The story of a young woman fighting for her survival in a real "urban jungle." Only 18 years old, Kuniko Hojo finds herself at the heart of the battle for humanity's future when she discovers that the government which rules Atlas intends to continue marginalising the less-privileged masses outside the tower - by force, if necessary. Follow Kuniko and her rag-tag group of guerrillas, Metal-age, as they fight for survival in the amazing surroundings of a bustling metropolis reclaimed by nature. Even in this superheated future, both bravery and the human spirit can persevere.