After the Last Dragon, I Became a Dragontamer

At graduation a 3S-rank pillar of light engulfs me and the hall goes silent. My awakening reads: Dragontamer — a profession believed extinct with the dragons a century ago. Laughter follows. Desperate, I touch the dim dragon crystal the principal guards. It shatters. Ancient roars tear the sky; forbidden, unrecorded dragon skills bloom in the void. The next day I breach the forbidden zone and, with my blood as catalyst, rouse dragon spirits that slept for millennia. Nine titans rend the clouds; their wings blot out the sun. Broadcast worldwide, the final confrontation comes. I whisper in dragon tongue. The enemy's million-strong army recoils like a breaking tide. I discover dragontamers do not merely tame beasts but bind the immortal war spirit of the dragon race.