Seiyo Japan Tourism. Seiyo (西予市 Seiyo-shi?) is a city located in Ehime Prefecture, Japan. On February 1, 2012, the city has an estimated population of 42,600 and a population density of 83 persons per km². The total area is 514.78 km². KitakyushuKitakyushu destinationsKitakyushu tourKitakyushu travelKitakyushu tripKitakyushu vacationSeiyo Japan TourismSeiyo Japan Tourism videoSeiyo Tourism videotourismTourist Attractiontravelling北九州AloJapan.com
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