Nedzu, the principal of the most top-rated hero school of the world, watched with keen interest and worry as Chisaki Kai let out his final words before unconsciousness. This was a…worrying development. The man, no, the monster before him had his hands again, those same hands that had caused so much death, so much harm to so many people, not to forget his own students. While it wasn't planned, it was most certainly a blessing in disguise when the news came that Chisaki lost his hands, and therefore lost access to his Quirk. There were so many questions he had:

How did he have his hands again? Why did he have his hands again? Why was he at U.A? Was he here to steal Eri back? Why did he talk the way he did at the infamous U.A barrier?

"Questions for later," Nedzu thought to himself as he took out his phone while Chisaki was being carried off to an unused section of the school that would be converted into a temporary cell. "Detective, how quickly can you get here?"

"How much longer, Sensei?!" a voice yelled as explosions rocked around them from the outside. The three of them were in a warehouse on the outskirts of Musutafu. Currently the forcefield generator was keeping all the villains at bay in a 1 kilometer radius, but the forcefield won't hold up for long under the assault. In the middle of the room sat a large flat-looking machine with space to fit a group of eight people, but sadly their numbers had dwindled to the point where only the three of them remained.

"Patience, Young Chisaki, the 'Master Cheat Code' needs more time," came the voice of tall, well-built man who was typing away faster than the eye could see. Thankfully he had a quirk or two that allowed him to see faster than Mach 8. Though strenuous to use those three specific quirks at the same time, he needed to make sure the machine worked before He arrived.

"We need more time?" came the soft voice of a blue-haired man. "The main boss is coming soon, and we don't need a TPK before the next checkpoint…" he muttered to himself before going out the door of the complex in a hurry, his arms and legs getting bigger as muscle fibers wrapped around it.

"Tomura, no! We can go together!" yelled Chisaki, reaching out a mechanical-gloved hand to the retreating back of one of his best friends. "The plan's falling apart," the man lamented before making a fist in his left hand. "No matter, the mission must succeed."

"Correct, now the machine is ready. Step onto the platform, quickly now," Sensei commanded. Chisaki wasted no time as he practically sprinted and jumped onto the platform. "Good, make sure to stand still, and do you have the TSA on you?"

The man in question pulled aside his jacket to reveal the device, pulling it out and typing in commands. "Yes, Sensei. I'll be back with help in no time, I promise you."

"I know you will, now get ready in 3, 2, 1—" The button was pressed, and instantaneously at the same time Chisaki body's was engulfed by a black silhouette before both were shrunk down into a small sphere, shrinking and shrinking until it was completely gone.

Silence filled the void, leaving the tall, well-built man shocked until he began to laugh hysterically on account of the machine working. He was snapped out of his success when he heard the sound of the forcefield generator breaking followed by the warehouse smashing inwards a bit. There, in the rubble/hole of his making, stood a tall muscular man with blond hair holding the decapitated head of Shigaraki Tomura. He wore a prominently red and black skintight suit, his expression grave and serious.

"Have fear, for I am here!" came the booming voice of the Number One Supervillain.

Bright lights is what awoke Chisaki Kai as he blinked himself awake out of his memory/dream. He immediately noticed that his mask was gone, along with his support gear. Not too big of a problem (yet), but when he tried to move but found himself unable due to an unreasonable amount of restraints: He had wrist and ankle cuffs, Quirk-suppressant cuffs, and specially made gloves that appeared to stop the use of fingertip-contact quirks. He struggled meagerly, not actually wanting to escape from his prison.

"Comfortable?" came a gruff voice from in front of him. Chisaki blinked a bit more and focused his eyes to see Aizawa Shouta glaring at him across a table.

"Not really, but I'll endure it just to see you," he replied with a sigh of contentness laced in. Aizawa's eye twitched at the statement, but otherwise did nothing to give away how bothered he was of the man's presence. "Even if the rest of my trip is a complete failure, this one moment makes it all worth it…"

"This 'trip' of yours, tell me about it," Aizawa demanded, a stern "no nonsense" look about him.

"Ahh, it's so good to even hear you again, Shouta, you have no idea," Chisaki began, a soft smile gracing his features. "It hasn't been the same without you, you know that?"

"Truth," said another entity as they walked into the room. It was Tsukauchi Naomasa, wearing his signature tan trench coat and matching hat, the latter of which he took off as he closed the door behind him. "Good evening, Aizawa," he warmly greeted his friend. "Chisaki," he coldly spat out, greeting the other man.

The man in cuffs seemed to straighten out a bit, his expression changing ever so slightly to that of shock. "You're alive too? Wow, this might work then…"

"What might work?" the detective asked, his Quirk ready to fact-check anything the man says.

Chisaki tsked a couple of times in a chastising manner, wiggling his left pointer finger back and forth. "I don't talk until at least Nedzu arrives. He needs to hear this too."

"Who says I wasn't already?" came the calm voice of the principal over the PA system.

The handcuffed man chuckled to himself before letting out a bellyful of laughter. "Of course you're already listening. Should have expected that, that's my fault. I meant in person, you stout-like chimera."

The PA system went quiet at the last word, and a couple of moments later they heard movement in the ventilation ducts before Nedzu popped out of one in the room they were in. He landed with no sound, leveling Chisaki a confused glare. "How could you possibly know that—"

"You have a head of a mouse, an elongated muzzle like a bear or dog, and you have a thin tail, like that of a cat. It's also not that hard to figure out when you already told me the answer."

"I never told you anything, at no point have we ever—"

"Truth," Detective Tsukauchi butted in, his expression as confused as the principal's.

"Gentlemen," Chisaki spoke up, getting everyone's attention, "have you ever heard of string theory?"

"String theory?" Aizawa inquired as Detective Tsukauchi and Nedzu took a seat next to him, all three now sitting facing the wanted criminal. The man in cuffs looked relaxed, a bit too relaxed in everyone's opinion.

"String theory, in the most basic of forms, is a concept where there's an alternate reality for every action you have ever done or not done. There's a reality, for example, where I'm sitting on your left, Aizawa, instead of your right," Nedzu explained as simply as he could, a lecturing tone about him.

"An extreme example, Sho, would be Hitler going to art school instead of causing WWII, or JFK not getting assassinated," Chisaki added on, also adopting a lecturing tone. "'The Multiverse is a concept about which we know frighteningly little' is a good quote to keep in mind when discussing such a thing as multiple earths and timelines."

The detective was the first to recover after Nedzu, "Wait. Are you saying you're from another reality?"

Chisaki rapidly blinked at the question before sighing. "Have you not been paying attention? Yes, I'm saying I'm from another reality, a reality where—actually, I don't know much about what my other self did…is the other Chisaki a good guy?" the man asked innocently, an uneasy smile on his face.

"He's telling the truth, or at least believes it," Naomasa admitted before the other two men looked at each other before Aizawa sighed and nodded, deciding to drop the bomb of information.

"Chisaki Kai, I don't believe your story of alternate realities even a little bit, but I can tell you this: You're no hero. You're sick in the head. A monstrous villain through and through who subjected Eri, an innocent child, to a myriad of cruel and unusual experimentation, all for the 'betterment of mankind,'" Shota air-quoted, hatred oozing in his tone of voice.

The hero villain looked as if his entire world was shook upside down, as if all his dreams and aspirations were suddenly stolen from him. "No…no, that's impossible. I'd never do that! I'd never subject Eri through any of my experiment, never!"

"Truth…"

"Why would you say that you'd never subject Eri through an experiment when we have evidence that you did just that?" Aizawa asked, wondering how Chisaki was tricking his friend's quirk.

"…because she's my daughter that I love with all my heart."