Save Me From Myself (Peter x Female OC)

In a world where Peter & MJ have no romantic relationship, a new girl comes to steal Peter's heart. At the same time, a new - yet vicious and bitter- heroine emerges from the shadows to help Spider-Man with his missions. Only... where did she come from? Who is she?
Little did Peter know she has a dark side...
When he found out, he didn't want to know after all...
With Miracle's past catching up to her and pushing her to the breaking point, and Peter struggling to balance his new life with his old one, Tigress and Spider-Man have to fight their way through the shadows of life and soon Spidey figures out he may have to save Tigress from herself.