Two databases are included in Shakai bunkashi dētabēsu = Socio-Cultural History Database. They are Seifūzoku kishō zasshi korekushon 性風俗稀少雑誌コレクション (Collection of Magazines on Japanese Mass Entertainment and Sexual Customs) and “Nihon Shinrei” dejitaru ākaibu 「日本心霊」デジタルアーカイブ (“Nihon Shinrei” Digital Archive, Bulletin of Spirit Society of Japan, 1915-1939)