True Legacy

by From0to100

200 years has passed since the creation of one for all. In those years the quirk has been passed to many different people. Some were ofa intentionally while others had it thrust onto them as a last resort. But now it's Izuku's turn to hold the sacred touch as the 21st user. Can he live up to their expectations while he masters the mountain of quirks left to him in their legacy.

When All Might offered me his quirk I wasn't expecting it to come with a manual. However I thought I would get better advice then "clench your butt cheeks and scream SMASH! with all your heart". Sure I've spent pretty much my whole life analysing quirks and how they work but that was more like watching somebody swim when I had no legs. Now that I've inherited one for all it was like fully grown legs have been grafted onto me and this exam was the deep end of the pool I've been pushed into.As we all were seated in the giant dark amphitheatre I kept trying to feel for anything in my body that could clue me into my new quirk. "-its good to see the number of student who want to go into heroics has increased since when I gave Toshi it"."I still find it hard to believe that society would go from trying to exterminate us practically worshipping meta abilities and heroes".With a jolt I try to turn to find who ever had whispered in my ear only to find nobody even paying attention to me."Now what is he doing?" A gruff voice asked in a annoyed tone "kid should be paying attention, not checking out his competition".I quickly spun around again but once more found nobody talking "who said that?" I unintentionally asked out loud. For a long second I heard nothing else which made me think I had imagined it all but a young man's voice filled my head again "can he hear us?".The surprise in his voice was palpable but I ignored it "of course I can hear you. Are you trying to use a noise concealing quirk or do you have a telepathy quirk?".Silence filled my head before it was replaced by the voices of 15 people trying to talk all at the same time. Some had disbelief in their voices while others were filled with overenthusiastic excitement.I tried to cover my ears to block out the noise but didn't help at all. As I open my mouth to yell at them to shut up a women's strict and authoritative voice did it before I could. "Shut up the lot of you before the kid's head explodes" somehow I could feel her attention shift from the other voices and focus on me "I'm sorry about that dear, their just excited the singularity happen so early".I dropped my hands from their place over my ears "who are you people?" I whisper since part of me was still aware that I was in a presentation.A new voice spoke, this one was much softer like his body couldn't handle going a octane higher "this may come as surprise but we are the previous wielders of one for all, my name is Yoichi Shigaraki and I am the first wielder".Now it was my turn to fall silent as the implications of what the original user of one for all had said. But not for long as my brain switched into overdrive as I broke down the info.'How are the previous users of one for all able to talk to me. From what All Might told me it should only be able to stockpile raw power but if the other users still exist within the quirk then there has to be something else being collected. Is it their consciousness or is it their souls? How does a quirk stockpile somethimg that can't be proven real by science like a soul? Maybe the soul is just a paranormal version of our consciousness since it is everything that makes up who we are. Is one for all copying our brain activity to manifest a perfect version of ourselves? Does it stockpile anything else?-'"-And you with the messy green hair" I was jolted from my thought by a boy with blue hair who was standing up and was glaring at me through square rimmed glasses "are you trying to distract everyone with all your incoherent muttering. If so then you should leave immediately and let the rest of us that are taking this seriously continue without interference".As he spoke I realised that I had been muttering all my thoughts under my breath. Panic started to weed itself into my core as the thought I had just revealed the secret of one for all to everyone in the room but a young and kind voice spoke up "don't worry Izuku, nobody understood what you said. Even we couldn't pick up everything you said and we are in your head".Hearing this made my heart attack calm down letting me hear Present Mic address the blue haired boy's question. "Thank you examinee number 2,875 for your question. There are indeed 4 robots in the exam but only 3 types will give you points". On the screen behind the hero a blacked out image of a robot appeared next to the 3 other robot silhouettes."However the fourth robot is worth zero points and serves as more as obstacles that you need to avoid at all costs".The hero teacher continued to explain the rules of the exam but my attention was drawn back to the group of people currently in my head. With a effort of will I tried to speak to them using only my active thoughts.'If you guy really are the previous users of one for all could you please help me so I can actually use it to pass this exam?'I patiently waited for a answer as I heard a number of people quietly discussed among themselves. Finally they stopped and the first spoke again "we would like nothing more then to help you properly control one for all. But as it currently stands you would need much more time and practice before you could safely use the five percent your body can currently handle".My heart dropped into my stomach as Yoichi gives me the devastating news, but before I could completely fall into despair the first spoke again "however we can instruct you on how to properly use our quirks so you can pass".'What? I can use your quirks, how? All Might can only use the raw power in one for all' I ask completely shocked.A cold and strict female voice answers me "When Yagi transferred one for all to you it reach a singularity and evolved. This evolution has granted you a larger boost to the stockpiled power meaning you will be 40% stronger then Yagi when he passed it onto you and lets you access all 18 other quirks".My brain stopped computing once I heard the last part of her explanation. "18 other quirks on top of All Might level power?" I physically breathed out in disbelief. Thankfully the presentation was over and everyone was exiting the amphitheatre to get to their respective testing ground so nobody heard me."that is correct Midoriya. You are the twenty-first wielder of one for all and beside you, Yagi and Shigaraki every other user had a quirk of their own" the cold woman said like it was as simple as 1 1. For a second I thought my brain might overheat from the pure shock but I felt the gentle presence of the women who had calmed the other users "I know you feel overwhelmed right now, but you need to remember that we don't expect you to be able to use all of our quirks right away. You've barely had a quirk since this morning so we think it would be best for you only used a couple simple but effective quirks for the test. Then once you get into UA we can teach you how to use the rest along with the stockpile".As she spoke I felt my mind and body calm until I realised I was boarding the bus to get to my exam site. As I took my seat at the very back of the bus I grabbed my note book from out my bag.Turning to a empty page I quickly scribbled a title on the page, confidence filling my veins with every letter I wrote "OFA Quirk Analysis"'So what quirks did you have in mind?'.

XXX

"Ok is that it?" I ask quietly as I finish the last few notes I had on the quirks I would be using for the exam."It's all the information we have on the quirks while their users were alive but there is a pretty high chance that the quirks themselves have been growing stronger even after their users died" the first replied. "Good, I can work with this" I mutter to myself as I step off the bus and look out at the massive metal gate that would lead into the fake city. I could only see the very top of the building over the towering metal barrier that surrounded the testing ground.As I mentally went over my plan once again I absent mindedly looked around at the other participants and noticed the brown haired girl who had stopped me from tripping over. She was standing off to the side and looked to be in in the middle of calming herself down.Feeling bad I moved to try and help her (because she helped me before, not because she was a beautiful girl) but was immediately stopped when a small pang of pain passed through my head.As it did I mentally recalled the information of one of the quirk I was given.Quirk – danger sense (emitter)User – Hikage Shinomori (7th user)Description – warns user of possible dangers in their surroundings by sending a sharp stabbing sensation in their head. This gives the user the chance to avoid, block or deal with the danger before it can cause harm. The pain is equal to the danger of the threat making it a problem if the user is attacked with multiple fast attacks. This pain can be trained into submission and made to feel more like pressure in the back of their mind. The user can also detect people's negative emotions such as malice, fear, anxiety, anger or hatred. Remembering that the pang of danger sense meant a possible threat so I swiftly stepped to the side and dodged the hand that was coming down to land on my shoulder. I followed the hand back up to it's owner and saw it was the blue haired boy from before.He looked a little surprised by my sift movement but quickly got his expression under control "do you plan you distract that girl so you have a better chance at passing?" he asked as he loomed over me disappointment in his eyes.I frantically wave my hands in surrender "Of course not I'm just trying to-"."If so I must say you are not at all suited for the hero profession at all. You would have better luck trying somewhere other then this prodigious school" without even stopping to listen to my response he continued to scold me like I was a delinquent.Before I could even start to form a explanation the large speakers that covered the area suddenly blared before Present Mic screamed "AND GO!".Everyone around me frozen before looking at each other in confusion, myself included before a bunch of the previous users screamed "stop standing around and go already".Without further delay I took off running into the fake city using all my 10 months of hellish training to leave them in my dust. As I flew through the gate and down the fake street I could vaguely hear Present Mic say something about how there are no countdowns in real life but I was too focused to listen properly.With my head start it wasn't long before I came face to face with a 1 pointer robot. Danger sense had warned me of it before it crashed through a nearby wall. In a second it turned its red camera eye to me before a robotic voice echoed out of it's chassis."Target sighted, moving to engage".It came at me with it's metal fist raised ready to clobber me but with danger sense I was ready. As it rushed me I ran forward and just as it reached me I dropped to the ground and slide the rest of the way to the charging robot.With a quick tap of my fingers on it's metal body a thin black line of energy traced it's way from where my skin touched it straight up and down the middle of the bot. As I picked myself off the ground and continued running I barely had time to see the full extent of the damage the 6th's quirk had done. Behind me the robot stood completely still for a few more seconds before it split perfectly in half from top to bottom. As the two halves fell to the asphalt I remembered what the previous user had told me about this quirk.Quirk – Sunder (emitter)User – Noah Vermeil (6th user)Description – with a touch the user can complete slice apart anything that is isn't 200m in length, width or height. The user can control the cut so it is limited to where the user physically touches and how deep the cut is. The base power is all or nothing and any attempts to regulating the power will use large amounts of mental energy to achieve it. If mental energy is drained rapidly then user will lose control and the sunder will be used at it's normal output. If to much mental energy is used then the user will be knocked unconscious.I knew Sunder was a incredibly powerful quirk that would instantly kill or amputate anyone with a touch but to use it at a lower intensity would rapidly drain me of mental energy. The only reason they let me use it here was because my opponents were robots rather then humans.The previous users didn't know if it was possible to lower the cost of using sunder at a lower power by training since the wielder who had it never really tried to use less power.But I would have time to think about that after the exam was done so I focused back onto present and on finding my next target. Which didn't take long as I found a group of four 1 pointers and three 2 pointers patrolling a side street.None of them were facing my end of the street so I was able to sunder two 1 pointers before any of them realised. But as I reached for the third danger sense pinged to my left where a 2 pointer had noticed me and was sending it's tail to hit me.I ducked under the stinger like limb and touched both it and the 1 pointer I had gone after. The tail and robot was severed in half completely but the actions of the 2 pointer had drawn the attention of the other robots. Their red lenses glowed red as they locked onto me and advanced.Luckily the side street we were in was small so they could only come at me one at a time if they wanted to have full movement. This let me use danger sense to dodged their attacks while sundering them one by one until the ground was littered in robot parts and oil.Once I was done there I ran on and found that the other examinees were hard at work destroying robots like it was going out of fashion. I was about to move on and go deeper into the fake city when I noticed a 4 pointer aiming it's shoulder mounted missile launcher at a teen with red spiky hair who was busy beating another robot with it's own tail.Without thinking I ran towards the distracted teen and activated another quirk. As I planted myself in the path of the incoming missiles wisps of green energy rose from my skin and covered me and my clothes in a solid layer of energy. I then crossed my arms in front of my face just in time for the missiles to hit them. The explosion that followed was more kinetic damage then heat but when it met the layer of energy covering my body the force was equally distributed across the whole surface of the green layer In a ripple.Quirk – aura layer (emitter)User – Benio Description – user can cover their body and anything they are wearing or are in physical contact with a layer of energy to protect themselves from harm. The user can subconsciously or directly manipulated the surface and properties of the layer. When the layer is damaged the user must spend their stamina to fix it. When the missiles had hit I had made the layer shock absorbent and malleable enough for the force to be spread across a larger area. The teen I had protected had turned when he heard the missiles hit me and was now staring at me in amazement. Before he could say anything I glanced at him and smiled "what are you waiting for?" I nodded towards the robot that had shot at us "Go and Get him". With those final words I turn and ran in the direction that I had originally been heading in to search for more robots. As I left I swore I could hear him whisper something about 'being manly' but I just ignored it in favour of focusing on my mission.

XXX

In a dark room where the only light source was a large number of TV screens that displayed every exam across the UA campus. The group of judges, teachers and heroes watching the test were all discussing different participants and their performance. Everybody except a skeletal man with blonde hair who was staring at a single monitor that displayed a green haired teen. Toshinori Yagi otherwise known as All Might had not taken his wide eyes off of the monitor since the boy had split a robot in half with a touch.Now most of the teachers had paid this boy some attention since he had saved a fellow participant by covering his body with green energy to block a missile. Some had speculated he had some form of energy manipulation that let him use multiple different abilities while another started to writing down rescue points under his name. But Toshinori was watching him for a different reason. Just this morning the symbol of peace had left the once quirkless but still nervous boy after giving him one for all. But somehow, from the time Yagi had left him to now Midoriya had managed to gain at least two more quirks.'That is clearly not one for all, so how is young Midoriya doing that?' Toshinori asked himself in confusion. 'The only other way he could have gotten multiple quirks is all for one but he is long dead. Is it some kind of long dormant quirk that only awakened when one for all appeared and powered it up?'.No matter how long Toshinori imagined possible explanations he was nowhere near grasping the truth of the situation without actually talking with his successor. So he shoved his enviable questions to the back of his mind and continued to watch his greatest pride plow through robots like a warm knife through butter.However, as Yagi watched he noticed he could see his student's combat prowess improve rapidly in real time. Every robot kill went faster then the last, every dodge become more precise and every block turned counterstrike went smoother.As the exam continued it wasn't just him who had begun to notice this as the largest screen in the room was switched to show Izuku. "This batch has quite the potential" remarked the small chimeric principle known as Nezu "but I believe it would be negligent if I ignored the elephant in the room". This brought a murmur of agreement from a number of pros "when the exam started he was one of the few who immediately ran into the exam site and was the first one to actively go out of his way to help other examinees".On the screen Izuku could be seen expertly weaving through large groups of robots killing them all with a ease that started even Toshinori "besides that and his unique quirk nothing stood out much about him at the start. A mere 12 minutes ago he fought like a inexperienced child using their quirk for the first time in combat, but now...".Currently Izuku was protecting two exhausted teenagers from a small hoard of robots. Somehow he had managed to kill the first couple of robots in a way that formed a small barricade to protect the teenagers and was now meticulously killing each and every robot in his path. "He is fighting and strategizing on a level that would put some C rank heroes to shame. Who would like to share their thoughts on the matter?" Nezu asked the gathered heroes.For a minute nobody spoke as they combed through the information they had on the kid until Cementoss spoke up "on his application letter he sent over 10 months ago he wrote that he was quirkless but when I looked at the quirk registry he put in a request to have a quirk revaluation about a month ago".Nezu nodded "a versatile and powerful quirk manifesting so late in life is incredibly rare but not unheard of. However most cases like this usually end with the late bloomer becoming a villain with a vendetta against society. Does he have any records of such inclinations?"Hound dog growled a response "about a mile long sir. During his years at Aldera middle school a number of teachers and staff had filed numerous incidents where Midoriya has instigated fights with other students and disrupted class. However there are a sickening number of files of Midoriya being sent to the infirmary with injuries where the cause of the wounds weren't specified".The heroes all felt their stomach twist as their instincts honed through years of hero work told them something was wrong."Strange" Nezu said "that doesn't sound like the actions of a quirkless boy at all"."Oh course it doesn't sound right" the scruffy black haired man know as Erasurehead said as he sat up from his spot on the floor in his yellow sleeping bag. "Especially when he nearly killed himself 10 months ago to save a classmate. The same classmate that shoulder bashed him aside when they went through the gate. The same classmate that to all our findings is a well behaved teen with a powerful explosion quirk. The same classmate he tried to save when he was held hostage by a villain". Then Aizawa looked the principle in his beady black eyes "but you already knew that, didn't you? What's the point of making us so vividly aware of this one student?".Nezu just smiled "if I gave you all the answers you would never grow on your own. But there is a reason I put so much attention on Izuku Midoriya".Nezu step closer to his console as he speaks "to my knowledge he is a bright and promising student that has spent his entire life getting beaten down by everyone around him. But despite what he has gone through, despite the cruelty he has faced, he was the first to run head first into danger to help someone I can only suspect has been a tormentor to him for years".The chimeric hero pressed the giant red button on his console which caused every exam site to shake "even after getting the power he's lack all his life Midoriya still tries to helps everyone around him".On the screens the other heroes could see a giant 250 meter tall robot lift itself up along with a enormous army of 1, 2 and 3 pointers at it's feet "so forgive me for saying this but I believe that a student as gifted as this will need more then one teacher".As the 0 pointer loomed over one of the examinees who had gotten stuck under some rubble. For a second it looked like it was going to crush her before the camera watching her was blocked by the giant robot. As the heroes frantically fiddled with the controls to bring her back in sight a strange white light started to pulse distract the giant robot making both Nezu and All Might grin like maniacs "especially if he is going to keep doing stuff like that".

XXX

I felt the approach of the 0 pointer well before I ever saw it but when I did I knew that UA had more money then it needed and whoever built these things need to get checked for the desire for world domination. I turned and started to head in the direction of more smaller robot when I heard it."somebody please help me"It was so faint I barely caught it but when I looked down the street I saw her. Trapped underneath some fallen rubble was the brown haired girl who had saved me from tripping. In that moment everything went silent as I saw the desperation in her eyes as she looked for anyone that would save her. Without hesitation I sprinted to her with all I had ignoring the shouts of encouragement and warning from the vestiges. As skidded to a stop next to her I wasted no time as I sundered the rock on her leg and moved it off her, only for her to let out a gasp of pain and for me to find her foot was twisted at a unnatural angle.Thinking fast I grabbed her and pulled her off the ground "hold on to me" I said as I placed her arm over my shoulder and began to carry her away. "It's you. The green kid" she mumbled through gritted teeth as we tried to out pace the giant robot on our heels.But the key word there was tried. "Yeah, I am. Sorry I never thanked you properly before, I was a bit stressed out" I said as I looked over my shoulder to see the 0 pointer was practically on top of us. I turn back and looked the girl dead in her eyes "your quirk takes away the gravity of anything you touch while keeping it's mass right?". For a second she looked confused before nodding "yeah but I have a limit of 4 tons"."Ok I'm going to throw you as far as I can, when I do use your quirk to make yourself float" I say as I lift her up fully into a princess carry. If we weren't in a life threatening situation I would have gone catatonic from touching a cute girl like this but I pushed on ignoring the feeling of her body against mine.She let's out a little squeal as I fully lift her up before she asks a very vital question that I hadn't quite figured out myself "what about you? I cant leave you behind".I just grinned at her as I used every ounce of strength I had left in me to throw her forward toward the blue haired boy from before. As she left my cants she activated her quirk to let herself sail through the air before being caught in the arms of the boy. I then turned around and activated my Trump card I'd been saving, from my hand a bright white light pulsed as the sound of a bell ringing filled the air. I stood completely still as I watched the hulking robot come closer on it's giant treads, the brightness and pace of the pulsing getting more intense every second until the robot was looming over me and it's chassis was within arms reach.Normally sunder wouldn't be able to work on such a giant machine, at best it would leave a one big cut on it and would use up all my mental energy to do it. But thankfully I had the 14th's quirk to help bypass that.Quirk – charge potential (emitter)Name – bell Cranel (14th user)Description – the user may increase their next action's potency by 10% for every second charged while in motion. If the user is stationary the user can multiplie their next action's potency by double for every 5 seconds charged. But if user charges past their limit they run the risk of passing out from exhaustion and if they are disturbed while charging then the effect is lost and the timer is restarted.It was a game changing, table flipping, final move quirk that Izuku could use to change the course of a battle. But for it to truly show its worth he had to remain still for 5 seconds and if he was interrupted all his charge would be lost.But the robot wasn't trying to stop him, it was just going to run him over like the tiny ant he was to it. Meaning it had unintentionally let him stack up a 4 charge that he quickly channelled into the power of sunder that leaped from his hand and into the robot base he was touching.Instead of the single black line of energy that was normally released by sunder the robot was instantly covered in 6 lines of brilliant white energy. They were evenly spread across the surface of the 0 pointer in a criss cross pattern.The next second the diced remains of the 0 pointer collapsed backwards and landed on top of the army of 1, 2 and 3 pointers crushing the bulk of the forces to death. As I watched the destruction unfold in shocked relief I could hear the cacophony of cheers and celebrations of the previous users in my head, the loudest being the voice of the young hero who's quirk I had just used to win.

But before I could celebrate with them darkness filled my vision and conciseness was ripped away from me as the toll of using charge potential kicked in. The last thing I saw before I hit the ground was the blue haired boy running towards me with the brown haired girl in his arms.