Shuri isn't the default Black Panther in the comics. T'Challa is the more common one. But sometimes, depending on the specific comic arcs or alternate timelines, Shuri can step into that role.
Shuri's age varies depending on the specific comic storyline and continuity. But typically, she's depicted as being in her late teens or early twenties.
Shuri is extremely smart in the comics. Her intelligence is shown through her ability to outsmart villains and create advanced technologies that give her an edge. Her strategic thinking and problem-solving skills are top-notch.
In shuri fanfic, a recurring theme is her as a role model. She is portrayed as an inspiration for the young in Wakanda, especially girls interested in science and technology. Her adventures outside Wakanda are also a common theme, as she goes to other lands and encounters different cultures and challenges. And the theme of her relationship with the Dora Milaje is explored sometimes, showing how she interacts with these powerful warriors.