Astaris is the daughter of the esper criminal Magnamum Vega. After seeing her father killed by Justy when she was five years old, her desire for revenge was so great that it activated the latent esper powers within her, causing her body to age rapidly into that of a young woman. She retains the mentality of her actual age, however.

In the future humanity is spread throughout the galaxy. In their efforts to combat criminal espers the Cosmo Police are fortunate to have Justy on their side. However the esper criminals also know this and some of them are making plans for Cosmo Policeman Justy. As their leader says "There's only one way to kill the most powerful esper in the galaxy".<br><br>
(Source: AniDB)

Her true name is Yoshiko Masumoto (増本美子) and her maiden name is Tominaga (冨永).  She works for mint Avenue.

[Blog](http://ameblo.jp/tominaga-miina/)

Astaris Vega