Since the tendrils of humanity encroached upon the Ferus Sea, those that remained unconquered became the frontier of mankind. The Frontier was a vast part of the Ferus Sea consisting of various species, most of which were ancient beastfolk kingdoms who stood the test of time.
However, with the intrusion of humanity into the sea of beastfolks, an organization that stood for liberation was born. It was none other than the Revolting Tide, and a combined group of liberators who made the decision to stand against the authority of humanity.
The one that stood above this organization of liberation was the sole dragon that existed in the Ferus Sea. Laplace, the Dragon of Destruction. It was through her power that the borders of the Frontier remained clear as ever.
No human fleet ever made it out of the Frontier as the Dragon of Destruction guarded its borders.