Author's Note: Hi! Welcome to my first MCU full-fledge fic. This will be (eventually) a StevexOC pairing fic with the first introduced OC. If some of you are here from my current previous shot, then you already know there's going to be a second OC introduced in this fic too! It'll eventually set up a second pairing of BuckyxOC! For the time being, that second OC will just make sporadic appearances in this fic. The main OC of this fic is Seren.

Seren's face claim is the actress Mariluz Bermúdez with green eyes and short ginger hair.

P.S. As always, I have a tumblr account dedicated to my fanfic works! It's a place where anyone can comment about a story or even just talk to me! I often drop aesthetic work belonging to my stories too! Feel free to check it out, my URL is "saiilorstars"

1995:

An older woman walked down S.H.I.E.L.D.'s corridors until she came to the office she was looking for. She gave a light knock on the door before coming in. She came up to the dark-skinned man working fervently on the computer at his desk. Her eyes lingered over the untouched gray suitcase sitting at the edge of the desk, almost seeming like it was discarded.

"Not choosing any of those?" She asked with a light smile. Her expression sparked with the knowledge that she already knew the answer to her question.

"Don't know," the man said distractedly. "Do you need something, Agent Dade?"

"Oh, I don't know, after what happened, I think it's more of what you need—you and S.H.I.E.L.D. of course."

Nick Fury learned long ago when there was a proposal looming over and right now was one of those moments. He stopped typing and looked up at the woman. "Is there something on your mind, Atria?"

Atria's lips stretched into a wider smile. They were more on the personal side now and that was exactly what she wanted right now. "Always. You know me and my special mind...and all…"

"Mhm," Fury subtly glanced at the door that remained shut. "Are we going to discuss that now?"

"You know I blew my cover helping Danvers out." Atria bit her lower lip as she considered her recent decision one final time before actually acting on it. "And you haven't said anything to anyone yet."

"Well, it's not really my story to tell now, is it?" Fury said, making Atria hum.

"Good answer." Her eyes flickered to the computer in front of him. "Meeting Carol Danvers made you realize something, hasn't it?" Once again, she asked the question with an implication that she already knew the answer.

Fury was always impressed how Atria knew things that no one else seemed to know about. Before, he used to wonder how Atria knew things, but now it just made more sense. "What are you? Psychic?"

"Among other things," Atria said, feeling an instantaneous relief when she realized she could freely joke about things like this with him. "Although I'm technically a seer," she later added due to Fury's flatout shock. "I know what you want to do, what you plan to propose," Atria went on, "The Avengers' Initiative, right?" She waited for Fury to silently nod. "I think it's smart. Carol Danvers proved that peace can't always be kept. For me, it proved that I can't stay hidden forever either. Sooner or later, something is going to come and make us fight like we've never fought before."

"And you saw this with your...seer powers that you apparently have?" Fury tilted his head at the woman.

Atria smiled lightly. "I can't see that far into the future. Call it my intuition, call it...my experience before coming to Earth. I came from a planet called Celessia a very long time ago."

"And you've managed to keep this hidden from S.H.I.E.L.D. how?"

"Celessians are humanoid. Plus, I'm pretty smart. I know how to make my DNA look just like yours," Atria then tapped the side of her head. "And I'm a little bit of a seer, remember?"

"That's how you do it, then," Fury shook his head. "I knew there was no way you could beat me at poker."

"No, actually, that was all me. You suck at poker."

"So what are you saying then? You want to be part of this initiative? You'd have to tell the truth to S.H.I.E.L.D. you know."

"Something that I foresee won't be a problem thanks to Carol," Atria shrugged. "And yes, I would like to be a part of the Initiative. I would also want to bring in my family. My daughter and her daughter are Celessians too. My granddaughter, in particular, has the potential with some training and more years to grow up. I'm a little past my ripe Celessian pique, but my granddaughter will be exactly what you need, perhaps even more."

"Your granddaughter?" Fury didn't recall Atria's family nor any other S.H.I.E.L.D. employees' family for that matter. He never really bothered with that stuff. "Isn't she a child?"

"She's nine, but I know that if she's given the proper training and the room to grow, she will become one fine Agent...Avenger." Atria's smile could almost crack her face thinking about the future. "Seren will be amazing. She could make Captain Marvel proud."

~ 0 ~

Four years later.

A young teenage girl sat cross-legged on her bedroom floor. She was trying her best to concentrate in order to 'meditate' like her grandmother had advised her countless times, but that was hard to do when she could hear the loud arguing going on downstairs. As much as she tried to focus, she couldn't find any inner peace when her mother and grandmother were arguing like cats and dogs.

She cracked an eye open when she heard some particular colorful vocabulary leaving her mother's mouth. "So much for being proper," she whispered. With a sigh, she gave up trying to meditate and got up from the wooden floor. She fixed her jean shorts and put on her sandals. She walked to her door and opened it a smidge. As soon as she did, the argument slapped her in the face. They were really loud.

"You can't keep doing this to my daughter!" Her mother was saying.

"I'm not doing anything, Liana! Seren has a right to learn about her Celessian origins!" Her grandmother argued with the same line every time they got into it.

"You are helping S.H.I.E.L.D. weaponize your own granddaughter!"

"No one is weaponizing her! She's learning how to use her abilities—the abilities that are growing finely, by the way!"

"She's fourteen, Mother!"

"And by that time, I had already learned much more!"

"Because that was your custom on your planet! This is Earth, this is different! You're only pushing Seren to learn more because of that Danvers girl and that Initiative!"

At her thirteen years of age, Seren Soul had listened in on way too many arguments about her than she should have ever heard. She sighed heavily and closed the door. She heard enough and knew what they would say. She wasn't a seer like her grandmother Atria but they had the same argument every time they saw each other.

On some level, Seren could understand what her mother was trying to say but Seren thought differently. No one was forcing her to do anything, no one was forcing her to train, to push herself to be better. Her grandmother asked her each time if she wanted to keep going and she did. Seren always did.

"I'm not a child," Seren muttered as she walked over to her desk. She picked up a file that her grandmother had dropped off earlier that week. Seren had asked, she had begged, to see the file on the woman responsible for S.H.I.E.L.D. taking an interest in her in the first place.

A light smile spread across Seren's face when she went through the file again. She wasn't planning on being a weapon, on being a copy of Captain Marvel. She wanted to be her own person, her own hero who could do good for the planet—her planet. Her mother was absolutely wrong. No one was forcing her to do anything. She liked what S.H.I.E.L.D. stood for and she wanted to do her part to help them out.

And she would.