Hundreds of years after Yoshihiko (Takayuki Yamada) saved the world from the God of Darkness Desutaku, the world changes into the dark age again. Yoshihiko and his group are revived by Buddha's power and travel all over the world. Can they save the world again?
Balsa (Haruka Ayase) is a 30-year-old female bodyguard-for-hire. Her life changes when she saves Imperial Prince Chagumu who is being carried away by a raging river. They then attempt to return the great egg of the water spirit, which is in Prince Chagumu's possession to its source in the sea. Along the way, they are hunted by hired assassins.