Kusu

Kusu lies in an upland basin of western Bungo, watched over by the mountain fortress of Tsunomure. The Mori family held the castle in the Middle Ages, and it was strengthened during the age of warring states. In 1601 a lord of the Kurushima family, descended from the Inland Sea's Murakami maritime warriors, received the district. He established a residence below the mountain, where the small Mori domain took shape.