Since Blood is Mine is an interactive comic, it doesn’t really describe what the protagonist does. She just does X or says words expressing X, and the exact details are left to your imagination.

But based on some of the things other people say, I have a pretty good guess/headcanon on how she acts. She talks in a relatively flat tone, and focuses more on conveying facts than emotions. She probably doesn’t move her hands when she talks. She may tend to stare straight ahead rather than make eye contact. She walks kinda herky-jerky like a puppet on strings. She has an odd sense of humor and makes jokes the other characters don’t really get. Overall, she seems less like she’s actually in her own body, and more like she’s maneuvering it from somewhere else.

She’s an unambiguously good and heroic person who wants to save as many lives as she can.

(Neurodivergence is also why I like the Doctor from Arknights, although their heroism is more grey.)