Mozu is a villager from Hoshido, who until the days war broke in had lived peacefully in a small village in the border between Hoshido and Nohr.
In her Paralogue, her village is attacked by the Faceless, killing everybody else. As Mozu and her mother nearly make it out of the village, her mother is killed by one of the Faceless and Mozu survives just because she managed to hide in the nearby woods. As luck would have it, she would be rescued by the Avatar and their army, who had been told about the attack and were looking for survivors. Faced with few options, since she is by herself and has nothing of value anymore, Mozu joins the Avatar's army, and strives to be useful to their cause and to make up for everyone else's sacrifice.