Sup peeps , I'm a new writer who stated my first fic like 2 months ago ( It's also Mha it's called Heroes Re Rising check it out on my profile thingy . I'll probably update that more frequently ) And I 've recently caught the write-a-million-fics-and-never-finish-them sickness so hears a good old fashioned time travel fic . Also question for y'all ….

( Turns on accent )

If you could change yer fate would ya ? ( I'm proud of my dumb title alright don't judge me )

Also It's probably obvious but manga spoilers for the latest chapter which as of me writing this is 360 . This is also not a crossover I just thought it be cool. ( you'll see what I'm talking about .)

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Izuku pushed himself off the floor before dashing upwards using float not a second to soon as a mass of mutated fingers and various other body parts slammed into his previous position. The destroyed UA Sky Fortress lay crashed behind him .

He wanted to mourn for his friends who had died , be it by Shigaraki or the actual crash. Unfortunately he wasn't really in a position to mourn right now. It was his fault they were dead anyway .

He had let his guard down and Toga had dragged him to Octo island . He'd left everyone alone when they needed him the most and he was paying for it now . When he arrived the fortress most of the heroes had died only Kacchan and Lemillion remained in combat, but eventually they also fell to Shigaraki's growing amalgamation of body parts .

Their final words still echoed in his ears .

" Keep everyone safe for me Midoriya !"

" Kill this freak Deku !"

Thankfully he still wasn't using his quirks so that means Aizawa sensei and Monoma were still alive somewhere . Which means his friends sacrifices wouldn't be for nothing . All hope wasn't lost ,he could still fix his mistakes.

That's right think rationally , without his quirks you can overpower him and he's unable to regenerate we still have the advantage.

' You're right, thanks Third .'

Izuku sped forward , the lightning surrounding him intensified as he pushed as much of One For All into his body as he could without injuring himself . Using Float and Air Force he rushed towards the shambling mass ready to finish off Shigaraki.

He weaved through the towers of flesh , even using them to swing around with Blackwhip . It was exhausting , the villains ever evolving body attacking him from all angles . Only his enhanced reflexes and Danger Sense saved him a gruesome death.

Eventually , despite Shigaraki's best efforts the final user of One for All was in front of him leg readying itself for a mighty kick . He could only erect a wall of demented body parts to shield him .

However the journey from Octo island , as unfortunate as it was , gave Izuku one benefit . Fa-Jin was charged and ready before the fight even started .

Faux 100% St Louis Smasshhh!

The kick tore through the grotesque barrier an hit the villain directly in the chest , shockwaves burst from the point of impact destroying the surrounding area , if Shigaraki's growths didn't weigh him down he would have been ragdolled across the city by the force of the blow .

Thankfully Izuku had anticipated as much and had jumped back dodging the retaliation. Observing his opponent Izuku noted that Shigaraki actually could regenerate without a quirk ,likely another one of his modifications but it was slower than what his quirks would do . His enhanced body had limits , as long as Izuku kept up this pattern he could win and his friends and family could live in peace once more .

The chance of victory was becoming increasingly more probable for the heroes . That is until a stream of orange flame crashed into Izuku's back searing into his skin . He slammed into the ground screaming as the flames burned his back.

" Oh , it seems like I'm late to the party."

Izuku's blood ran cold , he turned towards the voice and his fears were not only confirmed but multiplied .

All for One stood in the sky but not the one Izuku was expecting. His face had been completely restored now matching his appearance in the visions Yoichi showed him and he was cloaked in an eerily familiar flame .

" No matter because now , I am here ."

The mockery of his mentors catchphrase made Izuku want to Float up there and Detroit smash the mastermind in his fancy new face but he knew that would end in his death .

The fact that he was even here right now meant he'd gotten through Endeavour ( the flames confirmed that ) and those sent with him ( a wave of sadness washed through as he remembered Tokoyami and Jirou were there ) and he apparently healed himself to what Izuku can only assume is his prime and Shigaraki is still here .

Yeah Izuku was screwed .

" Is the successor to All Might cowering ? Here I was thinking you'd actually be a threat Izuku Midoriya."

Izuku gave a defeated laugh .

" I'll admit it between the two of you I've got no chance but I'm the one All Might trusted to beat you so I'd be damned if I disappoint him ."

Izuku abandoned all his limits and went above his percentage cap on his quirk, his muscles burned and he could feel them tearing even though he stood still but he stood in the face of certain defeat ready to defend his home as a true hero should .

The battle was truly massive.

Izuku had been holding his own but still losing before Todoroki came in , all the remaining hero forces by his side . Aizawa , still hidden, had sent a signal for all teams to engage on All For One . Every other league member had apparently been defeated and every hero and hero student in Japan had rallied behind Izuku for the final push .

It was an awe inspiring sight meant for the history books but in the end it was for naught .

All For One in his prime was already more powerful than almost all of them but he had used a sensory quirk to find Aizawa and Monoma . They tried to save them but fate was not so kind .

After that all hell broke loose. Shigaraki now had access to all of his quirks and was able to use Decay with his finger mutations. Most of his friends and the heroes died instantly .

Izuku wanted to cry , he wanted to breakdown and mourn for everyone he lost , scream about how unfair it all was . He might as well with the way it was going he'd join them soon enough .

Don't give up Ninth Japan , No the world is still depending on you!

Izuku dodged a barrage of quirks , their dwindling forces shrinking even more with the wave of attacks .

' I'm not sure there's a way out of this First .'

There may be one and it's an idea you thought of , remember one of our theories on Seconds quirk .

The Second's quirk was one Izuku was told about even though he'd only used it in this battle . It was the ability to skip forwards in time essentially giving the user the ability to teleport . When Izuku first heard that he was as amazed as he was terrified, he definitely agreed with Second about only using it in emergencies there was no telling how far he could accidentally skip because of how much One For All enhanced the quirk . It was best used in emergencies for that reason .

He had many theories about how he could use this quirk but which one could help him here ….. unless .

' You don't think that would actually work right .'

It might and it's the only chance we have right now .

" Midoriya !"

Iida had run up beside him .

" We're dropping like flies , I think its best we retreat for now ."

Izuku knew that wasn't an option , they'd lost here it was inevitable as much as a stretch it was First's idea was the only way for them to win .

" Iida I have a plan but …."

" Its reckless and will probably kill you ?"

" Yeah …"

" Not like we have a better option . Lets hear it ."

" Get everyone to distract him , I'll handle the rest ."

" That's a vague and probably stupid plan but you've never steered me astray before , I'll just have to believe in you Midoriya."

" You're a good friend Iida ."

" ….So are you Izuku."

As Iida rallied everyone to distract the two monsters out to destroy them , Izuku focused within specifically on the Seconds quirk and also to confirm with First on the full details of this plan .

It hinged on one theory , Izuku with enough practise could reverse the time skip effect so that he could essentially travel back in time . ( Hold up before you spam the comments with your power balance issues there's an explanation keep reading)Even if he could do this though there was one issue .

' First I can only skip time for up to ten seconds even if I do reverse the effect it will do nothing to help us .'

Heya Midoriya! First and the others are prepping so I'm guiding you through this .

' Nana ? Alright quick Iida and the others can't hold out for long .'

Sure , remember when there were times you felt like you got a sudden boost in power , it happened in your fight with Muscular when you went 1000000% . According to Yoichi that was us converting our souls into energy and giving it to you for a boost . So were thinking if we all do that at once we can go past your ten second limit .

' But this goes way beyond that time with Muscular! They amount of energy we need is astronomical!'

Yea I'll be honest none of us are sure this will work and if it does the energy required will probably drain our souls to the point where we'll probably cease to exist .

' That's a big sacrifice and it also means this is a one and done situation.'

Heh still thinking about someone else even now eh ? Yeah we won't survive this but it's a small sacrifice for saving the world . Besides you're the last user of One For All so this was always a one and done for you .

Izuku couldn't help but chuckle, in the short time he and Nana got to talk she always brought a smile to his face .

' Thank you everyone I'll take this final chance you've given me and I'll make it count .'

We're proud of you kid , now go make history and finally put an end to this bastard !

With those final words Izuku activated the seconds quirk focusing on reversing the effect . It was hard like trying to make a river move backwards with his bare hands ,but he persevered, he had to right his mistakes and save those he had failed .

'Everyone I'll save you !'

XxxxxXxxxxX

Izuku awoke with a start his eyes darting around trying to discern his surroundings. He was in his room at his house , he hadn't been here for awhile since the dorms got up . In fact he swore some of the hero merch in here was supposed to be at the dorms …… oh wait

He'd done it .

" Holy shit , I just time travelled."

Unfortunately before he could bask in the excitement of his achievement he passed out .

XxxxxXxxxxX

Yea so that's that . I really wanted to do a time travel story so here it is . Plus King Crimson Izuku but its not a crossover. If it wasn't clear Izuku can't just time travel whenever he wants the vestiges had to sacrifice themselves for it to work . I probably won't update this that often I'll be working on my main story but I'm definitely going to come back to this .

See ya gents