a revolt against the shogun fails, she flees with Sen, her loyal
lady-in-waiting. Atop sacred Mt. Koya, Sen's uncle summons the mighty
Kala Sarpa. If all goes as planned, the "Serpent of Time" will transport
Ryo to the present day, safely out of the shogun's reach. But Kala
Sarpa bears a grudge of its own against the Fujiwara clan and seizes the
chance to even the scales. Their fates now fully entwined, Ryo must
travel back to the past to save her future.