Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Kami-Kitazawa Station is a railroad station located in Setagaya, Tokyo, served by Keio Electric Railway Kei Line. Keio Corporation is a private railway operator in Tokyo, Japan, and the central firm of the Keio Group that is involved in transport, retail, real estate and other industries. The name "Kei " is derived from taking one character each from the places through which the railway runs: "T ky " and "Hachi ji".