The Black Widow program employs 28 orphaned girls, preparing to enter China and the West in a way that is unrecognizable. It is during this program that the minds of these people are filled with false memories, as if they were practicing ballet at the Bolshoi Theater. In the end game you remember, Natasha had two ballet shoes.
That’s how they are here. Referral to a special treatment by Lyudmila Kudrin. It is through this that they get special things like maintaining their youth for a long time, good health and good flexibility. In fact, it’s like another version of the Super Soldier serum given to Captain Rogers.