Suzume, a 17-year-old girl who lives in a quiet town in Kyushu, meets a young man on a journey "looking for doors." Suzume follows him to a ruin to a dilapidated building in the mountains and finds a free-standing, undisturbed door as if "it" alone were saved from devastation. Suzume feels drawn by an invisible power and reaches out to the door... Soon, doors all over Japan…