Hidden Christians imigrated to Aosagaura, a northern part of Nakadorijima Island on the middle of the Goto Islands, from the Sotome region during the Edo era. Entering the Meiji era, around 1878, the first cathedral was built by Catholics. the present Aosagaura Church is the third cathedral designed by Yohei Tetsukawa. It is designated as a national important cultural property.