Weak? I Tamed the Real Dragon!

Andy Sanford wants to be a Dragon Tamer, which was the strongest class anyone could take until the dragons of Blue Star died out and left it worth nothing. Everyone else awakens into classes that are good for fighting the beasts and the evil god that has come down on Blue Star to enslave or kill everything alive. Andy gets into the military university in the capital on his own marks and takes the Dragon Tamer class anyway, to general mockery. Then the Divine Dragon System opens to him and he can summon ancient true dragons, the eastern kind. What this world calls dragons are western lizards said to carry a trace of true dragon blood. Andy is pulled into a fight between larger powers and goes into the Land of the Fallen Gods, where the things he meets come from outside this world.