As Akeno, Astrea help up a cheerful, determined, and ignorant persona. However, this was typically just a facade, and her human identity was normally used to let her perform reconnaissance for her brother.
As her true self, Astrea is very strict with her subordinates, often threatening those who may rebel from the Teoti cause. This made her feared by both Sougyoku and Zagan, making them comply unwillingly. Deep down, however, Astrea has limits and deeply cares about her family, being visibly saddened by her father's death and becoming desperate for assistance when Kannagi lost control due to the forbidden code. She even went so far as to beg Abuto Usui, a former underling, to save Kannagi, afterwards pleading that Camalus and Bahram execute her instead of her brother.
In the series
- She shares the same Cantonese voice actress with Tsuranuki Daimonyama.
- She shares the same Taiwanese voice actress with Abuto Usui.