There are a lot of things ohhh boy. My number one is introducing Ezra, and Idk how to even describe them? They're 5'2, willing to slash your finger if you touch them, and is both a friend and foe. Overall, they are one of my favorites to write. They're also NB, which I think adds a pinch of diversity.
Also some stuff with two of the MCs. I can't go into detail without exposing some stuff, but some of them are not the species they are thought to be.