I love everything about your character! His design, especially
1.) Entropi comes from a city that heavily focused on music, exploration of sound patterns, and rhythm. She may not seem very musically inclined, but she is always thinking about writing songs. She has yet to do so, however, as she is already in the field of her dreams. She feels that her thoughts are unnecessary, and refrains from having any personal hobbies.
2.) She has no apartment, owned or rented in the city. She also has no other place of living in any other city, colony, frigate, ect. She sleeps on a cot in her office, which has basic necessities for her to live somewhat comfortably. While a small space, she manages. She does have to wash her clothing at a coworker's house, however.
3.) Entropi legitimately has a hard time expressing emotion and showing interest in the outside world. She used to, though it was never on a normal level, as she was raised to be Nobility. She feels that showing her emotions, when she's able, makes her weak in the eyes of others.
4.) While always seeming calm and collected, she is incredibly stern and can amplify her voice to deafening levels. She is actually feared in the political world, which she is somewhat proud to have achieved. She's mostly just known to anyone else for her incredible dedication to the medical world, and breaking the record of longest practicing medic/doctor.
5.) She has a secret adoration for fine clothing. Be it a silk-like scarf or sparkling dress, she has to have it. She does restrain herself, however. She tries her best to avoid clothing stores whenever her coworker and subordinate, Jamina, drags her out of her office. Though, it's hard to stay away from clothing stores from the city next door. Or pastel yellow items.
6.) Entropi is always receiving invites to Noble parties in the city next door. She's expected to attend due to her work, but she enjoys dressing up for such occasions. She hates that she's always proposed to at the parties, though. She isn't sure whether the good things she enjoys about them outweighs the bad, however.
7.) Besides her few friends in the medical field, she is alone. No children, no spouse, no family, and no relatives. She had family once, as well as a few relatives. But they died when her city fell in a mysterious tragedy. She also went on to have twins, and kids are incredibly rare for her race (her specific subspecies of her entire species). However, she lost one twin to an illness when they were young, and the other went MIA a long, long time ago. She had to step down from her position on the Medical Board at one point, as the disappearance of her last child stirred some controversy in the public.
8.) She no longer trains Field Medics on an actual battlefield, or at least a place with multiple serious injuries. She hasn't done so since returning to the Board. She directs the conversation elsewhere whenever asked about her decision to stop apprenticing, as she's never really addressed it herself.