Katsuki by the collar, holding him in place.

"I apologize for this, but should you move, the water in your throat will not move with you, and will instead punch a hole in your throat." Blackmore warned, his own voice having dropped to a mutter. "So I recommend you sit still and listen to me for a moment."

Katsuki swallowed, and seemed to regret it when the water droplet in his throat collided with the contracting flesh, punching a tiny hole inside his throat.

"I DO know who you are, and where you come from." Blackmore declared. "I know your home address and I know your bedroom, I know which window is yours and I know everything you have ever done to Master Midoriya. And I wish to now warn you that if you so much as lay a finger on him outside of training courses I will not hesitate to immobilize every drop of water in your body so you tear yourself to pieces trying to flee my wrath."

Blackmore's voice was cold, calm, the opposite of Bakugo's fiery growl. He pressed a single finger into the blonde's throat and stroked back and forth, right around where the water droplet was frozen. He looked up and saw an expression of murder on the boy's face.

Blackmore smiled.

"So do be careful in the rain." he said, voice back to its normal tone and volume. "I wouldn't want to see you get wet."

Blackmore rose, turned and walked away, snapping his fingers again to release Katsuki from his hold. The water slid down his throat so suddenly it made Katsuki wretch, and Blackmore ignored his undignified sputtering, walking away with his hands folded behind his back and his mask on his hip. His umbrella was still with Izuku, who was using it to shield himself and his pounding headache from the brightness and heat of the sun.

Izuku was having a hard time ignoring the fact that the woman sitting beside him was actually his home room teacher, Shota Aizawa. The fact that her name was Shotaka did not make this any easier for him to deal with. She herself seemed all too aware that her appearance, arrival and demeanour were all strange, having been given an explanation by Izuku himself, who was not looking forward to giving the same explanation to UA's Headmaster and the rest of his teachers.

"So... y-you aren't mad?" Izuku asked, voice quiet.

"No, not really." Shotaka replied, shaking her head and shrugging. "The me from this world looked pretty messed up, so I figured the situations was bad. Turned out it was. I'm more worried about the rest of your class. I am... different from your last teacher."

She gestured to herself, the more feminine form hard to discern under the baggy black clothes but still obvious, as was the way her hair was kept back in a long black braid. She was just as sickly pale and tired looking as the other Aizawa, just with breasts and no stubble. At least, probably not on her face...

Izuku slapped himself. Damn Funny and his mature, adult mind for being partially fused with his own hormone-addled teen brain! He already had enough to deal with without his mind suddenly remembering that girls were a thing alongside all the inter-dimensional hijinks and villainous invasions interrupting his school field trips. Now was not the time for girls!

"So, how do we explain this?" Shotaka asked, before breaking up her next sentence with a yawn. "I mean, I'm a woman... and your class is used to me being a man. That's going to cause some problems."

"I might have to come out and admit what Dirty Deeds Done Dirt Cheap does after all." Izuku sighed. "I mean... I think everybody just assumed it was some sort of warp Quirk. But now... most warp Quirks can't do stuff like this, pulling people from other dimensions into this one."

"That is true." Shotaka agreed, before looking over at the approaching Blackmore. "Here comes Blackmore. Wait... how do I know that name?"

Shotaka blinked, pressing a hand to her head and shaking her head as if trying to jar something loose. Izuku didn't mind her, waving to Blackmore, who came and dropped down in front of Izuku, sitting across from him. The boy spared exactly one glance at the now female Aizawa, cocking his head to one side and raising an eyebrow before shrugging and looking back to Izuku, who groaned.

"I... had to help Aizawa-Sensei." he explained. "He was hurt really bad, so I pulled him to another dimension with me and swapped with the Aizawa already there. This is Shotaka, the other Aizawa, by the way."

"Greetings, Miss Aizawa." Blackmore bowed his head, and Shotaka ignored him in favour of rubbing her forehead. "It is good to see you made your transition without losing anything important."

Izuku blinked.

"Blackmore... what does that mean?" he asked, looking at Blackmore, who smiled innocently. "Blackmore, are you saying I could accidentally... damage people, by moving them?"

"No." Blackmore shook his head. "That would be silly. I was attempting to make a joke, sir, to lighten the mood. Sorry if it failed to be funny, sir, I will endeavour to be more humorous in the future."

Izuku groaned again, pressing two fingers to each temple and gently massaging them in circular motions with a bit of pressure. His head hurt, probably a result of warping so much today. He had never actually had to blink so many times before. Blackmore took a long look at Izuku and realized it was surely an Izuku of another dimension; this one had a pattern of five freckles in a pentagon shape under each eye, rather than the original Izuku's four-freckle-diamond pattern. He also had much longer hair, tied back into an ad-hoc pony-tail.

"Yeah, I'm Izuku... I'm not sure, we didn't really bother counting." Izuku said, nodding as he confirmed Blackmore's suspicions. "Probably fourteen or so. The others blasted away with full power on our Quirk, and then we swapped out when we blew through too many limbs. I got swapped in at the end, after All Might showed up. It'd be a pain to find the original Izuku, and unnecessary, since we're all basically the exact same guy past some surface level stuff. So I'm gonna stay until I need to swap out."

Blackmore nodded again, before glancing over Izuku's shoulder.

"In warning, sir, it would appear Miss Tsuyu is approaching." he said, voice low. "She looks... well, as blank as ever, sir."

Asui Tsuyu was approaching from behind Izuku, her face just as calm and expression was as ever. Behind her followed several other students; Kyoka Jiro, Momo Yaoyorozu and Hanta Sero, all of whom had managed to avoid any real injury or strain during the USJ battle besides a few minor cuts and bruises on Sero and a small amount of Quirk over-usage for Momo.

Izuku knew that, because he had checked with the EMTs first thing after being checked up himself. The EMTs had been shocked at his 'lack of injury' and allowed him to go, after informing him of all his classmates conditions. Hagakure Tooru had been found unconscious in the downpour zone, badly hurt by some sort of electricity Quirk, but she was the only one who had suffered severe injury. The EMTs had been the first to learn of Shotaka Aizawa, however, and that had kept them quite busy for a while as they tried to figure out how a biological male had become a biological female without any signs of Quirk interference.

D4C, as it turned out, didn't really show up on Quirk tests. The same went for Catch the Rainbow; both were detectable, but Funny had theorized in Izuku's head that since Stands were of the soul, they were still linked to the metaphysical moreso than the physical. This meant that while they had a clear effect on physiology (Blackmore's ability to turn into liquid and the resultant nonsensical mess that was his genetic structure, or Izuku's utterly incomprehensible cell structure that could shift between realities) their greater powers were nearly impossible to explain or detect.

There was no scientific explanation for Blackmore's ability to freeze water in mid air, nor was there a reason for Izuku's ability to appear in other realities by moving between objects. One scientist would later write in his journal: 'Though there is surely much to be discovered in the field of Quirk science, it remains a fact that some Quirks can only really be explained with a single phrase; it just works.'

Izuku turned to face his approaching classmates, bowing his head in greeting before rising to his feet. He realized too late that he was also approximately two inches taller than the Izuku who had originated in this reality, and therefore stood taller than he ever had before. The three froze for a moment, blinking.

"Hey guys." Izuku said, smiling. "Everything okay?"

Sero looked at the two girls, who each shrugged at one another before Momo sighed, stepping forward. Izuku forced his eyes to stay on her face, resisting the inexorable gravitational pull downwards towards that enormous window in her costume. He was far more successful than he had dared hope, able to not only keep his eyes off her cleavage but also fight back his urge to blush in any way.

"Midoriya... we heard from the doctors that something had happened to Aizawa-Sensei." Momo said. "Is... is he okay?"

"Fine." Shotaka said, startling all three students as she stood up, turning and revealing that she was definitely a woman as far as facial features and build went, not to mention voice. "Shotaka Aizawa. Oh... Sero. You're a boy in this dimension, I see."

Sero blinked twice, before turning around and walking away, muttering something Izuku made out to be 'maybe later'. Momo and Kyoka just stared, and Izuku rubbed the back of his head, sheepishly grinning.

"Yeah... about that..." he said. "I... should probably explain."

Kyoka looked back at him, smirking.

"Oh, I can't wait to hear this." she said. "Alright, green-bean. Spill. What did you do to turn Aizawa-Sensei into a girl?"

"Actually, I was always a girl." Shotaka interjected. "At least, in my dimension."

"D-dimensions?" Momo asked, her head swivelling between Shotaka and Izuku at a frankly unhealthy speed. "W-what is the t-talking about, Izuku?"

Izuku willed D4C to appear around him, the ghostly afterimage of the Stand it had once been materializing over his body. Momo nodded once, before shaking her head and looking twice.

"This is D4C, another aspect of my Quirk." Izuku lied. "It gives me the ability to warp, not just between points in space, but also between alternate worlds."

Momo dropped into her ass, while Kyoka just stared, mouth agape. Blackmore poked his head around Izuku's leg and waved, before adding something very unhelpful.

"I was originally from the eighteen-nineties." he said. "Unfortunately, I perished, and D4C brought me here from the afterlife."

Momo emitted a small squeaking sound, and Kyoka fell over too. Izuku swallowed, rubbing one forearm with his hand and sighing.

"This is... gonna be a long story." he said, before dropping on his butt as well.

If you can't beat 'em, he reasoned, join 'em.

Funny disagreed with that sentiment.

Author's Note:

Alternate universe nonsense is going to be fun in this story, I promise.

Not much to say this chapter, except to thank you guys for all the support. I was not expecting this story to get as popular as it has; we're almost at a hundred favourites, for crying out loud! This is awesome! You guys are awesome!

Reviews are always welcome, especially if you're signed in. I do enjoy replying to you guys, answering questions and addressing concerns or just joking around. Conversation is always fun.

Hope you guys enjoyed this helping of nonsense, and I'll see you next time when my second-favourite Jojo's character makes an appearance! Hint; X marks the spot.