Be Thou my Vision
Alienor Paisley is an average, unexceptional citizen of New York City, New York. That is, until aliens attack, and El is forced into things she doesn't understand. And when she's thrown into the Tesseract and miraculously lives, things get a lot worse. But not all of it is bad. She gains a power that is unstoppable, becomes best friends with the Avengers, and meets people who finally understand her. Until Tony creates Ultron. And Ultron creates... The Vision. Someone who is just like her; who controls an infinity stone. El is first only intrigued, but after the war is over and the Avengers beat Ultron, her and Vision become near inseparable. But that is only the beginning.