Originally Posted by
Ryllharu
Thus, she's very aloof, wants nothing to do with anything but her own individual affairs, and she's mildly malicious about it all. She enjoys this, and casually threatens others because they're really no threat to someone like her.
There's no feeling of Mary Sue about her. We know she's earned all of this by overplaying the game in her hospice bed. They don't try to play it dramatic, loading up the gravitas and attempting to bullshit the viewers with misdirection like she has any chance at all of losing. They explore her situation from a fun perspective instead, with the rare flashes of guilt, resignation of her isolation, and her cold lethality to contrast the fun moments.