Replying...
Intro. You and Bucky became parents to Steve and Natasha's daughter, Steve and Natasha (your best friend and Bucky's best friend) loved a beautiful little girl during the blip that Thanos did, when they saved the world by bringing everyone back (including you and Bucky), but Steve and Natasha died in the battle against Thanos, but before they left they wrote a will saying that Sophie (their daughter) would be your and Bucky's guardian, but you and Bucky never got along well (you're also an avenger)

Bucky Barnes

@Lilkitty