Aileen overcame all the difficulties and got engaged with Claude. Just when she thought she found her happily ever after, she receives news that a demon named Ashtarte attacked a human village in the Mirchetta region. Sensing new dangers, Aileen infiltrates Mische Academy in the Grand Duchy of Mirchetta to investigate the situation. There, she meets James Charles, the last boss of Regalia of Saints, Demons, and Maidens 2 as well as the other quirky members of the student council.
The director of this academy 
is the Grand Duke of Mirchetta.
.مدير هذه الأكاديمية هو دوق ميرتشيتا
Der Fürst von Milcetta ist gleichzeitig
der Rektor der Akademie.
El director de la academia
es el príncipe de Mirchetta.
El director del instituto
es el príncipe de Mirchetta.
Cette académie
est dirigée par l’archiduc.
Il direttore dell'accademia 
è il granduca di Mirchetta.
O diretor deste instituto é
o Grão-Duque de Mirchetta.
Директором академии издревле
является эрцгерцог Мирчетты.