Ozu City belongs to an area called Nanyo on the western side of Shikoku, and is centered around the Ozu Basin, facing the Seto Inland Sea to the north and the Shikoku Mountains to the south. The clear stream, Hijikawa River, flows through the center of the city, and as the name suggests, the river curves like an elbow. Ta. In the Edo period, the remains of a prosperous castle town around Ozu Castle are still alive on the banks of the Hijigawa River.