在地下世界探险，梦想与现实交织成诗。异地恋2天做了40次

　　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.