The "Zijin Grass Voluntary Service Team of Learning from Lei Feng" was set up by The Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders. At present, the voluntary service activity items include three major categories of "social education category, professional service category, and assistant management category" and eight subdivided positions including "explanation service, civilized guide, artistic performance, language translation, sorting out cultural artifacts, caring for the survivors, media promoting, and emergency medical aid".