y/n x avengers 637

You are a Red Room trained assassin, given the codename of the Black Princess, one of the best and several groups ahead of the others your age. You were trained in the Russian facility, which also trained two members of the superhero group known as the Avengers, Natasha Romanoff aka the Black Widow and Yelena Belova aka the White Widow, where you were considered one of the best. You were given the callsign after being moved up several age groups, earning the nickname 'Dreykov's princess', Dreykov being the leader in the Red Room, due to favouritism shown to you by instructors as a result of your natural talent and intelligence, and the nickname being combined with the name given only to the very best of the best from the Red Room's graduates, the Black Widow. But you didn't last long as the Black Princess, as one of your missions was intercepted by the Avengers, who subdued you and brought you in, giving you the antidote to the mind control you had been put under during graduation. They took pity on you, especially the two ex-Red Room assassins of the group, and took you in to become a member of the team, though you find it hard to adjust to normalities after the strict environment of the Red Room, in which even the slightest lapse in guard or mistake could lead to death...