"That's the territory of Eirlys, the territory ruled by Grand Duke Morgan. If you enter the area further, you will find the south gate, which is the entry and exit for the Victorian Kingdom. After passing through the south gate, there is a pier which is a stop for new arrivals in the kingdom. At the south gate, there are also frequent attacks by monsters from the water that do damage to the gate. Grand Duke Morgan is the one who usually repairs the foundation of the south gate so that monsters can't knock it down."