Death Widow

Summary: When the Avengers are sent on a mission to capture a powerful new threat, "Death Widow," they expect the worst-another ruthless villain equipped with dangerous abilities. What they don't expect is the shock of discovering that Death Widow is Y/N Belova, the long-lost younger sister of Natasha Romanoff and Yelena Belova. Y/N, left behind during her sisters' escape, was handed over to Hydra, where she was transformed into a weapon with powers beyond their comprehension.

Now armed with telekinesis, mind manipulation, speed, flight, time travel, and shape-shifting, Y/N is as unpredictable as she is powerful. Beneath her chaotic exterior lies deep hurt, especially aimed at Natasha, her closest sister, who she believes abandoned her. The Avengers find themselves at odds, unsure whether to view Y/N as a threat or a broken soul in need of redemption. With her unpredictable personality-switching between silliness, empathy, and anger-Y/N's journey of reconnection, revenge and self-discovery will change everything they thought they knew.