Within the Roghagen Subcontinent, the conflict between the Beastman and Humans continues unabated. Both high-ranking officials from the Beastman and Human factions are focused on how to resist and annihilate each other's forces, attempting to seize each other's resources, strengthen themselves, they fail to notice some quiet changes happening within their own continent.
For instance, dragons have disappeared from many places, a fact discovered by many powerful adventurers who enjoy venturing into forests and wildernesses. Being outside of political control, their findings didn't appeal much to human rulers, because such changes were not necessarily bad news for humans.
However, gradually, through the collective organization of the Adventurers' Guild, information from various places was gathered and the human higher-ups realized that giant dragons were disappearing across the whole continent at a rapid rate.