In Kamui, Amaterasu assists the Oina tribe to defeat two recently revived demons, Lechku and Nechku, who were creating a deadly blizzard that threatened to destroy the island. In addition to this, Amaterasu discovers that Issun ran away from his home of Ponc'tan to escape his responsibility of being a Celestial Envoya messenger of the godsand his grandfather. After defeating Lechku and Nechku, Amaterasu discovers the wreckage of a flying ship made of iron: the "Ark of Yamato", trapped in the frozen plains of Kamui. Waka appears and reveals himself to be a member of the Moon Tribe, a long-living race who used the Ark to sail and escape from the Celestial Plain that Orochi invaded. The demons attacked and killed the rest of the Celestials before the Ark fell to earth, releasing the demons upon the mortal world. After defeating the spirits of the felled demons again at the Ark, Amaterasu confronts Yami, the machine-esque leader of the demons who led the genocide of the gods ages ago. After a long battle, Yami drains her power and nearly destroys the Celestial Gods. Before it can do so, Issun, finally accepting his role as a Celestial Envoy, encourages all those they have helped to send their thoughts and prayers to Amaterasu, who regains her powers and defeats Yami, ridding Nippon of all demons. Amaterasu and Waka take control on the Ark and sail back to the Celestial Plain, determined to rebuild the land of the gods.