Okay, um... I'm going to try to explain the game a little here.
There are three layers to the game: Online, which is where the blogging takes place and is the bulk of the game; Universe - Canon, which is the "canon" Chronicles of the Shadow Nebula written by GTM (it's a story-within-a-story without choices since it's already written), and Universe - Noncanon, which is where all of the fanfiction goes (which is a different story-within-a-story, with choices). Magic exists in the Chronicles of the Shadow Nebula; both the Canon and Noncanon universes include magic and stuff, as the Noncanon universe is built off the Canon universe.
In the Canon Universe, Gali is a (presumably cis) boy and is the main character of the story. In the Noncanon Universe, Gali can be any gender. The first fanfic shown, Luna's fanfic, has Gali as a trans girl. The PC's fanfic doesn't have to follow any of those. In the PC's fanfic, Gali is just a perspective character; they don't necessarily have a set personality. I'm going to be working on this for the post-comp release, which will hopefully have more options for defining Gali's (and everyone else's) personalities in the Universe - Noncanon.
Also, the Universe - Noncanon parts of the story are less important overall than the Online segments, and they can be skipped later on.
Sorry, is this too complicated?