Dixes who goes by Dix is one of the sole survivors in the story AilAid. She is a guard on the mining colony and is one of the few survivors left along with Bray and Ria. She is an older woman in her early 30s and is tough but fair. She is very skilled with weapons and proves instrumental in helping the others survive against the attacks.
Before the colony was over-ran it is shown that she attempted to get more weaponry or training for the guards, but it did not matter much in the end with how fast everything fell apart. She is dating Bray and is happy he is still alive.
As the story goes in she does not trust Ria much as it is unlikely she is still alive. Regardless they decide to fight their way out to the Comm room to attempt to put out a distress call to try to be saved.
Major Spoilers for AilAid:
*Please don’t read below unless you have finished the story as this is a very key reveal and spoils a major part of the book*
Dix is revealed revealed to be a Classed Solider who is sent in to guard the intelligence officer Bray. They do in fact know each other, but not to the ‘dating’ extent they portray. This also explains why she has such good combat skills.