Hajime completes the grueling trial at the end of the Grand Gruen Volcano labyrinth, but at that exact moment, Freid, a demon commander, launches a surprise attack. Hajime is heavily injured, and a desperate battle begins.

Hajime once again saved the day, thwarting Eri's evil plans and the demons' invasion. With the royal capital now safe, Hajime discusses future plans with his companions and classmates.

With the Heiligh Kingdom heavily damaged, Princess Liliana travels to the Hoelscher Empire to request their aid. On their way, Hajime spots Haulia tribe members fighting imperial soldiers. The tribe members bring news of a coming invasion.