Ehime Prefecture, with many islands of various sizes, is located in the northwestern part of Shikoku and consists of three major regions: Toyo, Chuyo, and Nanyo. It is characterized by dry and sunny weather with little precipitation throughout the year due to the influence of the Seto Inland Sea region's climate. Ehime is blessed with both ocean and mountain scenery, including a rias coastline with complex topography, the Seto Inland Sea with few natural disasters, and Mount Ishizuchi, which is one of the highest mountains in western Japan. The Matsuyama Castle, designated as a national treasure, has a beautiful and impressive castle tower and stonewalls. Ehime Prefecture is blessed with well-drained, nutrient-rich soil, and citrus fruits such as mandarin oranges are actively cultivated. The terraced fields of mandarin oranges provide the oranges with the sunlight from the sea and stone walls, and the oranges in Ehime grow into large, sweet fruits that have long been loved by people of all ages. Ehime's rich natural environment and history are a fascinating attraction for many people.