1942, Japanese Emperor Showa is 17 year old. In the colonized Taiwan, the Japanese army recruited a large number of young Taiwanese to watch allied prisoners of war. These Taiwanese supervisors were involved in a cold-blooded massacre. They were also accused by allied prosecutors of "mistreating prisoners of war". As a result, some people never returned to Taiwan. Meanwile, some people did comeback but never talked about what happened in Borneo...