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.
This academy is a mirror of Mirchetta, and the
 student council is a mirror of its government.
.هذه الأكاديمية مرآة لميرتشيتّا، ومجلس التلاميذ مرآة لحكومتها
Die Akademie ist ein kleines Milcetta,
Esta academia es como una pequeña
Mirchetta y el consejo es su gobierno.
Este instituto es como un pequeño
Mirchetta y el consejo es su gobierno.
Cette académie
est un petit Mirchetta,
Quest'accademia è come una piccola Mirchetta 
e il consiglio studentesco è il suo governo.
Esta escola é um espelho de Mirchetta, e
este conselho, um espelho de seu governo.
Наша академия —
 как маленькая Мирчетта.