Miura Kyoji, a dedicated kendo student, discovers that his instructor, Tate Masanari, is a reincarnated Inca warrior named Yawaru who wishes to destroy the world to purify it.
As Yawaru gathers other awakened spirits such as from Kyoji's friends & enemies to give him ever more power, Kyoji faces conflicting loyalties; he must decide if he is merely a vessel for the reincarnated soul, destined to fulfill a role given to him and destroy a person he liked and respected in order to save the world, or if he is a free individual who can bring Masanari to his senses and break the cycle of rebirth and human possession.
They all travel to Asuka to release or prevent Iryatesse, a source of power & energy for all that lives on Earth.
Tate/Yawaru plans to release Iryatesse in order to create his ideal world, which will also cause the deaths of millions.
Two clips from episode 3 of Nazca are used in the opening titles of the American sitcom Malcolm in the Middle.