在城市的角落，地下世界悄然绽放，隐秘而又神秘。日本少女漫画大全全彩中文

　　A documentary about the underground structures scattered around East Asia and their history. Starting from Busan, the film explores Jeju, Okinawa and many other places of painful history in East Asia. As the recent images are overlaid by past voices, unforgettable historical memories are recalled. The lasting underground structures remain as a scar of history.