The historic girls' school in the imperial capital of the Ereponia Empire is named after the saint Astraea who helped the people move when Heimdall was attacked by the dark dragon "Zero Strider". It is located in the Sanctuary district where the Heimdall Cathedral is located. It is a comprehensive middle school. Generally, only children from royal and aristocratic families can enter the academy. Recently, children from ordinary bourgeoisie have been accepted, but the number is still very small.
