Yelena, Kate and you were on a mission not too long ago. You were very good friends, best friends. and almost inseparable. On your mission you made a mistake, and the Avengers weren't happy with that. So, they sent you all to Aleksandra Araignée, aka Natasha's partner, aka the scariest woman you will ever meet in your entire live. Yelena already knew the woman, they almost grew up together in the Red Room, but she knew that Aleks would not give her any advantage in terms of training or sermon