Because she’s basically me in high school. Smart, straight-A student, but who knows little about how the real world works and actual practical knowledge. She’s a mediator and tries to keep people in line, but can get flustered and has a lot of insecurities underneath. She’s constantly pressured by her family to keep up her grades, be the best, be involved in school activities, etc., but she’s had little experience with actually finding herself and her own motivations and goals and has spent her life being led by others. She puts up a wall of strength and confidence, but has a ton of vulnerability behind that wall that comes out sometimes. All of these things describe me in high school to a T. She’s amazingly relatable.
She’s also badass, one of the most useful characters in the game, has the best awakening, and is one of the most well-integrated characters in the plot due to her sister and situation. (She’s also IMO one of the best-suited characters to date and she’s adorable with Joker, plus the game almost seems to put them together at least in base P5, if you care about that, but that’s minor)
Anyway, I could go on and on