Agent Aurora McKoy is the first- and last of the secret 5; a team of extraordinary assassins created by rogue S.H.I.E.L.D. agents Angela and Jakob McKoy. These human experiments were the products of wild and dangerous human imagination. Each set apart with different physical aspects and powers, Aurora was always the strongest, the proudest. Given large, angel-like wings and the power of flight, invisibility, and forcefield, she was deemed the leader. Now, the last of her family, left with 4.7 Billion dollars and a few deaths to avenge, she builds her criminal empire, claiming the title of #1 most wanted on S.H.I.E.L.D.'s hit list at the age of 27.
Steve Rogers: Everyone's favorite hero, and Aurora's least favorite human. And for this Captain, the feeling is most definitely mutual.
So when a particular godly asshole destroys McKoy tower, steals her newly claimed tesseract, and turns Clint Barton into his personal flying monkey, Steve and Aurora come to a very unstable, very unwilling agreement to set their differences aside and reclaim their stolen weapon. But they never agreed to be nice about it.
(The Avengers storyline with a few tweaks // book 1 // Steve Rogers)