The Wielder Of Ember

Yelena isn't Natasha's only sister she has a BIO sister Veronika Sofia Romanova who goes by Rory they are all in the 3 yrs in Ohio on the misson
when Natasha leaves she takes her Rory with her
the 2 change there last names to Romanoff
when in the red room Rory is experimented on. on more than the super-soldier serums that her sisters are injected with on top of that she gains a number of abilities
on top of said abilities, Rory is a master Swordswoman she has a number of swords though she has a few other weapons such as knives and pistol's
her main sword is special its like Thor's hammer really but few can touch it without it burning them
Rory joins S.H.I.E.L.D with her older sister and she goes by the code name The Hellish Widow
the sisters are very close but Natasha is pretty protective over her little sister
both sisters Join the Avengers but it leads to 1 of them finding love... as well as a hell of a lot of Drama
Rory is much more then a normal Widow... She is a Legend in more ways then one. there is a story that has been told for many many yrs The Wielder Of Ember. and this is her story

things go down differently here an there

things get messy... but... it only goes from there