Y/n is an immortal Tribrid who met Bucky and Steve in the 90's. She had a relationship with Steve, and an one night stand with Bucky after they broke up. As Bucky transformed into the Winter Solidier, he killed her mother and also thought he killed her. She disappeared for years but than started killing again, because she wanted to get their attention. The Avengers tried to take her down, but it wasn't as easy as they thought.All Rights Reserved