The capital of the Castel Domain, North Port City, was established on the sea, located beside the mouth of the Don River, the largest river in the West Yonette region.
Legend has it that eight hundred years ago, this area was just a coastal marshland, deserted and surrounded by dense forests teeming with demon beasts, and was once part of the Violet Forest.
Back then, the Violet Forest was not yet called the Violet Forest; the entire forest stretched across the Northern Territory Lowlands and was known as the Dark Forest, where many demon beasts would often form tides in spring, attacking villages in the southern human kingdoms.
Later, to permanently solve the problem of the demon beast tides in the north, the King of the New Moon Kingdom established the Pioneer Knight policy for feudal land development.
