Maia

A wandering female mercenary.
A wandering mercenary and former member of the Kuroinu group. When she was a member of Kuroinu mercenaries, she fell in love with their leader, Vault who once saved her life. She was also very popular among their ranks, before leaving the group after she was chosen by Celestine to be one of the princess knights. She is the fourth princess knight to be capture (third in the OVA version) after being defeated by Vault.

(Source: VNDB)