A Dragon and her Slayer. After year's of fighting between humans and dragons, the world is left in shambles. With people struggling to survive each day and the risk of being eaten or burned alive humans have almost given up all hope of ever surviving this war. The dragon slayers are no more, their clans decimated and any remaining survivors are in hiding to avoid being hunted down by the ruthless creatures or ridiculed and shamed by their own kind. One lone slayer who's all but given up on the fight discovers something unusual, as a injured knight crawls to his doorstep carrying a unconscious girl who he says could save humanity. Cassian, although reluctant takes the girl in and nurses her back to health, oblivious to the fact he's just taken in his worst enemy. When she finally awakens, all hell breaks loose for Cassian and he is forced to pick up his sword once more and continue following in his clan's footsteps of slaying dragons.