Soongmun Middle and High School Alumni Association-only membership notebook application. The main function is 1. You can use only the smartphone application, and you can also use the pc homepage linked with the application. You can create and use a separate application for each affiliated club within the Soongmoon Middle and High School Alumni Association. You can continue to use the Soongmun Middle and High School Alumni Association's affiliated meetings with one login. 3. The administrator c