Thaim is devastated by Nagi's sacrifice. His dragon's roar suddenly pierces his ears, awakening to a new power. Meanwhile, the evil force in Upananta begins its destructive transformation.

Aktha and Supes's dragons go on a deadly rampage under Pytonpyt's control. Thaim and Aktha must travel to Ancient KOTOWARI and uncover its hidden truth in order to stop Pytonpyt's invasion.