Nonoko is a freshly assigned dentist and her mission is to defend the dragon from tooth-cavity bacteria. During the increasingly relentless battles with neighboring country, she found a boy soldier laying unconscious on the dragon’s tooth. Bell is his name and he was resurrected from within the dragon’s tooth. It’s a supernatural circumstance that legend indicates before a great catastrophe occurs. Bell and Nonoko eventually learn to accept their fate as both experiences a series of furious battles.