A/N: So… it's been a while.

Yeah can't really give much of an excuse I suppose but I believe an explanation of some order is required. First off, my computer has not been on my side for months. Second, my mental health, not exactly the greatest thing on my side and life isn't the best at giving me good things. Third, I just got into a new course of college, and fuuuuuck me there's a lot to keep up on.

In summary, I'm a mess, I hope you'll forgive me and enjoy the chapter.

Here's your early Christmas present ma homies. Sorry this took so long to come out, but I made sure you had it for Christmas. Also, just remember Zed is a "sort-of" science writer. Don't expect things to be scientifically accurate or necessarily seem super plausible if you have some biological knowledge. Enjoy!

Chapter 4

"Speech" 'Thoughts'

"*Kyosei in control speech" '*Kyosei in control thoughts'

"Mental Communication/Phone/TV/Letter/Flashback/Robot"

"PRESENT MIC SPEECH/SHOUTING IIDA/RAGE FUELLED BAKUGOU" (Normal speech quotations when he isn't using a mic or shouting)

"Symbiote"

. . . . . .

Recap: After encountering and training with the likes of Momo Yaoyorozu, Izuku Midoriya had begun to further his training a small amount by creating very basic fighting styles for himself whilst training with All Might.

During one of his sparring sessions with the number one hero, Izuku sustained a large head injury requiring medical attention so got taken to a friend of All Might, Doctor Curtis Connors, for privacy reasons.

Unfortunately, while in the confines of Doctor Connors' lab, Izuku discovered that his newfound powers weren't all plus sides as a mental manifestation of the Symbiote inside Izuku took a dark turn. After threatening Izuku by trying to take over his body, the Symbiote struck a sense of terror in the teen leading him to seek comfort from Momo.

After talking with Momo and heading back to Doctor Connors' lab, Izuku was gifted a useful streamlined and flexible training suit. Meanwhile, Momo was made an offer that shocked even her...

. . . . . .

"What if you were to have the same power, to realise your potential?"

"What?" The question from the OSCORP scientist left Momo shocked and at a complete lack of words as he brought up the screen of Izuku's blood again.

"I believe that what happened to Izuku can be replicated, and if it can be replicated then it could be possible to heal wounds thought to be impossible," Doctor Connors added while his left arm instinctively reached for the right side of his body.

While this did clear up a little bit of Momo's confusion, it still remained in her mind.

"But why me? You work at OSCORP, don't you? Why can't you get someone from there to be your guinea pig?" Momo retorted with a small hint of venom in her tone.

"I know it sounds bad but trust me when I say this: if any company or government finds out he was artificially given such power then he would be taken apart, piece by piece. If you let me do this without OSCORP's intervention then this can be used for good. And I can guarantee Izuku's safety."

Momo didn't think of that…

Izuku wasn't born with his quirk, he acquired it by unnatural means. And with his strength, speed and senses, he'd be the equivalent of a super soldier. They wouldn't care about the repercussions for Izuku, they would just do what they had to to get what they wanted...

Now that she heard it like that… the request didn't sound as insane.

"I'm going to do some animal testing when you two leave so that I can confirm that this is safe to do, but I wouldn't have suggested this if I wasn't at least 95% sure to begin with."

"Well… we should at least tell Midoriya-"

"We can't even risk Izuku knowing. I'm sorry, Momo, but if you agree to this, it never leaves us," Doctor Connors insisted with a completely serious tone.

"Can... can I at least think this over?" Momo asked as the options kept swirling around in her head.

"Of course, I'm going to need at least a week to make a serum suitable for human trials so please take your time. Just call this number when you've reached a decision." Handing Momo a piece of paper with a phone number written on it, the OSCORP scientist then quickly hid all the tabs on Izuku's blood as said teen was on his way back in.

"That suit is amazing, Doctor Connors! It will double my training productivity!" Izuku gushed as he was putting on his casual clothing on top of his new suit.

"I'm glad to hear that. Please let me know if there's anything else you need to help with your powers."

Izuku immediately knew that some web shooters that would filter his webbing to make it stronger would be ideal but thought that asking right away might seem a bit rude.

"No, nothing worth mentioning at the moment, but thank you for the offer." Izuku smiled before he moved over to underneath the vent, Momo quickly moving onto his back so she could get out and clear her head.

"Thank you again, Doctor Connors."

Izuku waved before he leapt up the vent with Momo letting out a small yelp as he did so.

. . . . . .

After a quick drop off at Momo's place, Izuku was now currently web swinging and rooftop running across Tokyo to head home as darkness was beginning to fall on the city.

Izuku eventually took a quick break and landed on a nearby rooftop breathing at an irregular pace.

"It's weird being tired… but not being even the slightest bit sweaty…" Izuku chuckled to himself as he sat down on the concrete roof.

"You're tired because you never turned off the weights, you idiot," the Symbiote image said, appearing in front of Izuku.

"That's because they don't actually weigh anything, they just simulate the effect of weight through muscle stimulation," Izuku explained as he double tapped the weight control to deactivate it.

"We need to set some ground rules," Izuku insisted with a serious tone in his voice.

"Woah, okay, lighten up a little, will ya?" the Symbiote image said looking a little offended while defensively raising up its hands.

"Given our previous interactions and threats I might add, can you blame me for being a little cautious?" Izuku quickly retorted, making his mirrored image scratch the back of its head with guilt.

"You have a point… but can I at least explain myself before you try anything?" Izuku did hesitate in his response as the Symbiote's actions and words were a lot different compared to when it first showed up.

"Okay... please explain yourself," Izuku said with some reluctance.

"Right, so it took me a few hours to gather all my memories and also go through some of yours… But when we first gained consciousness my instincts just screamed at me to take over your body. And I planned to do it again while we were with that Momo girl but as you were talking to her… I started to look into your memories and saw everything you've gone through. I guess you could say I became more human experiencing what you have."

Izuku was more than a little shocked to hear that from what he assumed originally was a psychotic entity living in his head.

"So… you've learned that what you did was wrong?" Izuku asked to try and gauge if everything he was being told was true or not.

"Yeah, and besides, we would be much better trying to work together rather than fighting for control every second," the Symbiote laughed while now sitting in mid-air.

"So, what exactly do I call you?" Izuku asked as he kept thinking that the name Parasite or Symbiote didn't really seem like a good enough name.

"Don't know. I did like the sound of Symbiotic… that's it! You may now refer to me as Kyosei, master of voices," the newly named Kyosei proclaimed proudly with its arms spread out.

"...Too much? I sensed it was too much," Kyosei followed up as it saw Izuku's expression.

"I like Kyosei though, it's a good fit," Izuku commented as Kyosei began to spin in the air with a big grin on its face.

"You know, being in your head isn't actually that bad. I know that once you begin trusting me, we can start alternating control."

"And why would I allow you control? No offence." Hoping not to offend the other consciousness, Izuku tried to remain cautious about what he said.

"None taken kid, but let's face it. You are waaaay too uptight and logical. I, meanwhile, am laid back and reliant on instinct," Kyosei began. "That whole thing with Bakugou, for example. You're welcome, by the way. You would've gotten a black eye if it weren't for me."

"That's… completely true…" Izuku tried to defend himself but failed as he quickly realised that Kyosei was absolutely correct.

"So maybe if I build up a sense of trust with you, you might consider switching control when needed?" Kyosei asked with a hopeful look on its face while extending out an imaginary hand.

"Okay… but it's going to take some time." Izuku extended his own hand to shake Kyosei's who seemed relatively pleased with the deal.

"Fine by me."

. . . . . .

As the next day rolled around, Izuku decided to keep the training sleeves on so that he could strengthen himself whilst still at school. Thankfully the weights on their own weren't very thick at all so they could be easily hidden. While he made sure the weighted gear was always on him, Izuku also made sure he always had a set of casual clothing and his new suit from Doctor Connors in his bag considering he was always going straight to Momo's after his classes were done.

It became the norm for Izuku to come home late, but Inko didn't question it. Her son was happy for the first time in a long time and she didn't want to take that away from him.

Classes themselves actually became a little more tolerable due to Kyosei and more importantly, Momo.

Kyosei had all of his memories and knowledge, just a different personality, so with it literally floating over his head, he never ran into any errors because Kyosei kept fixing them as Izuku thought of them. However, it didn't help that the conscious symbiote kept making fun of everyone in his class...

Momo on the other hand was the one keeping him up through the day. Due to them having near identical class times they were able to text each other between classes. Most commonly the two would talk to each other over the phone during their lunch breaks.

All those little things topped with him visiting Momo actually left Izuku in a positive state of mind; it was actually the happiest he had been in god knows how long.

Even as a week passed, everything seemed to be going fine... until the end of the last class on Friday.

Izuku was leaving the school, Kyosei floating beside him as the irritating consciousness it was.

"Finally… I don't know how you deal with that place."

"It's not that bad-" Izuku said with a small amused smile before being cut off by Kyosei who was now looking forward with a cautious expression.

"Heads up, Bakugou's followers straight ahead." Taking the warning, Izuku glanced up to see two of the tougher looking people in his class looking right at him.

"Thanks for the heads up," Izuku said mentally, making a left to avoid them.

"Ay, you're getting better with the whole mental talking crap," Kyosei said somewhat impressed by its host while still on the lookout.

Izuku's face then indicated like he was saying something but Kyosei heard nothing.

"Nope, now you suck again," Kyosei joked before giving another scan to realise what was going on.

"We're cornered and surrounded… fantastic," Kyosei sighed as it watched Izuku turn his way into a dead end before turning around to be met by Bakugou himself with his lackies behind him.

"H-hey Kachan… h-how are you?" Izuku asked nervously trying to at least figure out why he was being confronted in such a manner.

"SHUT UP! I'm getting sick of you! It's been almost two months and you've changed too much. I see you walking around on your phone with a shitty ass smile and you laughing to yourself! So either you're hiding something or you've finally lost it. Either way, I'M FUCKING SICK OF IT!"

Bakugou's rage filled screams were sharply interrupted as Izuku's phone began to ring in his pocket making him regret not putting it on vibrate.

"Hold him," was the only thing that left Bakugou's mouth as he commanded the smirking teens behind him.

Izuku could feel his spider sense going wild in his head but chose to ignore it seeing as he may as well deal with what he had coming. While his arms were pinned behind his back and he was forced onto his knees, Izuku looked down at the ground as his phone was taken from his person.

"Izuku, what the hell are you doing?! You know that you can take these morons, right?!" Kyosei asked, trying to avoid yelling into Izuku's face as he knelt down to the same eye level as his host only to be met with silence.

"Who the fuck is Momo-chan?!" Bakugou shouted as he read the contact on Izuku's phone screen out loud seeing the picture of her smiling softly as the icon. It was Izuku's personal favourite picture that she had willingly given him a few days ago.

"She's a friend of mi-" Izuku tried to explain to him but was quickly cut off by Bakugou laughing.

"You're fucking kidding me, right?! Why would a hottie like her ever want to be friends with you?! She must be one hell of a dumb bitch to be friends with you."

The second Izuku heard Bakugou dare to even utter the word bitch, Izuku felt a strong surge of rage flooding through his system. His teeth ground together as his muscles tensed to leap at Bakugou but forced himself back knowing that it would probably be better for him to stay down.

"Did I hit a nerve? Good. Because a quirkless shit like you is too desperate to think pity from others is actually friendship. Which probably explains why you care so much about this dumb cun-"

Bakugou never had a chance to finish that sentence as Izuku violently broke out of his hold, pushing the two holding him back against the wall hard. The second they were off him, Izuku didn't even hesitate to throw a devastating punch that hit Bakugou square in the face and sent him to the floor.

There was a stunned silence from everyone who saw just what Izuku did to the blonde teen, even Kyosei and Izuku himself were shocked at his sudden snap of rage. Izuku couldn't even stop himself from speaking out with a small sense of regret.

"Oh crap…"

Bakugou began to pick himself up from the ground growling like a wild beast. He slammed his fist into the concrete, turning towards Izuku with a bloody nose and a bruise beginning to form on the side of his face as he growled out to Izuku, "You're gonna fucking regret that!"

"Yes! That was brilliant! Now pummel him to the fucking ground! Give him what he deserves!" Kyosei encouraged its host but Izuku hesitated and instead just grabbed his phone and dashed past Bakugou in an attempt to escape him but that also failed.

"I WILL FUCKING END YOU!"

The enraged teen used his explosive quirk as propulsion before violently grabbing Izuku's shoulder and returning the punch sending Izuku onto the floor like he was seconds ago.

Bakugou didn't show any form of hesitation or mercy to Izuku as he flipped the curly-haired teen onto his back before just wailing on him. An onslaught of punches and point-blank explosions assaulted Izuku for several minutes while he tried to defend himself as best he could with his arms raised up.

"Come on kid! Fight back! You know you can overpower him, easy!" Kyosei shouted at Izuku only to get no response at all.

"You can teach him a lesson! Make him pay for what he's done to you!" Kyosei yelled this time seeming to get impatient.

"AT LEAST STAND UP FOR YOURSELF!"

After a few minutes, Bakugou tired himself out from beating the hell out of Izuku and got off him before turning back and kicking Izuku straight in the stomach and again in his chest before storming off.

The currently burned, bruised and battered Izuku tried to sit himself up but fell back down letting out a loud, pained grunt as he clutched his chest in agony looking up to Kyosei with pleading eyes.

"I'll minorly fix your ribs so you can move but I'm not healing you more than that. You've gotta learn the consequences for not defending yourself…" Kyosei said with arms crossed and an expression that just said it wasn't impressed at all.

"That's fine…" Izuku hissed in pain as he picked himself up and leaned against a nearby wall to keep himself from collapsing before mustering enough strength to start walk-… well, limping.

. . . . . .

In the three weeks that Momo had known Izuku she realised something that she never had the chance to recognise in the past...

Her life was boring.

Sure, she had money to her family name, but that meant absolutely nothing when it made her miserable as all hell. Because all the schools she's been to have been full of self-absorbed assholes, she never associated with any of them at all. Even the ones who seemed nice were just abusing that nice exterior to get to others' money.

And even while she was commonly by herself reading at school, home life was no better. Her parents showed little to no care regarding her becoming a hero or what she wanted in general.

Her mother cared in terms of her wellbeing and being a "proper lady" according to her but she only humored Momo when it came to her dreams as a hero.

Her father on the other hand was very clear on his opinions regarding his daughter seeing as he was a very blunt business-oriented man. He was also very clear when it came to Momo's relationships seeing as he still believed in the recently reformed arranged quirk marriages.

That last reason was why Momo insisted on living by herself at such an age, because they wanted to control almost every aspect of her life.

Another aspect that bore her massively was the lack of a challenge, and yes while it seemed selfish Momo was sick that while she focused on her training as a hero everyone else was worrying if their hair was perfect or not; it got very tiring very quickly.

But once Izuku literally swung into the picture he presented a much more interesting aspect to her life. For once, she met someone who not only knew nothing about who she was, but he provided a major challenge for her both in terms of combat and intellect.

The issue with Izuku was that his skill, strength and speed rapidly improved in such a small time frame that she struggled to even keep up with him. Momo would quickly be finding herself completely out of breath and exhausted whilst Izuku would have only worked up a light sweat.

The challenge that appeared from Izuku's presence became more like an impossible target Momo fully understood she could never reach…

But the offer Doctor Connors made to her kept going through her head at every waking moment. She could have that equal ground with Izuku. She wouldn't be dragging him down with her lack of power.

She could stand beside him and not in another shadow.

"Maybe it'll be better to accept it… for scientific purposes, obviously," Momo clearly lied to herself as she uttered out those few life altering words.

As she was looking at her phone though she couldn't help but be a little jittery since Izuku hadn't picked up his phone for the last 40 minutes, which was completely unheard of for him.

Maybe she was just overthinking it all? Maybe he just got a little busy. That's perfectly acceptable considering how hectic his life was-

*DING*

It was almost worrying how fast Momo's head turned towards her elevator as the ding of someone arriving made her jump out of her seat.

With a slow breath in and back out, Momo walked towards said elevator hiding her inner concern.

As the metal doors slid open, Momo's attention was immediately drawn to the fact Izuku was slumped against the side wall with his hood up so that his face wasn't even that visible to her.

"Midoriya-kun? Are you okay?" Momo asked in a highly concerned tone while Izuku forced himself to walk without support.

"I'm fine, don't worry."

Momo could see it was a blatant lie considering his legs were shaking like he could barely stand on his own two feet. That became less of an observation and more fact as after a few steps, Izuku collapsed onto the floor letting out a variety of pained noises.

"Izuku!" Momo couldn't help herself from instinctively calling out his first name in concern as she rushed to his side.

Worried about how bad the damage was, Momo quickly lifted him off the ground before carrying Izuku over to one of her softer couches and laying him down on his back.

"What happened to you?" Momo asked as she quickly scanned Izuku's body for any lethal injuries but in that process saw that his training weights were still on from the smart watch he was wearing.

"You idiot…" was the only thing Momo said as she let out a sigh before deactivating the weights making Izuku cough out violently as his whole body relaxed into a near unconscious state.

Seeing the curly-haired teen relax and not seem in such intense pain anymore, Momo began to remove Izuku's clothing one by one, leaving only his trousers on his person. Momo's eyes saddened as she saw the large amount of bruising on his chest; it was obvious from the skin alone that he was suffering from mass amounts of internal bleeding.

"It… It's not as bad… as it looks… I hope."

The faint voice from Izuku brightened up Momo's face as she let out a big sigh of relief, making Izuku smile before she smacked his uninjured arm.

"What on earth were you thinking?! What did you think was such a good idea to get you this hurt?! And why are you hurt?! I thought you could heal?!"

All the sudden questions were too much for Izuku to handle in that moment so just went from the beginning of the problem, all the while Momo began to make bandages and wrap Izuku in them.

"After my last class, I was cornered by Kachan-"

"You mean Katsuki Bakugou, the guy who bullied you for years?"

"Yeah... that's him," Izuku was a little surprised that she remembered him mentioning Bakugou but continued.

"Anyway, I was cornered by Kachan and his friends… they held me in place and Kachan saw my phone when you called and… he said things about you and I couldn't help but react. I realised what I was doing then I got beaten up like this," Izuku began to explain before he tried to think of a way to explain Kyosei without actually explaining it.

But he knew it was wrong to lie to Momo.

"And I haven't been healing… because the Symbiote inside me just wanted to prove a point. I may have lied a little when Doctor Connors asked me if there was something wrong when it came to the Symbiote…"

Momo's eyes were just filled to the brim with concern as she listened to Izuku.

"Since my whole concussion episode, the Symbiote gained a form of consciousness and it's been chatting away in my head until I threatened it out of my head. After that we came to an agreement where we would agree to help each other to stay alive… its name is also Kyosei."

"Speaking of which, I need to show something to you when we get home as well," Kyosei chimed in to its host which Izuku briefly nodded to before Momo spoke.

"I presume it talked to you during the whole situation, encouraging you to at the very least defend yourself, which lead to it refusing to heal you… am I correct?"

"Yeah... you pretty much got it spot on," Izuku replied with a strong sense of guilt in his voice that was met with a swift smack on his right arm.

"You! Complete! Idiot!"

With each emphasised word, an additional hit was made onto Izuku with Momo looking upset and annoyed at the same time.

"Izuku… I know about the isolated childhood you had for being quirkless that made you question and doubt everything about yourself, but you need to actually believe in standing up for yourself! The fact that you went out of your way to defend me by punching that delinquent shows that you want to protect others… but you have to protect and look after yourself for the sake of those closest to you."

Izuku just sat there in a silent guilt because he knew that Momo was right. His first instincts when it came to anything was to blame himself or just take it because it was probably his fault anyway.

"Midoriya-kun, you should probably go home… and make sure you heal up. You can't let your mother worry," Momo insisted as she finished up with the bandages.

"Yeah… and I should probably walk to, you know, think things over." Thankfully feeling Kyosei start to kick in his healing factor, Izuku lifted himself up off the couch before slipping back into his clothes.

"Get home safe. And get some rest!" Momo started with a concerned tone before shouting the last part as he left.

. . . . . .

His mind was contemplating everything both Kyosei and Momo told him along with rethinking what exactly he was doing to himself.

Maybe all his doubt and insecurities were why he was such an easy target… he made himself a target.

Maybe these powers where a sign for him to change… for him to perhaps approach with a lighter view.

Izuku's train of thought was promptly disrupted as Kyosei appeared beside him pretending to walk with him.

"Hey kid, so uh… no hard feelings, right?" Shrugging his shoulders, Kyosei looked at his host who just gave a small smile back.

"Yeah, we're good… You had good intentions, after all," Izuku replied as he swiftly moved his hood over his head due to the drizzle of rain now descending.

"By the way, why do you keep calling me kid? You're technically younger than me," Izuku questioned Kyosei earning a shoulder shrug.

"I honestly couldn't tell you. I don't know much about me. I mean, I'm still finding out abilities by the day," Kyosei explained as he gave up with the walking and hovered beside Izuku with his arms behind his head.

"Might be time to start swinging, kid." Seeing the clouds above getting darker by the second, Kyosei warned his host as he was about to turn into an alley.

"Yeah, not a bad ide…"

Izuku froze on the spot as a couple dozen feet in front of him were two darkly clothed thugs pushing a beaten-up man against the wall as he called for help.

"Okay, time for a different all-"

"We're saving him."

Izuku's near immediate response somewhat shocked Kyosei seeing as he knew that intercepting a crime clearly would brand him a vigilante if he was caught.

"Okay kid, I know me and Momo were just on your ass about protecting yourself but this is different! This is borderline breaking the law from what I can get from your head!"

"No… the timing of this is more than a coincidence. Don't you think it's just a little too convenient that you both told me to protect myself and now there's someone who can't protect themselves right in front of me? And I can't just stand here when I now know for a fact I can do something!" Izuku declared with a confidence that even he was shocked to hear as he continued.

"Hearing that quirked crime is so frequent yet being constantly told to do nothing even when I know I have the power here and now to stop this, it's frustrating!"

With a clenched fist and his heart pounding in his chest, pumping adrenaline through his body at a million miles an hour. Izuku with a hidden determined expression marched towards the two criminals noticing their quirks.

One of them had hands that morphed into metal razor blades while the other was just a large brute of a man. It was quite clear to see that these two together were clearly a very intimidating duo.

Kyosei was about to suggest a strategy to his host, because if his host was going through with this then he'd like to keep existing.

But before he could do that…

"You know if you're going to mug someone, maybe don't dress like a mugger."

Completely shocked, Kyosei just watched at how this normally shy and full of insecurities kid had pulled a complete 180 and was cracking jokes?!

"Get lost kid! Unless you wanna be next!" the bladed thug threatened, making his other hand into a blade pointing it at Izuku while the brute slammed his fist into the palm of his hand.

"Well… guess I should get straight to the point!" That last word from Izuku was said whilst he fired a web shot at one of the blades, sticking his hand to the brick wall.

Taking advantage of the brute's large and heavy frame, Izuku used his speed to dash past the brute and wall run for a single second. In that single second, Izuku used his momentum and height of his wall run to kick the trapped thug in the side of the head; knocking him out instantly.

Even as he landed low on the ground, Izuku shot another webshot at the blade thug's other hand, just to be safe.

"Woah… so you actually had a plan," Kyosei said with shock as he looked at the incapacitated thug.

Izuku ignored that little comment and dashed towards the brute firing rapid fire webshots trapping his arms in place. But before he got too close, he leapt as high as he could into the air firing a single web line.

That web line attached to the legs of the brute as he was quickly pulled up into the air, upside down.

As the hooded teen landed back onto the ground, he fired a few additional shots of webbing to secure the large criminal in the air.

"You alright?" Izuku asked with a concerned tone as he turned to the victim who looked more shocked and amazed than scared.

After getting a shaky nod of confirmation, Izuku's expression quickly darkened as he heard sirens rapidly approaching. In a small panic he went into a burst of web zips and swings to leave the scene while he announced to himself and the victim, "Time to run."

He was almost immediately met with his mental image counterpart laughing as he followed his host through the air shouting.

"You're the only one running kid! I CAN FLY!"

. . . . . .

Opening his front door slowly and carefully, Izuku pulled down his hood. Scanning the room, he spotted his mother sat down on the couch.

Thankfully he knew that he wasn't late in… well this wasn't the latest he has come in so he was fine.

After a quick greeting to his mother, Izuku slipped into his room still grinning away to himself while Kyosei materialised in front of him.

"Okay… first: What the hell was that?!"

"I don't know. It was like… when the adrenaline hit me, my brain was kicked into high gear," Izuku explained as he went through the whole situation in his mind over and over again.

"So that explains the fighting. What it doesn't explain is why you were spouting out jokes like it was nothing!" Kyosei asked with his arms now crossed.

"I guess in the moment I thought back to what All Might told me. About how he smiles to hide his own fear and bring hope to others in the bad situation," Izuku said with a grin still plastered on his face.

"Well… as much as I want to complain about that… you actually did an alright job out there," Kyosei admitted with a sense of defeat in his tone.

"Thanks-"

"That doesn't mean I didn't think it was an incredibly dumb plan!" quickly cutting off his proud host, Kyosei glared at him for a good few seconds before he pointed directly at Izuku.

"Take your clothes off, but for the love of my existence keep your underwear on." Izuku was immediately confused with the request but slowly complied anyway.

"Okay… now what?" Izuku asked only for Kyosei to point at the sharp corner of his desk.

"Cut your hand, and after you do... DO NOT. FREAK. OUT."

Izuku hesitated as he did it but hovered his hand over the sharp corner and with a swift swipe made a cut the size of his thumb in terms of length. Izuku couldn't help making a sharp hissing sound from the instant of pain but it thankfully subsided quick enough.

"Like I said, don't freak out."

After Kyosei said that one last time, Izuku watched as a black liquid began to slowly seep out of the cut and cling to his hand. With every second that passed, more of this liquid spread across his body until it eventually covered all of him like an additional layer of skin except for the cut-off point on his neck.

Just before Izuku was about to comment on the last twenty seconds, he noticed that the suit began to take the shape of a fabric that was almost identical to the training outfit that Doctor Connors gave him.

"I will admit, it took me a while to figure out I could mimic clothing and fabrics, but I believe that it'll save a lot of time as a whole," Kyosei explained as Izuku jumped onto the ceiling, sticking on all fours which earned another perked up tone from Kyosei.

"Yeah, you guessed your sticky powers all wrong as well. It's not from the hairs, it's based on electrons which you were stopping because of your thick ass rubber-soled shoes."

Now that it was pointed out to him that explanation of his powers made far more sense than his original analysis. But a better idea came across his mind as Izuku asked the Symbiote a question.

"Can you change this suit's colour and design?"

. . . . . .

As darkness fell over Tokyo, in the hidden lab belonging to Doctor Connors, said scientist smiled to himself as he watched three rats scuttling along the ceilings of their glass cages as if it were a natural thing. As he finished writing up a few more results, he heard his phone go off on his desk.

"Hello?" he answered with a curious tone as he didn't recognize the number. Doctor Connors began to bring up the building's security feed but stopped when he realised the voice that greeted him with a soft "Hi, Doctor Connors," belonged to Momo Yaoyorozu.

"Ah, Momo! So nice of you to call. Is this regarding my experiment?" Already getting his equipment together, he listened as the teen responded.

"Yes… I'm actually outside the building right now."

"I'll let you in right away," Connors stated as he pressed a few keys on his computer opening the door up for Momo as she entered the building while the disinfected syringe was being filled with the Spider Serum.

Being cautious and not wishing to have a possibly murderous symbiote inside her system, Momo asked the scientist as she entered his lab, "Just so I know now, did Midoriya-kun suffer from any symptoms at all?"

"From what Izuku told me it would seem that you'll feel normal for a little bit. Eventually, a heavy drowsiness will evolve, then after you pass out, you'll be hit by a heavy wave of nausea before passing out again. After that, you'll wake up to a body transformation and powers. But then again, it could be different for you," Connors explained as he did his best to remember what Izuku told him.

"Body transformation? What exactly should I be... expecting?" Momo asked with a twinge of nervousness in her tone.

"The best way to describe it would be like an overnight maturity. When I first looked at Izuku's cells, he had traits and cellular patterns only common in someone in their very late teens. But after further study I found his cells had also slowed down in their decomposition rates." Now bringing up a side by side video of Izuku's cells and another set of cells, Momo could see that he was right.

"My theory is that whatever mutation in Izuku's cells happened, it took advantage of a human's evolutionary adaptive rate and matured him physically to around an early prime age of about 18 or 19, then slowed down the rate to keep him there years longer than he should."

Momo thought about it for a second and if she took away Izuku's mannerisms and usual nervousness, then she could easily see him as an older teen with his physique.

"Okay, that's answered all of my concerns. Let's make this quick before I change my mind," Momo insisted as she stuck out her right arm and faced the other way so that she didn't feel as anxious.

"Oh, I should mention as well that this isn't an injection of Izuku's DNA. This is cellularly mutated spider DNA that should mutate your own cells in a similar way. This injection however is diluted enough for your body to kill it after a week or so," the one-armed scientist added.

"Why would you tell me-?"

"Just in case you were ever concerned about having a relationship with him," Connors finished his statement, making Momo bright red in the face.

Doctor Connors took note of that. Quickly getting onto the main reason for her visit, he hovered the modernised OSCORP injector over Momo's arm and slowly inserted the needle into her arm as she flinched at the feeling. Once certain that the needle was in her bloodstream, Connors pulled a small trigger on the injector shooting the serum into her bloodstream near instantly.

Due to the whole injection being so quick, Momo herself was unsure if she even got injected with anything to begin with. She didn't feel any different either.

"It takes a little bit for the formula to kick in. It's probably best if you head home. Be in a comfortable environment and all." Doctor Connors explained as he began to clean up his equipment.

"Okay, and thank you Doctor Connors."

"Nonsense. I should be the one thanking you. You've just helped me make leaps and bounds with my research." Smiling away to himself in a cheery mood, the OSCORP scientist watched Momo leave before bringing up the same formula for the serum he just used while a strand of reptilian DNA was being scanned and implemented to said formula.

. . . . . .

'Okay, fifth time's the charm." Kyosei sighed in annoyance as the suit attached to Izuku began to morph momentarily before its texture smoothed out completely while patterns began to form.

On the underside of Izuku's arms were a dark green colour that reached along the sides of torso and ran down the outer sides of his legs, going down to his feet. On this underside of green however were thin black lines that almost gave a streamlined design of webbing. The chest and back however were more obvious with the arachnid theme as dead centre of Izuku's chest was a large spider insignia that had legs going across his ribs and sides to converge again at the back. While the back also had a spider insignia, it wasn't as large or as flashy as his chest, but it still looked absolutely spectacular.

"Perfect…" Izuku smiled to himself as he looked at himself in the mirror, angled so he could see his whole body.

"Wait, what are we going to do about my face? Because we don't exactly have a mask, do we?" Izuku questioned as he became concerned for his identity.

"One sec, I already had that covered," Kyosei quickly stated as it wiggled its fingers and made an "ooooooh" noise as the suit began to reach up and cover Izuku's face, leading him to close his eyes for a second.

As he opened up his eyes, Izuku could see that Kyosei had formed a mask over his head and face in the same material that covered his body but around his eyes were two green lenses that were shaped into a large set of eyes. Izuku also moved his eyes as well and noticed that his mask's eyes followed the exact same movements.

"I figured that you've got to have some way of emoting behind a full mask," Kyosei explained to its host whilst said boy began to move towards the window.

"Nonononono!" Kyosei quickly spoke up as the hands of Izuku's suit turned to a liquid and attached to the floor to stop him in his place before speaking once more. "I'm allowing this whole whole spider vigilante crap but if you are 1000% sure about this then you've got to learn how to fight properly."

Izuku couldn't help but feel that Kyosei had a point as he was being perhaps a little too eager regarding this whole vigilante thing.

"Okay, did you have any fighting styles in mind?" Izuku asked with a clear tone of curiosity whilst his suit returned to its original shape.

"Actually kid, I have two in mind. Actually, over the week whilst you slept, I took the liberty of learning your planet's culture… and peculiar creations," Kyosei stated in a tone that left Izuku wondering if he should dare be brave enough to look at what things the symbiote searched on his computer.

"Anyway, through research I found out one of your planet's most practical and effective fighters went by Bruce Lee. His Jeet Kune Do style is a 'minimal movement with maximum effectiveness' style that uses adaptability in a fight."

"Wait, I looked into that style, but deemed it inferior and too time consuming to learn due to it being more like a philosophy than a martial art," Izuku interrupted as he realised why the name sounded familiar.

"Yes, but when this is mixed with something like say… Capoeira Martial Arts," Kyosei smirked as its finger pointed to Izuku's computer.

Izuku quickly searched up the martial art before realising what Kyosei was going on about as he pulled the mask off his face and began to mumble.

"Of course… a Martial Art that focuses on flips, speed, strength and unpredictability to take opponents down. How did I miss this? Using the minimal movement of Jeet Kune Do alongside this creates a borderline perfect style to adapt to both my surroundings and opponents. Not only that but with a style like this, I'll easily be able to incorporate my webbing to make it even more adaptable… But wait, how do you expect me to learn these two styles just like that? These two complex styles take years to learn and even longer to master."

Izuku's question, along with a snap of his fingers to emphasise that, just couldn't help but make Kyosei grin to itself like a small child who was proud of doing even the smallest thing.

"Well, that lot didn't have a second consciousness inside their head that works like a subconscious, did they? Step aside, kid, I got this." With his mental image disappearing from Izuku's sight, Kyosei used the symbiote suit and detached from Izuku's torso and arms to Izuku's computer and phone with only a small tendril attaching himself to Izuku's body.

They now began to load up video after video all playing at double speed, creating an ungodly amount of noise which lead to Izuku quickly plugging in a set of headphones so the Symbiote didn't accidentally destroy his ears from the sudden sensory overload.

"Oh yeah, forgot about your senses. My bad," Kyosei half-heartedly apologised, not even looking away from the computer screen.

"You could at least sound like you mean it… How long should this take exactly?" Izuku asked getting a quick reply back.

"About thirty minutes or so. Might as well get comfortable," Kyosei explained while Izuku just laid down on his bed.

. . . . . .

Momo was completely unsure if she was actually injected with anything that worked, however that uncertainty vanished the instant she entered her building. An almost crippling wave of nausea and weakness consumed her as she clung to the wall for support.

"Come on… just a few more minutes…" Sceptical if she could even make it to her room, Momo practically dragged herself through her apartment.

Even with her feet feeling like cinder blocks, Momo reached her bedroom doorway but felt a burst of energy as she ran for the bathroom, loosely holding her own hair back before the contents of her stomach leapt out of her mouth.

After several gut churning minutes hovering above the toilet, Momo pulled herself onto her feet and spent very little time with mouthwash before making her way to her bed. Striping off items of clothing one by one till she was left in only her underwear, she collapsed onto her bed.

"Here's hoping… it all goes fine…" Momo softly spoke out to herself before she lost consciousness and finally gave into her slumber.

. . . . . .

"Aaaaand done."

Izuku, like an excited child, leapt up from his bed. He felt Kyosei's form connect back onto his body and form his Spider Suit once more, deciding to leap out of his open window the moment his mask covered his face.

"Wait… I don't feel any different…" Izuku asked out loud as he web-zipped onto a nearby rooftop.

"Just pretend like you're about to fight. Everything will come with instinct."

Izuku willingly nodded for a moment but as his body flinched, he then instinctively descended down into a crouched fighting position with his right hand on the ground and his left hand behind him.

Pretending someone would be trying to charge at him, Izuku did a full flip to the left with his right leg moving in a way it would hit an opponent as he flipped.

The second he landed his body managed to go back into the same crouched position as before, but his hands were aiming right in front of him.

"Oh wow, you weren't kidding that it would come with instinct," Izuku laughed as he stood up looking at his wrists before running off the roof and began to web zip and swing towards the city in cover of darkness.

"It's time to make a difference, and use my powers for the good of others," Izuku thought to himself when Kyosei spoke up.

"You're gonna need a name out there, aren't you?"

As he kept thinking of names relating to All Might or anything like a spider pun, Izuku couldn't help but realise that a simple name was right in front of him. He flipped over a high building and stuck on the side of a radio antenna as he watched over the city.

"I'll be... Spider-Man!"