AN: Alright you've all suffered long enough.

BEFORE THE FIGHT:

"So we're going to try to distract All Might?" Izuku asked his friend. "That's the idea. What do you have?" Katsuki asked. "If I may offer a suggestion?" Stian asked. 'Yeah?' Izuku thought. "After I spat out whatever the hell your Quirk uses for blood, it rolled towards you and merged with you. I was wondering if you could do that with larger parts of you." Izuku thought about this, and then his eyes widened. Kacchan, I have an idea." he said. "Let's hear it then!" The explosive blonde replied. "I think that if I'm ripped apart, I should be able to merge myself together again. When I'm healing, I'm just moving mass around and changing it for whatever I need-" Bakugou held up a hand. "Hold on a sec. What the fuck are you talking about?" Izuku sighed. "Well, after the fight with Shinso at the sports festival, Recovery Girl called me in…"

Izuku laid it out for his friend. The fact that he was no longer human genetically (But still mentally), and the fact Stain was 'living' inside him were revealed. Bakugou just got a wicked grin. "Shall we test to see if you can survive that?" He asked. Izuku nodded. "One sec," he concentrated, and then pointed to his leg. "Make an explosion with as little heat as possible at my knee." Izuku instructed. Bakugou followed the instruction. Blood and bone flew everywhere. Now there was a badly bleeding stump of a leg. Bakugou watched as bits of the leg turned into black goo and rolled back to Izuku. When they touched him, his leg regrew! "Holy fucking shit!" Katsuki exclaimed. Izuku smiled. "How is this going to help against All Might?" he asked. Izuku's smile turned into one that wasn't out of place on his dad's face. "In spite of him portraying himself as a villain, I'm 100% positive that if either of us got seriously injured he'd call it off. My plan is to allow my center to do that, basically bisecting me. I'll shift into my dad, and then shift back. He should go into shock. After all, there's a random civilian here. Either he'll attack me or he'll immediately try to help said civilian. That's when you place the handcuffs on him," Izuku explained.

BACK TO THE FIGHT:

All Might collapsed to his knees, cradling the top half of Izuku. "WHAT HAVE I DONE!?" he wailed. He desperately tried to stop the bleeding. "MIDORIYA! MIDORIYA I'M SO SORRY!" he sobbed. "All… Might…" Izuku gasped out. "NO… DON'T TRY TO TALK. DON'T…" All Might whimpered. He had killed his student! Izuku weakly smiled. "Gotcha."

'What?' All Might then felt a new weight on his arm. Bakugou had clasped the cuff on him! "Oy Deku. Stop traumatizing everyone," Katsuki said, smirking. "Fine, Kacchan." The bisected and bleeding boy replied. The blood and bone then morphed into black goo, and rolled towards Izuku. The mass attached itself to him, and reformed his legs. "All right, All Might," Izuku replied, a smirk on his face. "You're caught."

Ochaco had finished vomiting when she heard that. "W-what?" she coughed out. Most of the students were also in shock. "T-that was really dirty," Shoji stammered. "Agreed," Shoto replied, jaw hanging open. "I-it is one way to capture All Might without permanent damage…" Shinso replied, eyes widened.

"MIDORIYA…" All Might gasped. "YOU'RE ALIVE!" he sobbed, hugging his student. "Of course, All Might," he replied, hugging his teacher back. "And don't worry about the punch. I shifted by mass to make sure that I'd come apart like that," Izuku explained. All Might looked like he wanted to ask Izuku something, but he simply nodded. Izuku noticed the steam rising from him. "Come on Kacchan. Let's head out."

It was the next day, and Kirishima, Mina, Sato, and Kaminari were on the verge of a breakdown. "I-I-I was l-oo-king forward to camp!" Mina wailed. "Come on guys. Maybe there's a last minute twist or something." Izuku replied, trying to comfort them. "Midoriya, please don't jinx it. I didn't do anything during the combat. It was all Shinso. At the very least I wasn't knocked out…" Sero replied. "SHUT UP!" Kaminari shouted, fingers heading towards the eyes of the nearest person. Said person was Izuku. This pain caused him to flail around, clutching his face. Before the clusterfuck could escalate, Aizawa slammed the door open.

"You should all be in your seats when the bell rings!" he instructed. The students proceeded to damn near teleport to their seats. "Now then, there are a few of you who, unfortunately, didn't pass your final exams. Thus, when it comes to going to the training camp…" Aizawa gained his terrifying grin that had graced his face after the Quirk Exam. "You're all going to camp!" He declared. "Seriously!?" Mina shouted. "The good news is that none of you failed the written exam. If one of you failed that it would be a different story. However, four of you failed the practical, and Sero, you passed by the lowest possible margin." Said boy threw up his arms in celebration. "Each teacher left one way for you all to pass. And before anyone asks, I lied about us going all out. If we had, there would've been no way any of you would've passed- save for Midoriya and Bakugou. I think that their strategy was incredibly thought-out, and it would've thrown any self-respecting pro out of their act."

'I broke down sobbing at that, and if Izuku hadn't revealed the ploy, I would've taken a vow of vengeance against All Might…' Aizawa thought to himself. Shoto raised his hand. "Yes?" Aizawa asked. "I don't think my father would've broken character like that." he replied. "Like I said;" Aizawa continued, "Any self-respecting pro would've broken character." Everyone caught the meaning. However, Iida seemed upset. "Sensei! This is the second time you've lied to us! How can we afford to keep our faith in you if you keep this up!?" he demanded. "I see your point. And I wasn't completely lying. The ones who failed the practical will have extra lessons at the camp. It'll be far tougher than what you'd face at summer school."

After class, everyone was talking about the camp. It would last for a whole week! As they were discussing what to do, Toru interrupted them. "Why don't we all go shopping together!" she exclaimed. "That's a great idea! We've never hung out as a class!" Kaminari exclaimed.

They all arrived at the Kiyashi Ward shopping mall the next day. They all decided to split up to track down what they wanted. "All right! We'll all meet up at around 3!" Kirishima shouted. Everyone agreed. The class soon scattered. Izuku and Uraraka were the only two left. "So it's just us…" Izuku said. "Yep," Uraraka answered. "Well, I'm going to go look for some weights so I can up my training. What about you?" he asked. "Mostly just bug spray." she replied. Izuku nodded. She then walked off, discreetly smashing the statement Yuga had said while they were fighting 13 down.

"And it looks like it's just me." Izuku said. "Oh look! It's a UA student!" A raspy voice declared, before the voice's owner wrapped one of his arms around him. "I want an autograph." 'We're this famous!?' Izuku thought. "Izuku! That's-"

"I can't believe I'm running into you again!" That brought Izuku up short. Now he recognized that voice! Four fingers settled on his neck. "Why don't we spend some time getting… reacquainted," Shigiraki offered (more like demanded). "Act natural, and wipe that look off your face. We should juuust chat." the Manchild instructed. "And if you try to act out, well… when all five fingers touch your neck, it'll disintegrate. It'll be fast, but painful." Izuku decided he needed to think. "If you do that, there will be witnesses. You'll be caught!" He whispered. "Ahh yes… the law. Take a good look around, Midoriya. Many people here could start a massacre this very second. So could you. You'd probably be able to kill everyone here, and any hero that came along. But you don't. You think that your laws protect you. Well, what happens if someone who doesn't follow those laws walks in? I could kill dozens, maybe up to a hundred before a pro stopped me! It's like I'm the only person with a gun in a gun-free zone!" he taunted. "I get it. Let's talk," Izuku snarled.

The two of them sat down on a bench. "To be completely honest, I hate almost everything. But right now, I hate the Hero Killer the most," he snarled. "Tell him the feeling is incredibly mutual." Stain growled. "Trust me, the feeling is mutual" Izuku grumbled. "Oh? And how would you know?" Shigaraki asked. "Stain lives in my head now. Unlike all of the other people I consumed, he kept his mind intact," Izuku explained. "Hey kid. Why don't you add this brat to your kill count?" Stain asked. "And he just wondered why I shouldn't put you on the menu," Izuku snarled. "You'll be dead before I die," Tomura replied. "After all, people need necks." Izuku chuckled. "What's so funny?" Tomura asked. "I'm barely human anymore," Izuku replied. "That doesn't matter. Back to my topic. The Hero Killer upstaged me! The USJ attack? The Nomu I released!? They were forgotten! He wasn't! Even the fake death that the media claimed is still the thing that matters most! He was like me, destroying everything he didn't like!" Stain howled at that. "Don't you fucking dare equate my crusade to your lunacy, scum!"

"Stain disagrees," Izuku replied. "And do you?" the manchild asks. "Yes. Stain was a villain, but I can't blame his actions. I have his memories, so I know the truth about his attacks. He only went after heroes that were nothing more than villains hiding their crimes- and in some cases, he attacked because he thought retirement was good for the hero in question," Izuku ground out. "He may be a maniac, but at least he didn't flee the second things got bad. He never gave up his mission," Izuku finished. "I made you my legacy. Will you take up my cause?" Stain asked. 'No. I'm going to be the greatest hero. I'll expose them, causing them more damage than merely killing them,' Izuku replied. "That is a good answer, kid. It's a very good answer."

Tomura snarled. "And yet, I still have one final question. What is it that Sensei sees in you? Why does he desire that you live? Why does he seem to value your life so highly, even more than mine!? He said that I'd die if I harmed you! I thought it was because of your Quirk, but that can't be it!" Izuku had had enough. "Let go of me," he snarled, a tendril popping out. At this, Tomura's eyes widened. He immediately let go and backed off. Izuku retracted it and ran.

After that, the police arrived. Shigiraki had already left. Izuku was taken to the police station, where he told Naomasa everything he could, including his final question. He left out Stain, though. "Thank you for this, Izuku. It'll really help," the detective said. "I just wish I could've done more to stop him," Izuku replied. "Don't worry. We'll handle things. It was good that you stayed calm. You saved many lives." With that, Izuku was allowed to leave.

All Might arrived soon after. "Toshinori," Naomasa said. "Naomasa," Toshinori replied. "Izuku's fine. He was alright. However, there's something you should know." That made the 8th holder of One For All nervous. "What is it?" he asked. "According to Izuku, Tomura's 'sensei' seems to value Izuku's life. He values it so much that he told Tomura in no uncertain terms that if Izuku died, he'd kill him. Also, Gran Torino stopped by, and told me what he knew. I asked Izuku for his father's name on a hunch, and he told me it's Hisashi Midoriya. I ran a background on him. He doesn't exist." Yagi coughed up blood. "No…" he gasped. "I'm sorry All Might. Torino even got Izuku to tell him his father's hair color," the detective explained. "No no no no!" Yagi shouted. "According to Izuku, his father has been on a business trip for years. Incidentally, it started the day you defeated All For One. This, the sludge villain's capture by him, All For One valuing Izuku over Tomura, and now the physical description matches. It all leads to one thing," he explained. Toshinori shifted into All Might. "NNNNNNOOOOOOOOO!" he wailed. "Izuku Midoriya is All For One's son."

In the League of Villain's base, Tomura was throwing another tantrum about All Might. Kurogiri was busy washing a glass. After hearing Shigaraki storm out, the mist man looked down at the photo they had of Izuku at the Sports Festival. 'Izuku Midoriya… diagnosed as Quirkless, and yet has one of the most horrifying Quirks I have ever seen. After entering UA, he seemed to gain a secondary power, one that boosted him even further. He placed second at their Sports Festival. During the Hosu incident, he and his friends took on the Hero killer, and won. Afterwards, Stain sacrificed his life to save him. And yet, Sensei highly values his life…' He was interrupted when Sensei's voice came up. "Kurogiri. It is time for you to learn something from me." Shocked, he warped to Sensei's position.

The mist man kneeled at All For One's feet. "What is it that you wish to teach me, Sensei?" he asked. All For One smiled. "You have been loyal to me for years, and have kept a cool head. What I'm about to tell you is something only I, and my doctor, know: My name- as in, the name I was born with," Kurogiri was shocked. He knew that Sensei couldn't have been born as 'All For One', but this… this was something he wasn't expecting. "Why?" He asked. All For One sighed. "Young Tomura may need your guidance to fulfil my wishes. I feel that telling you my name will aid in that. However, telling Tomura at this point would cause… issues," Now Kurogiri was just confused. "I shall delay no longer. My name… the name I was born with… is Hisashi Midoriya." Kurogiri paled.

"M-Midoriya? As in… Izuku Midoriya?" he asked. All For One nodded. "Indeed. He is my son." Kurogiri's mind raced. "That's why you value his life," he replied. Sensei nodded. "While I disagree with his career choice, and even more so with who he chose to be his idol, I can't bear the thought of him being harmed by anyone," Sensei's fists clenched. "When I heard from my darling wife who attacked him, I decided to take matters into my hands for… proper punishment." Kurogiri's eyes widened. "That's why you went after the Sludge Villain!" All For One nodded again. "D-does your family know?" he asked. Hisashi shook his head. "They think that I'm on a business trip. I've hated lying to them for so long, but it would crush Izuku to learn that the father he looks up to is All Might's nemesis." Kurogiri's eyes narrowed. "Is that why you hate All Might? Because he's your son's idol?" he asked. "No… my utter loathing for him stems from something deeper. I've had to lie to my family for five years about why I can't be there for them. Why I can't be a father to my son… my empire is replaceable. My family is not. That is why I hate All Might so much. He stole my family from me."

At UA, Aizawa was talking to Vlad. "Vlad, we have to increase our student's Quirks this summer," he said. "What do you mean?" the 1-B homeroom teacher asked. "Why don't you give me a rundown." Aizawa nodded. "Well first, there's…"

Finally, Aizawa got to the last two of his students. "Hitoshi Shinso. He's the General Studies student I transferred to 1-A. His Quirk is Brainwashing. In essence, if he speaks to someone and they reply, he can control them. And finally, there's Izuku Midoriya. His Quirk is Blacklight." Aizawa paused at that. "Like the Prototype virus?" King asked. "Yes. His Quirk, as far as I can tell, has turned him into the Blacklight virus, with everything that it entails. And I do mean everything." King paled. "Even…" he trailed off. Aizawa nodded.

"He does indeed have feeding tendrils on his back that are what they say on the tin. When organic matter comes in contact with it, it is broken down into raw biomass and absorbed into Midoriya. This can include humans. So far, the number of people he has done this to is 13." Vlad gasped at that. "He's killed 13 people!?" Aizawa nodded. "The first one was a pedophile when he was four. The second was a robber that shot him in the head, which he recovered from without a scratch. Numbers three through twelve were ten thugs at USJ. And the thirteenth and most recent one was the Hero Killer." Vlad interrupted his fellow teacher. "Didn't Endeavor take him down?" He asked. "That was a cover story. Stain willingly impaled himself so as to save Izuku after a reckless attack from Endeavor nearly killed him. My class had already deduced the truth, as the heat required to not even leave ashes would've killed everyone present and done tremendous damage to the surrounding area."

As this was going on, Toshonri was flipping through the marriage records, searching for one 'Hisashi Midoriya.' If there was a photo of him, it could be a kink in the logic! Finally, he found it. He looked at the photo, and screamed. His last hope, the one thing that could disprove what his friend had said, only cemented it. There, next to a woman who was labeled 'Inko Midoriya, stood All For One, under the name of 'Hisashi Midoriya.'