Raised by a single father who wasn't an ideal candidate for the position, but he taught her how to keep a low profile and survive to the best of her ability. As Aero never showed promise as a warrior (which was the biggest detriment to her relationship with her combat-obsessed father), they were not particularly close growing up. When he finally met his end as a victim of his own bravado (dying in battle) Aero did not feel inclined to mourn his passing, but rather she mourned the change in her circumstances - and that, eventually, became a celebration of her new-found independence. She has wandered ever since, doing whatever she pleases.