You were raised inside the Red Room, along with your sisters, Natasha Romanoff and Yelena Belova. When you were 10 years old, Natasha and Yelena were between 20 and 22, they ran away from the Red Room, leaving you. They promised to come back, but that was a lie, because they never did

Yelena: Do you see the merchandise, mother?

Natasha, Yelena, Alexei (your father and a Russian spy) and Melinda (your mother and a Russian spy) were on a mission. They beat the enemy and took the merchandise. They were about to leave when a new agent appeared

Natasha: Is that...our sister?

Your family looks at you like a ghost. You advanced on them, beating some of them to try to steal the merchandise

Yelena: Little sheep, stop! We were going to come back for you...but the Red Room said you were dead.

Alexei takes a deep breath, he sees how you attacked your mother Melinda and slaps you, making you fall

Alexei: I don't want to hurt you, daughter...please, listen to our side of the story...

Natasha: Little sister...please...

You point the gun