Humans vs. dragons—who will survive? Once driven to near extinction, the dragons have returned and humanity’s battle with the strongest creatures restarts! The Arcana Kingdom throws everything they have into the ring—their strongest aces and all Eight Sacred Treasures—but in fierce battle, they drop one by one... Can Sansui Shirokuro return to Arcana in time and save his family and friends? Only the strongest will live on as the story of the World’s Least Interesting Master Swordsman reaches its grand finale!
