Queen of a fallen Kingdom (Natasha Romanoff x fem!OC) (New Version)

Princess, Warrior and Government Runaway.
Ellika is everything but a normal girl. She is the Princess of Arcanus. Or was. Her Kingdom had been slaughtered by an evil force. And now she's alone and there is no way home. There was no more home she could go back to. All that was left was her Destiny, passed onto her when her mother died on that day. Ellika was now the Keeper of the Elements, the Defender of Light, born to keep the eternal Darkness from taking over the planet and the entire universe. On the run from several secret government organizations a redheaded spy offers her the chance to become a superhero. But for that she has to work with the one person who betrayed her the most. Is this chance worth the price? And why does the redhead spark feelings in her that she never felt before?
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This story is set a few weeks after the events of Marvel's The Avengers. Ellika is a 20 y/o young woman who gets recruited for the Avengers Initiative after the Events of New York. She becomes friends with Natasha Romanoff and later develops feelings for her and has to save the world from a threat that cost her everything in her past.