Ryuu no Haisha

War rages between two neighboring countries, but one side has an ace up their sleeve: an ancient dragon bound by a pact to protect the nation. Despite these overpowering creatures being capable of leveling entire battlefields, they are rendered useless by cavities. And so, a special unit—the dragon dentists—has the important duty of caring for the dragon's teeth. Nonoko Kishii was the only one of many brave volunteers who survived a recent round of recruitment; in order to join the dragon dentists, one has to witness their future demise and accept it without a fight. Knowing the exact circumstances of their fated ends, the dragon dentists devote themselves to their work. One day, they gain a new member who did not undergo the test: Bernard "Bel" Octavius, a young enemy officer killed by his own men and revived by the dragon's teeth. Despite his appearance being an omen of a great disaster, he is placed under the care of Nonoko as a dentist-in-training. Will Bel come around to the dragon dentists' attitudes toward death and help them face the painful future that is to come? The story takes place in Dragon Country. Nonoko is a newly appointed dentist and her mission is to protect the dragon, the guardian of the country, from tooth-cavity bacteria.