SAKUGAN - S01

The "Labyrinth" is a vast space deep underground where humans live in groups called "colonies." Over the years, the surface has become a distant memory, maybe even just a fantasy to those who have never seen its wonders. To keep humanity alive in the harsh underground, a colony's citizens can take on various specialized jobs. These include "Workers," who mine precious ore to fuel the colonies, and "Markers," who travel into the Labyrinth's surprisingly lush environment to bring back information that makes navigation easier. But humanity also faces a threat to its existence: creatures called "kaijuu," whose sizes range from that of a small child to an enormous building, and who are hostile to any human they see. On top of that, kaijuu large enough can force their way into the colonies, making them even more dangerous. Memenpu is a nine-year-old college graduate whose inventions have greatly helped the Workers in her local colony. Lately, though, she has been dreaming of a place with a neverending ceiling not bound by bedrock. These hopes fuel her desire to become a Marker and explore the Labyrinth's vast unknown in search of such a fantastical place. Despite her father Gagumber's strong disagreement, a certain incident with the kaijuu kicks off a dangerous yet exciting adventure that will surely change humanity's course forever.