Theory: Sooo... is Zero a shard of Azem?
As per the title. She's the Ardbert equivalent of the 13th.
In the past I thought this may be the case with Unukalhai, but as I went through the 6.x quests, I noticed more and more how she ticks all the boxes. She loves her world and is caring towards the people she meets. Of course, the realities of the Contramemoria and the world post-flood would greatly mold her personality into a much colder version of our beloved WoL, but I've noticing more and more that she is a great hero at heart, as much as her reality allows to, not unlike ourselves. In a way, that could even explain why the flood didn't consume her.
So... thoughts?