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!?

The sacred Sojourner's Psalm to be performed at the Divine Dragon Festival is in danger of being cancelled due to Ahide's schemes! Ellen and the Anos Fan Union are asked to take the stage instead as the Dilhade Demon King Choir. The Draconids are drawn in by their song and begin to sing along. Meanwhile, while trying to pursue and capture Ahide, Anos encounters Dietrich, the King of Agatha, who has received a prophecy from the Goddess of the Future Naphta.