That day, Anos had a dream about a time that he lived together with a young girl. The young girl is strangely also named Arcana…. Furthermore, the fact that the Draconids called the fusion of Sasha and Misha the Goddess of Absurdity, Genedonov, was also a problem. To investigate the piling mysteries, Anos decides to take a special class in the Underground World. And as a special lecturer, Anos teaches the student of Demon King Academy himself!?
Arcana...
...أركانا
Wann hast du dich in mein Bett
geschlichen, Arcana?
Arcana, ¿cuándo te colaste en mi cama?
Arcana,
¿cuándo te has colado en mi cama?
Arcana, quand t’es-tu glissée
dans mon lit ?
Arcana,
Arcana, quando se enfiou na minha cama?
Аркана… Когда ты забралась
 ко мне в постель?