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.
I'll act as the Grand Duke of Mirchetta's proxy.
.سأصبح ممثل دوقية ميرتشيتا
Ich werde zum Stellvertreter des Fürsten.
Yo haré de delegado del príncipe.
Yo haré de delegado del príncipe.
Je vais temporairement
remplacer l’archiduc.
Per un po' farò le veci 
del granduca di Mirchetta.
Atuarei como procurador do
Grão-Duque de Mirchetta.
Я временно займу место эрцгерцога.