Ok let's get this out of the way right now, Izuku is not a murderer at heart. He does not want to kill anyone and if he had it his way he wouldn't kill anyone. The only reason Izuku was somewhat ok about it in the original fic is because something was keeping him from being able to feel any form of guilt about it. Izuku by nature is a hero, and heroes don't go out and kill people just because they can. They only reason this would change is if something happened that lead to a change in Izuku's mindset.

Alright, onto the story then.

Izuku looked on in horror at All Might's skinny form. Since he didn't know that this was All Might's true form, he had thought that this was the work of Zarathos.

I-I need to do something! I need to get him to a hospital! But his wounds are so bad! Can doctors even do anything to help! Izuku was panicking, hard. Wait! There's Recovery Girl! She could fix him! But where-Oh right U.A.! I need to get to U.A!

With a destination in mind, Izuku transformed, focusing his rage at himself, for failing to stop Zarathos sooner. Once he was fully transformed, he had chains fly out of his back, and wrap around All Might.

The chains pulled All Might onto Izuku's back, and once Izuku was sure he was secure, he formed a motorcycle and sped away from the crater.

Later at U.A.

"What the heck is going on!" Present Mike shouted.

The staff at U.A. had been busy preparing for the next entrance exam that would be taking place in the upcoming months when they saw the enormous explosion coming from the other side of the city.

After that, an emergency meeting was called among all the staff.

"It seems like something has happened at Tartarus. The police are keeping the media out so we don't know much right now, but it seems like All Might's involved." Aizawa said.

"Well, then it shouldn't be that much of an issue." Midnight said.

"I'm not so sure. There's no way that explosion was caused by All Might, it looked like it was made of blue flames. And with an explosion that big would do a number on even All Might." Snipe said.

"Yeah but it's All Might. There's no way he lost." Present Mike said.

BOOM

They heard another explosion, but this time it was much, much closer.

The staff looked out the window and their eyes went wide to see that something had broken through the gates, and given the flaming trail of tire tracks leading from gate to school, it was pretty obvious who broke in and where they had gone.

The alarms went off and the staff started to panic.

"Ghost Rider?! How did he get through the gate!?" Midnight asked.

"I think it's pretty obvious how he rode through them," Aizawa said. "Nezu do you know where he is?"

Nezu looked at his security pad. "The sensors say he's heading towards the medical wing."

"Is he injured?" Recovery Girl asked.

"We can worry about that later, Aizawa, you focus on evacuating all the non-hero staff, everyone else tries and detain Midoriya," Nezu said.

They all nodded and ran out to fulfill their orders.

Nezu jumped onto his desk and spoke into the microphone that was linked to the loudspeaker. "This is not a drill! A villain has entered the school, all non-hero staff must evacuate immediately!"

U.A.'s medical wing.

Izuku silently thanked the signs that informed him where the medical wing was, as he rode through the halls of the school, luckily no students were here so the halls were relatively empty.

When Izuku reached the nurse's office he ran in, All Might still on his back, and looked around for Recovery Girl.

"No. No. NO! Where is she!" He yelled.

Unknown to him the heroes, including Recovery Girl had just arrived and were standing right behind him.

Their eyes went impossibly wide in shock when they spotted the skinny form of All Might, which they had just learned about, on his back.

Swiftly regaining her composer, Recovery Girl coughed into her hand. "Were you perhaps looking for me, deary?"

Izuku looked behind him and was flooded by a feeling of relief. "Yes. It's All Might! I know he doesn't look like All Might right now but I swear it's him! He's injured and-"

"I can see that now lay him on one of the beds." Recovery Girl said.

Izuku used his chains and layed All Might on a bed.

"Midnight, Mike, I'm going to need some help." Recovery Girl said.

The two heroes nodded and started helping her treat All Might.

Izuku looked with concern and guilt bubbling inside him.

"Midoriya Izuku you're under arrest." Snipe said as he and Cementoss stood either side of him.

Izuku looked at them for a moment. "Um...no."

They gave him an odd look, before looking at each other and nodding.

They took out a pair of handcuffs and slapped them on Izuku's wrist.

Izuku, who made no move to stop them, simply melted the handcuffs off him.

With that not working, the heroes tried to haul Izuku away, pulling and tugging at the boy. This didn't work as Izuku simply stood there, not even attempting to stop them, and not looking away from All Might.

Never had these heroes had an encounter wherein the villain simply stood there and ignored them. And there wasn't much they could do about it.

Midnight was taking care of All Might and her quirk wouldn't even work on a skeleton.

Mike was also taking care of All Might, and if he fought, he might hurt All Might as well.

Guns have been proven not to work on Ghost Rider so Snipe couldn't do anything.

The rest of the heroes couldn't do anything without there being a chance of harming All Might.

So the heroes just stood there, occasionally attempting to drag Izuku away, but it was still as ineffective as before.

After about half an hour, they got All Might on life support.

"Is he...going to be ok?" Izuku asked, speaking for the first time since he got here.

"He'll live." Recovery Girl said. "He'll be in a coma for a while but he'll recover just fine."

Izuku didn't hear that last part. All he heard was Coma. He had put his hero in a coma. Well, Zarathos put his hero in a coma, but he failed to stop him. And to make it worse, he killed all those people in Tartarus.

Emotions filled Izuku, sadness, guilt...rage.

"RAHHHHHH!" Izuku shouted in fury, his flames bursting out making all the heroes jump back. "ZARATHOS!"

He punched a wall, destroying it.

Izuku then summoned his bike and sped off and before any of the heroes could stop him, he was outside.

Izuku's bike jumped over the U.A. walls and out into the rest of the city.

I need to fix this! I need to get Zarathos out of me! Now! Izuku thought as he sped through the streets.

A few weeks later

All Might opened his eyes groggily. His whole body hurt, and he couldn't move an inch. Partially due to his injuries, and partially due to the fact that he was in a full-body cast.

What happened? This is, U.A.? All Might thought. How did I get here? What happened to Midoriya?

Then he remembered the end of the fight. His defeat.

That power, it can't have been a single quirk. No, there's no mistaking it, Izuku Midoriya has multiple quirks. But the only way a person could have multiple quirks is… All Might cut off that train of thought. No. I can't be. I killed All for one he can't possibly be behind this. But I can't think of any other way. Did he give his quirk to someone else before he died? Or perhaps there's something I'm not understanding.

As All Might was thinking, Recovery Girl walked in and saw that he was no longer asleep.

"Oh good. Your awake." She said while walking up to him.

"What happened?" All Might asked.

"You were brought in by Midoriya Izuku." Recovery Girl said. "You were heavily injured. A lot of burns, bruises, cuts and broken bones. Not to mention your exhaustion. I'm surprised you woke up as quickly as you did."

"How long was I out?" All Might asked.

"Two and a half weeks." Recovery Girl said. "You were in a coma."

"Two and a half weeks." All Might repeated.

"You should rest for now. I'm sure you have a lot of questions, as do we. But for now, you need to recover." Recovery Girl said.

All Might hesitantly nodded, knowing that if he refused he would likely get one of Recovery Girl's signature death glares.

Another week later.

The U.A. staff had gathered for a meeting once again, this time with All Might included.

The heroes couldn't look away from the number one hero, in a wheelchair and covered in a cast. It was bizarre to see someone so strong appear so weak.

Nezu coughed, gathering everyone's attention. "Thank you for gathering everyone. To start, I think we should restate everything we know."

Aizawa nodded, picking up a piece of paper and reading off of it. "About a month ago, All Might engaged Izuku Midoroiya and seemingly knocked him unconscious. What happened next is unknown, but a few minutes later, Midoriya was attacking Tarturaus, which resulted in the confirmed deaths of four-hundred and eighty-nine prisoners, two-hundred and fifty-five prisoners injured, and seventy-eight prisoners who are who either escaped or were so thoroughly incinerated that we can't find a body."

All Might recoiled at this news. Even if they were prisoners, some of the worst people in Japan even, they didn't deserve to be slaughtered like that. No one did. And he was responsible for it, he was the one who knocked out Midoriya, which seemingly caused this whole mess.

"What's strange is that only two guards died and only five were injured. But both the deaths and the injuries were caused by the prisoners rather than Midoriya himself. Even those who got caught in the massive explosion were completely unharmed, many even report getting hit directly be large fireballs but coming out fine." Aizawa continued. "In the end, we had to transfer all the remaining prisoners to other prisons while Tartarus is rebuilt."

"On the same day, Midoriya burst into the school with you, heavily injured, on his back." Recovery Girl said.

"We attempted to arrest him, but he just ignored us until eventually fleeing." Present Mike said.

"It was rather embarrassing," Cementoss said.

"Still, we don't know fully know what happened during this incident. All Might, could you fill in the blanks." Nezu said.

All Might nodded. "I...I stumbled into Midoriya by chance and after getting away to transform I knocked him unconscious as fast as I could like we planned. And then afterward I took him to Tartarus, but as I was taking him there he suddenly burst into flames and fell off my shoulder in the water under the bridge to the Tartarus. I went in after him only to find that he had transformed. But strangely enough, his flames were blue rather than green."

"Blue? Midoriya has never been reported to have blue flames before, are you sure it wasn't just the water in your eyes?" Midnight asked.

"No. He was blue even after we exited the water." All Might said.

"So then that massive blue explosion was Midoriya?" Aizawa asked.

"Yes." All Might confirmed.

Many of the teachers' eyes widened, they had suspected that Midoriya was responsible for both what happened at Tartarus and what happened to All Might. Seeing as everything was pointing to it being him. But when they saw him, it couldn't have been too long after his fight with All Might and he didn't have a scratch on him, nor did he look tired after unleashing such a massive attack. It just seemed...impossible.

"Please continue," Nezu said, wanting more details.

"After Midoriya transformed, he brought us both out of the water, and threw me away from him." All Might continued. "By the time I managed to get back to the bridge, he was already laying siege on the prison. I jumped in as fast as I could and after managing to find him he seemed...different, from the reports. He was very violent, and he seemed to be enjoying the havoc he was reeking. He even spoke differently from before. And with those blue flames, he was almost completely different from the reports."

"Did he attack you?" Aizawa asked.

"I think I attacked him first, but after that, he did fight back, quite viciously too, and he had a dense aura of murderous intent. He definitely was trying to kill me near the end of the fight." All Might said. "But before he could, I think I managed to get through to him and he started resisting, green flames started wrapping around his body like he was fighting himself."

"Midoriya has never purposely harmed anyone but villains before," Aizawa said. "Something is definitely up."

"Maybe it's because All Might is so much stronger than all the other heroes. Can't just stand there when All Might is punching ya." Snipe said.

"Even if that were true, it wouldn't make sense for him to want to kill All Might," Aizawa said. "And from what we know of Midoriya, he is an All Might super fan so if there's any hero he wouldn't want to kill it's him."

"You're correct. This combined with his change in behavior and fire color leads me to two conclusions." Nezu said. "One, Someone is directly controlling Midoriya, or two, he has developed multiple personalities."

"Multiple personalities? Isn't that a bit...far fetched?" Midnight asked.

"Midoriya was thought to be quirkless, and quirkless people aren't necessarily treated all to kindly by other people, he was heavily bullied by other children and mistreated by adults. And according to his sister, he didn't have any friends or family other than her and their mother, and their mother had cancer." Aizawa said. "And in case you forgot, he killed himself. That's all the proof you need to say he's mentally unstable."

"According to his sister, Izuku was a very shy and polite young man who would typically attempt to stay optimistic, despite his condition and mistreatment and that he always wanted to be a hero," Nezu added. "It's possible that a second personality formed out of pent of aggression and frustration and that second personality is taking it out on villains, doing what he dreamed of doing, but in a very twisted sense."

"That's...dark." Present Mike said.

"To think that a child had to endure all that, it would only make sense he would develop some sort of mental illness. Thirteen said, with a sad expression no one could see.

"We can discuss this later once we can consult Naomasa and perhaps some mental health professionals, but for now let's address the elephant in the room," Aizawa said. "All Might. Did you lose to Midoriya, and if so, how?"

All Might looked down. "Yes. His abilities are...insane to say the least. His physical strength and durability matched mine, and his fire is much hotter then Endeavor's, and it gets even worse. At first, I thought my blows were not doing anything to him, but in reality, he was just regenerating after every attack!"

"Regeneration?!" Midnight said. "So on top of all his other abilities, he heals as well?"

"Are you sure your attacks weren't just not effecting him?!" Present Mike said. "I mean I know it sounds crazy, but so is him having a regeneration ability!"

"I'm sure of it...I-" All Might paused.

"You what?" Aizawa asked.

"I...I tried putting all my strength into one attack...in a last-ditch effort to take him down." All Might said. "And I ah...I."

"Spit it out," Aizawa said, showing no mercy.

"I shattered his skull." All Might admitted. "I even saw the bone fragments all over the ground. At first, I thought I had killed him, but he just grew it back!"

The teachers were shocked, they all started speaking at once, asking multiple questions at the same time until the room descended into chaos.

That is until Nezu spoke up. "Quiet down, quiet down."

Despite barely being able to hear him, the teachers almost immediately followed the instruction. They knew what awaited them if disobeyed him...they would have to deal with a metric ton of paperwork.

Nezu cleared his thought and directed his gaze at All Might. "Yagi, you're sure that you saw his head grow back?"

"Yes." All Might confirmed.

"Did you find any sort of weakness while you were fighting him?" Nezu asked.

"No." All Might said. "Even after unleashing that massive attack and growing his head back, he didn't show any sign of fatigue, he didn't even seem like he was in pain. I couldn't find any weakness or limitation, if young Midoriya hadn't managed to get a hold of himself, then I would have died."

That statement weighed heavily on all the heroes, for years they had relied on All Might's unparalleled strength, a strength that no other hero had even come close to matching.

An unasked question lingered throughout the rest of the meeting.

If All Might can't beat Ghost Rider, then who can?

An hour later

The meeting had come to a close and all the teachers had left. All except for two of them. All Might and Nezu.

"It's a good thing that news copters aren't allowed in the air space around Tartarus, otherwise my secret could have been exposed." All Might said. "That's about the only good news that came from this."

"Indeed. But let's not beat around the bush." Nezu said. "We need to find you a successor. As soon as possible."

"Yes. It's unavoidable now. I need someone who can take on Midoriya." All Might said. "And possibly even...him."

"Ah. Would you perhaps be referring to...All for one?" Nezu asked.

"Yes. Him." All Might confirmed. "I think...it's possible that he's alive, or that he transferred his quirk to a successor."

Nezu nodded. "I think you may be right. After all, Midoriya definitely has multiple quirks and it would explain how a seemingly quirkless child developed a quirk, post-death."

"I can't think of any other explanation." All Might said.

There was a short pause before Nezu spoke up.

"I have a candidate." He said. "His name is Mirio Togata. He's going to be a third-year this coming semester. I want you to meet him as soon as possible."

"If you say so." All Might said.

"I do. We need to pass on One for all as soon as possible." Nezu said. "We're lucky that Midoriya is a kind-hearted young man. But all that past abuse and trauma, combined with what he's experiencing now...if we don't capture him soon, he's going to lose himself. And if he does, then it could be hell on earth."

So that's the end of chapter five. There is gonna be a time skip to a few months later in the next chapter, just letting you know.

Oh, and if you're worried about Eri, she'll be coming soon enough, just be a little patient.

Just for the record, Izuku has access to all of Ghost Rider's abilities meaning he's a lot stronger in this fic then he was in the last one.

Well, that's all for now, please leave your thoughts in the reviews and have a nice day!