Shuri
A teenage tech genius and the younger sister of the King of Wakanda.
Where is she from?
Like a lot of Marvel Comics characters, Black Panter has an extremely large supporting cast that you have to be pretty well read to even know they exist. Shuri, the younger sister of a 50+ year old character, only debuted in 2002. Still, by 2008, she earned a huge in-story promotion, taking over the role of Black Panther herself and serving in that role for several years.
One of the best things about 2018's live-action MCU film Black Panther was just how eager it was to put the women of the movie in the limelight, making them all heroic badasses in their own right. Shuri, played with absolute swagger by Letitia Wright, is not only the newly-crowned smartest person in the MCU, running a tech lab that dwarfs anything else in the entire series, but is also, across the entire movie, always the coolest person in the room. This character can go on to do absolutely everything.