Chapter 1

I'm back! Welcome everybody to the first chapter of 'In my Veins'. In this one, we're going to see more influence of the symbiote on Izuku. Also, I reduced all the options of the pairing into 4. That is the following:

Mina.

Momo.

Toga.

Mei.

The poll is open for a short time. You can vote by leaving it on the Review section or simply PM me. Also, in this one, we are going to know more about the symbiote origin. And now, let's go to the story!

Legend:

"Talking."

'Thinking...'

'Symbiote Talking in Izuku's Mind.'

Chapter 1: Freedom

"Izuku! Wake up honey!" Izuku opened his eyes after hearing his mother scream. He slowly rose from his bed and sat down on it. He rubbed his eyes and as he recalled the events of yesterday.

The whole day seemed so surreal that it felt like a dream. A dream! Yes! That must be. It is imposible that anything like that ever happened to him in one-

'For the last time, I am real.' He heard in his head as he let out a short yelp.

"S-So everything that happened yesterday..."

'Real.' The voice affirmed and Izuku felt about to pass out. 'Come on. It isn't so bad to share a body. I have done it for centuries.'

"About that; yesterday you say something about you being from another planet or something? What was that about?" Izuku asked.

'I said that because it is true. I am from a race called Klyntar that to survive we attach to a host to grow stronger. Once done that, we acquire the feelings, memories, ideals and abilities from our host.' The voice explained and Izuku nodded.

"I see. Then why did you choose me? I don't have anything special."

'I was in a situation where I couldn't be picky. I have been in the earth since the dawn of what you called quirks. I was even with one of the firsts heroes. But he rejected me. Since then, I had passed from host to host. Learning and adapting. Until I was captured.'

"C-Captured?" Izuku asked as the door of his room opened revealing his mother.

"Izuku? With who are you talking to?" Inko asked and Izuku shook his head.

"With no one mom. I'll be down in a while." Izuku reassured her. Inko smiled and nodded as she left and closed the door.

Izuku let out a sigh of relief. "That was close."

'Yeah. We can always kill her if she suspects too much.'

"W-W-What!?"

'Calm down. Now let's go to school. I have the feeling it is going a great day for us.' After said that, the black substance came out and covered Izuku's body and it slowly mimicked, Izuku's school uniform.

"Wow..."

'Impressive is it? This is only the tip of the iceberg of our power. Now let's go. I want to talk with you about something important.' Izuku nodded and was going to reach for his backpack, when a black web was shot from his arm, retrieving the object. Izuku stared at his backpack that was now at his hand. He smiled as he strapped it to his back and left his house.

*Streets*

"So, what you wanted to talk about... Venom?" Izuku asked as he was walking towards his school.

'First of all; I am not Venom. WE are Venom. And I wanted to talk about one enemy of ours.'

Izuku decided to ask later what he meant by 'we are Venom' and decided to pass to the more worrying part.

"E-E-Enemy!?" Izuku screamed and people at the street turned to him.

'Yes. It is about who captured me. It is an organization called 'Life Foundation'. They want to learn more about me and my race for some reason. And we can't get captured by them.'

"W-Why?" Izuku asked shakily. He isn't liking the sound of this.

'Because they will kill you and experiment on me.'

Izuku stopped at the entrance of his school after hearing that "WHAT!?" Many students stopped and wondered what happened to Deku or that green-haired kid for him to scream like that. Izuku noticed what he did and blushed and looked down.

'Calm down. We won't get captured by those monkeys. We are a team and it is us against the world.'

"I-I really don't get you..." Izuku muttered as he walked into his class. There as usual was Katsuki Bakugo, AKA 'Kachan', bragging like usual to the rest of the class. Katsuki eyed him from the corner of his eye and grinned maliciously.

"Oi Deku, you know what happened yesterday?" Izuku looked at him "I met All Might as I alone DEFEATED a villain!" He screamed as more praises ran down to him.

Everyone was expecting for useless, weak Deku praise Katsuki or cower in fear as usual but the reaction was different.

"Yeah right. Like if I would believe that kind of bullshit."

Not even Izuku expected to say that.

Katsuki widened his eyes as then the shock turned into pure rage "Deku..." He growled as then he lunged forward to blast the fucking nerd at his face.

He didn't notice how Izuku face was adorned with a smirk.

Katsuiki went for a right hook, but Izuku caught his arm, grabbed the neck of his shirt and pushed him against the wall as the whole class watched in shock as the quirkless nerd just countered the powerful Katsuki.

Izuku started to squeeze Katsuki arm and twisted the neck of his shirt as Katsuki tried to break free of the grip. "You're... hurting me..." Katsuki said and Izuku scoffed.

"And? You hurt me for so many years that I lost count. So tell me; how does it feel to be the one being dominated like a dog, Kachan?" He asked adding more pressure as he lifted Katsuki more.

"What's going on here!?" The voice of the teacher caught everyone attention as he glared down Izuku.

Quickly one of Katsuki's croonies answered "Deku started attacking Bakugo, sir."

Izuku let go of Katsuki as he stuffed his hands into his pockets "Sure. That's exactly what happened." He said with sarcasm lacing in his voice as he then walked out of the class as the teacher screamed for him.

Before anyone could notice, he left through the window and landed at the parking lot.

Some seconds passed before realization hit him like a bullet.

"WHAT HAVE I DONE!?" Izuku screamed holding his face as he franticly started to walk around a car that was there.

'We did what we wanted. We teach Kachan a lesson he won't forget soon.' The voice said as Izuku stopped.

"You did that. You made me say those things and do what I did..." Izuku concluded and the voice chuckled.

'I just gave you a push. You did the rest. Tell me, didn't you enjoy being the big dog for once?' He did like it. 'So why don't you accept it? Why don't you accept your new life? Our power?'

"B-Because what you want is wrong!" Izuku screamed "Y-Y-You want me to kill! That is what villains do! Y-You are a villain!"

The voice didn't answer at first making Izuku feel nervous. 'Look at your reflection. Now.'

Izuku, confused looked at the window of the car, and he saw the black substance in the form of a head with white eyes that took most of its face and a big grin that showed the many elongated teeth that the weird creature had.

Izuku covered his mouth as he took some steps back 'That is us. Why don't you accept it!?' The voice roared inside his head.

"Shut up. Shut up! SHUT UP!" Izuku screamed as he grabs hold of his head. He hears some sound coming, probably people towards his direction. Probably alarmed by the screams.

Before he could react, his arm move and from there a black web was shot towards the roof of a building and it dragged Izuku there.

Izuku landed roughly on the rooftop before the Other spoke again 'I'm trying to help you. Don't you want to be a hero? With my power, we can become the strongest hero in this planet!'

"Y-You would kill people... that's not what a hero does." Izuku countered as he stood up. He hear a groan.

'You know why I choose you and stayed with you? Because believe me, I could have go with Kachan instead. But I stayed here. You know why? Because you ARE special!'

"W-What? No. I am not. I am only stupid, useless Deku. In am not special at all." Izuku kicked himself.

'But you are. And I am here for you. Like I said before, we are a team. Is more you can consider me... your quirk.'

Izuku felt tears welling in his eyes as he was feeling overjoyed. He still don't trust this, thing, but if he can become a hero with it help, we will take it.

'All I ask from you is to live here in your body. This is what you humans call 'Symbiosis'. Right?'

"I guess. So, what are we now?" Izuku asked and the Other chuckled.

'We partner, we are Venom.'

*Life Foundation HQ*

"Did you find the symbiote already?"

"Yes sir. And it seems it found a host, sir."

A tan skinned man with black hair nodded "I see. Have it taken full control over the host?"

The worker shook his head "No sir. Apparently, they are co-existing."

"Co-existing... Interesting. The other subjects were simply killed or taken over completely. I wonder why this is different."

"Sir?"

"Capture the host alive. I want to put him through some tests." The man said as he walked away leaving the worker nod and scan a picture of Izuku swinging across the city at night.

And done! This was the first chapter of 'In my Veins'. I want to make one thing clear: Izuku and the symbiote aren't friends or something like that. They are using each other to accomplish their goals. Izuku to become a hero and the symbiote to survive and grow stronger. Life foundation is a Marvel Universe organization that exists and are related to Venom. I just arrived to Chile so I don't want to explain so if you are curious, sorry but look it yourself. And that's all! Remember to leave your Review that it helps my motivation, PM me for any doubt or suggestion, Follow and Favorite the story and me.

Till Next Time.

Roy D. Harper.

Next Chapter: Adapt or Die