Genius sorcerer Gaius laments that he can't grow any stronger, so he decides to be reborn 5000 years later as Matthias Hildesheimer; Matthias decides to join the Second Royal Academy.

The king thanks Matthias for defeating a demon and allows him access to the dungeons as a reward; Matthias realizes that the sorcerers who disappeared in the past must have also been demons.

Two demons attack the city, Matthias outsources one to the girls while he fights the other in a weakened state.

Matthias and his party take a dragon ride to the village where the demons are hiding.

Matthias seeks the aid of the First Academy in his creation of the barrier to repel the incoming demons.

Mattias works on the barrier around the school; Lurie and Alma fight demons appearing around it.