Reign of the Seven Spellblades, Vol. 14 (light novel)

The Sword Roses have miraculously made it to their fifth year fully intact. The six friends continue to study hard and turn their thoughts to what they want to do after graduation--except for one of them. Meanwhile, the Kimberly Magic Academy faculty members are dispatched across the Union to handle an approaching threat. However, they soon realize they've walked right into a trap! With the school in an unprecedented crisis, Oliver, Nanao, and their classmates find themselves on the front lines, face-to-face with the enemy. Who will come out on top? And what fate lies in store for the Sword Roses...?