On September 2, 1945, the Japanese surrender ceremony in WWII was held. Japan signed a capitulation to the United States, the Soviet Union, Britain and China, and history should not be forgotten. The "comfort women" system is part of the brutal memory of Japan's war of aggression. Not long ago, several victims of the "comfort women" system during the Japanese invasion of China were newly identified in the mountainous areas of Hunan. Their personal experience revealed the tragedy of "comfort women" in mountainous areas, which happened more than half a century ago. Today, most of the victims are over 90 years old, and the oldest is 105 years old. Our crew went to visit them. During the filming, another survivor passed away.