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Powercreep: a Jumpchain Fic

Summary:

Mia is killing her way through the multiverse with a little help from Granny Jump-Chan.

Chapter Text

"Hello Mia, welcome to the afterlife registration, would you like a regular afterlife or the alternate?" asked an elderly lady in a pleasant tone.

Afterlife? Wait I'm dead!? Shit. Hey wait a minute... "I don't remember dying?"

"Standard memory wipe for traumatizing deaths. Can't tell you so don't bother asking. Now, regular or alternate?" She asked again, with a bit of annoyance to her words.

"Um... I guess alternate? Don't wanna be boring after all."

"alright then, fill out one of these documents and we'll send you on your way. "

Wait a minute... these documents, these are fucking jump docs! Hell yeah, multiverse travel here I come! And I'm gonna start with... oh shit where do I start in an infinite multiverse? Eh, I'll just take the top doc. Oh hey, it's something I know. My Hero! Now, what quirks do I grab?

Several Hours Later...

Alright, all done. Just have to circle the last bit and...

"Finally, you're done. See you in a decade kid, try not to die. Or do, easier for me that way."


I woke up in my new Nomu body, and immediately started testing out my new quirks. Larceny and Erasure both need a test subject to test on, but dupliarms, overhaul, hardening, and dental manipulation all seem to be working as expected.

Hardening is by far the easiest to use, at least in it's full body form. Can't quite get the hang of using it on only a specific part of my body, but I suppose it comes with time. Dupliarms is... easy enough for my first set of extras, but after that it gets a bit hard to control. Overhaul is MUCH harder than the rest if I'm trying to do anything more than destroy or restore. Dental manipulation is... no. Just no, controlling my teeth like that is so fucking hard, and is going to take plenty of practice.

Dental manipulation should definitely be powerful with the extra mouths from dupliarms though. Harden the teeth too and I should have a good weapon to use and overwhelm my enemies once I can get more and more sets of mouths out. I mean hell, just 1 mouth easily overwhelmed Todoroki and Bakugo, and I have (if I did my math right) 19 available once I get the hang of dupliarms! God this is horrifying now that I think about it. Eh whatever, scaring your enemy is a perfectly viable tactic. Just hope I don't scare my allies...

In other news, weird implanted memories are indeed weird. Apparently I was made as a kind of bodyguard for Tomura, like Gigantomachia was for All for One. Why I'm out here in an alley I don't know, but at least I have an in with the League much later on if I can find Tomura.

Now then, what do I do now? Probably find a place to live. Actually, Is should get myself an in with the villains, since my in with Tomura means jack shit if nobody knows who he is and I can't contact him. Tomura will be recruiting for the All Might hit in a few months, and the LoV after that. My goal is the LoV obviously, since everyone recruited for the All Might hit was captured in canon. To do that, I need to make connections with the broker that would put Toga and Dabi in touch with the LoV. I think his name was Gion? Gian? Giran? Eh whatever, I'm sure I'll recognize the name when I hear it. Now then, how to get villain contacts?

The way I see it, I have a few options.

1: I could try getting myself thrown into Tartarus to be recruited by AfO for the Vanguard Action Team.
2: I could join the Shie Hassaikai and work my way through the ranks, turning on them once the League starts dealing with them.

3: I could do something really stupid like staking out Hosu until the League attacks or something like that.

4: Just do some crimes until a villain finds me.

I obviously chose #4, but I need to be smart about this. I can't just go on a killing spree without learning how to use my powers efficiently. So then, how to learn my powers in the 11ish months I have. I'm thinking I'll walk around using larceny on wallets for a while. Should get me enough cash to pay for a hotel to stay in until the league finds me, or I find them.

As for my other quirks, I can practice everything but erasure in my room. I can just make extra mouths, harden my body, stab myself with my teeth, then restore myself once I'm injured. Rinse, repeat, training! Maybe practice skewering my food with the teeth or something for finer control. Ooh, or I could make weirdly shaped pasta with overhaul! That is clearly the best use of that quirk and nobody can tell me otherwise.


Been a few months, made myself a nice stack of cash. Been making leather armor by... Flaying off my own Nomu skin and tanning it. I flay off bits, tan it, then overhaul it with the rest. Afterwards I restore myself with overhaul. Hurts like a bitch but at least I'm building a much needed pain tolerance. It's very important for mid battle healing, since overhaul always hurts the recipient of the heal. Shaping my armor with overhaul has made me quite proficient with it, but I still have a ways to go. As for my other quirks, they're progressing quite rapidly as well, although I feel it starting to slow down. Teeth have gotten about as strong as they can, and I've practically replaced my hands with them. Can make up to 12 well functioning arms with dupliarms, and each one is about twice as efficient as a normal body part.

Speaking of quirk improvements, my hardening can officially stop a bullet. Lifted a gun off Snipe with Larceny. Had to run off quick though as he almost caught me. What's more interesting to me is considering the fact that my teeth can still pierce my skin, they hit harder than .44 magnum. Pretty damn impressive if you ask me. I kind of knew this would happen considering Moonfish could pierce through Todoroki's huge ice barriers, but it's still nice to get confirmation.

Still haven't run into any villains, so I'm thinking of starting my little crime spree, not counting the wallet snatching. Now, I have a few options for my crimes. Rape and murder are the classics of course, but are rather... distasteful. Not to say I won't do them, but it certainly won't put me in a good light. Preferably I'd have supporters like Stain or Gentle Criminal do. Rape and murder won't get me those, so they'll have to wait till later, if they happen at all. Well, murder will almost certainly happen, but rape should probably be avoided. I'd like to hijack Stain's methodology, but that requires murdering pros and... I just don't know that I'm there yet. Maybe sidekicks? Yeah sidekicks should do.

If I'm gonna do this I may just go to Hosu and wait for the Hosu Incident while I'm doing murder things. Could try and seek out the broker guy too, in case my murders don't get the league to pick me up, or draw him to me.

Now, obviously I could choose not to attempt to join the LoV now, but going hero is kind of a non option once they discover what Nomus are, and joining the vanguard action squad of the LoV should net me a spot on the Paranormal Liberation Front as a lieutenant, considering every surviving member of the vanguard action squad who wasn't arrested became a lieutenant. That and easy access to Nine since I want to take him with me and can easily cure his medical issues with overhaul, allowing him to make liberal use of his quirk. Plus his whole philosophy kind of resonates with me and he would make a good co-commander when the time comes for the PLF to be created.

But now I'm getting off topic. Joining the LoV is essential to my plans, but so is joining after the failed hit on All-Might since I know I can't take that heat and am not essential enough for Tomura to save me. I mean, he even said he would've dusted dusted Kurogiri if he didn't need his help to get out of there. Therefore my best bet would actually be lying low until after the USJ attack, in order to avoid being scouted too early. So um, back to being an amateur pickpocket and stabbing myself every night.


Another few months have passed, entrance exam happened, I assume Midoriya is probably in the class considering I made no changes regarding that. All-Might is definitely a teacher, news was very vocal about that fact. Been moving around to avoid too much suspicion with my pickpocketing via Larceny. Spend a week at a hotel, then move on to the next. Gonna keep this going until I get to Hosu, since by then I should hopefully have enough cash to just train and wait out the USJ attack, therefore giving me clearance to start my real training with the heroes as my unwilling training buddies.


Finally made it to Hosu, and I've completely replaced my hands and legs with my teeth when I'm not in public since 'pUbLiC qUiRk UsE iS IlLeGaL!'... God I hate people. Just let me use my damn teeth god damn it! Getting back on track, my other quirks are coming along nicely as well. Erasure doesn't really have anything to train except keeping your eyes open for longer, but I can just make more eyes with dupliarms. Same goes with Larceny. Hardening could already stop a bullet so I don't have much more to compare it to available to me, but my teeth are still breaking it so either they're keeping up or they're naturally really damn strong. UA's first term started a week ago, so hopefully Stain is either here or will be in the coming days. Going to start taking long walks at night in hopes of finding him. If I can't find him before then I'll just stake out Ingenium's agency on the day of the sports festival until he goes on patrol, and then I'll follow him to Stain.


"Heyyy, Stain, my man! How's it going?"

"Who the hell are you?"

"Just someone who really needs your help. In the next few days someone named Shigaraki will contact you, and I need to talk to him. Mind bringing me along with you when that happens? I can offer up help ridding this city of the corrupt heroes you're gonna try and take on if you want!"

"I... Sure? I could always use help cleaning the filth of a city."

"Cool, cool. Oh by the way, you know this guy is still alive right?"

"He's sitting in a pool of his own blood..."

"Yeah but he could easily be saved. He'll be paraplegic sure, but alive. You want him like that for the irony, or are you gonna do him a service and finish him off?"

"The irony?"

"You seriously don't see it? He has engines in his legs. His whole thing is speed. You've paralyzed him from the waste down. Pretty funny, right?"

"Ha, I guess this does seem fitting. Come on then, I've got a place we can stay at until I'm ready for my next target."


Turns out his hideout was an abandoned warehouse on the docks. Didn't do much in the days leading up to the internships, although we did get to spar a few times. His blades couldn't cut my skin so... yeah. I developed a new technique though, I call it 'Dental Armor'. Not the best name, but it describes it well. I use two of my dupli-mouths to create a kind of tooth cocoon around me with holes in it for my Dupliarms to go through. Stops me from using my regular body parts but it provides shit tons of protection so I think it's worth it. Combined with hardening and my teeth could probably take an Anti-Tank round, although that may be an exaggeration. I suppose I'll just have to test it when I get an Anti-Tank rifle.

Anyway, it's time for the league to meet Stain, and more importantly, for me to meet the league.


"Tomura, buddy, pal, how's it going?" I said, trying to sound as carefree as possible.

"Stain, why do you have one of my Nomu with you? And why is it talking?" Tomura spoke with his usual annoyed tone, daring anyone to piss him off.

"I can answer that. You see, I ran into Stain here doing his hero killing thing, and thought it would be likely y'all would contact him at some point, so I decided to join his party until y'all tried to recruit him for yours."

"That doesn't answer why you're talking."

"Well it should be quite obvious. I'm a cut above the rest like Kurogiri! Made by your 'Sensei' to act as your bodyguard. Problem is I woke up in an alley a couple months ago, and had to try and find you myself. Now then, I believe you and Stain have some things to talk about?"

"Yes, we do. I take it you want me to join this league of yours?"

"That's right. We believe you'd be a great addition to the party."

"I may be interested. But before we move any further, what's your goal? What's this league after?"

"Oh it's quite simple really. I want to show the people how fragile their society really is."

Stain went silent for a moment, before asking a question, his voice barely a whisper.
"...and how do you plan to do that?"

Tomura's mouth shaped into his signature grin. "It's quite simple really. I'm going to kill All Might!"

The second the words left his mouth I sprang into action, cocooning the two of us with my teeth. I felt a knife hit my cocoon, but it was nowhere near piercing it.

I used Larceny to take his weapon before he could lick up Kurogiri's blood from the second knife.

"Kurogiri, send him back to Hosu. It's clear this deal has fallen through."

"Right."

"See you later Stain!"

Kurogiri opened a portal below Stain,

"Well then, now that that's over, welcome to the party... I didn't catch your name?"

"Mia. I suppose I'll be your paladin then? Considering my tank and healer abilities."

"A healer? Perfect, we've been needing one of you."

"Indeed, post battle injuries are most unfortunate to deal with. Shall I assume you'd like to know my capabilities?"

"That'd be perfect, yeah. Need to know what my party is capable of."

I spent the next few minutes showing off my quirks and abilities for Tomura, while making small talk. I always liked his character, so protecting him should be nice.


Hosu incident went the same, Dabi and Toga were recruited as per canon, and I got to be part of the breakout for Moonfish. After a bit more time passed I saw the base expand it's ranks, with the entire Vanguard Action Squad present. I've just been spending my time learning from Moonfish, and trading tooth techniques. God that sounds weird to say. Also I've befriended Twice and have decided that I must keep him alive at all costs, and if I see Hawks that motherfucker is dying a very painful death by overhaul. I'm keeping the corpse though, can give his quirk to Nine when he gets the wish version of AfO. Although realistically I'll probably find and kill Hawks during the PLF arc, as finding him before then doesn't seem likely.


Ooh boy, time for the training camp arc! We all have assignments here, and I've been told to stay back and guard Twice while my clone goes and fights the Pros. Hopefully Eraserhead will go down in this fight because he could be a pain in the ass later on.


Clone PoV

Alrighty, Eraserhead first, then Midoriya if I have time. Both need to die, but with Eraserhead dead Midoriya will be a cakewalk without his quirk. Oh and obviously we NEED to grab his body for quirk bullshit later. Huh, speaking of Eraserhead!

"Sup Eraserhead. How's the teaching gig going?"

"Who the hell are you? And what are you doing here!?"

"My name's Mia! Nice to meetcha. I'm Tomura's bodyguard, and a member of the league of villains. I've also erased your quirk, so have fun with that!"

"You wha-?" He didn't get to finish his sentence before teeth surrounded and impaled him. Kinda anticlimactic, but when he's just a human against several hundred blade-teeth there's not much he can do. Now, Midoriya should be on the mountaintop or something, right? At the same time, I killed Eraserhead right in front of the building that had the remedial students in it. None of them have any quirks that would be too useful for Nine, but maybe AfO would want them? Eh, may as well kill them anyway. Worst case scenario he doesn't want them and we caused some chaos.


Yeah, getting their quirks erased was a shock for them. Their deaths came soon after. I've added Ashido, Kaminari Kirishima, tape dude, sugar dude, Monoma, and Vlad King to the corpse pile. One of my super ears from Dupliarms heard a crash on the mountain, so I assume Midoriya found Muscular. I should probably go help Muscular stay not captured.


"Don't worry Kota, I promise everything will be- What?! Why would sensei cancel my quirk at a time like this? And where is he?"

"Oh, sorry bout that Midoriya, but that wasn't your Sensei. He's far too dead for that. Twas me, your friendly neighborhood Mia! Anyway, please die now." There goes another one. Aaaand, may as well take Kota too.

"You good Muscular?"

"Yeah, why wouldn't I be?"

"Because his full power could kill all might in a head to head fight. Luckily, he can't use said full power."

"Are you joking at a time like this?"

"Nope. Now then, don't get yourself caught, we still need to grab Bakugo after all. I doubt anyone here but this kid could take you, but better to be on the safe side. Honestly, we should've been sent in pairs to make sure none of us were taken out, but that's a conversation for later."


Ran into Himiko fighting Asui and Uraraka, Added them to the pile of corpses and promised to revive them for Himiko when we got back. I... honestly don't want to know what she's going to do with the freshly immortal girls she wants to fuck/kill.


Original PoV

Oh hey, my clone is coming back with... oh god that's a lot of corpses. Huh, looks like he got Midoriya. Eraser too! "Nice job #2! Get anyone useful besides the main two?"

"Not really #1, although getting both teachers should cause some chaos. Oh and we promised to revive Asui and Uraraka later on so have fun dealing with that mess."

"God fucking damnit. Alrighty then, time for you to rejoin your original."

"Alright, let's merge with overhaul then."

"Works for me."

Afterwards we used overhaul to overhaul the two of us into one, freeing up Twice's limit and giving me the memories of #2. Compress came back with Bakugo and Todoroki in hand, and Kurogiri got us out of there. Pretty sure I heard Dark Shadow rampaging as we left so odds are a few more students are gonna die even after we leave. Sad for sure, but sacrifices have to be made and all that.