The last war destroyed humanity. All that remained were the ruins of cities and gigantic gaps connected into an endless labyrinth. The survivors, for centuries, have been studying it, trying to find a way out. Most people have resigned to their fate: they founded settlements at the crossroads of the labyrinth. But the faithful wanderers remained true to their goal— a tribe of nomads who live and die searching for an exit. One of them, Kan, was ready to give up and abandon the search—until he met a girl who could lead all the wanderers out of the labyrinth.