After the Last Dragon, I Became a Dragontamer

At the graduation ceremony's class change, when the 3S-rank pillar of light—symbolizing the strongest talent—engulfs me, the entire venue falls silent. My awakened profession is actually "Dragontamer," a class that vanished a century ago along with the dragon race! Amid the mocking laughter, I touch the dim dragon crystal in the principal's arms. In an instant, the crystal shatters, ancient dragon roars echo through the heavens, and legendary skills never before recorded materialize in the void. The next day, I enter the forbidden zone and use my blood as a catalyst to awaken dragon spirits that have slumbered for millennia. Nine massive dragons burst through the sky, their wingspans blocking out the sun. In a globally broadcast ultimate showdown, I softly chant in dragon tongue, and the enemy's million-strong army retreats like a tide. It turns out that what dragontamers tame isn't just dragons—it's the wildest power in this world, the immortal war spirit of the dragon race!