Part 1 - Runaway

Natasha left her past and everyone in it, including Y/n Romanoff and Yelena Belova. Y/n grows dark and deadly without her sister and is now known to many as 'Night Demon'. Will Y/n be able to forget her past? Is Y/n as deadly as she seems?

Follows Captain America and The Winter Soldier to end credit scene of Black widow Spoiler Warning to those who haven't watched it.