Okko: The Cycle of Air #1

It is the Spring of 1110. Okko is called upon to assist the daughter of Lady Mayudama, who has retreated into a profound silence. The best doctors have been unable to provide even a diagnosis of her condition. Okko may prove to be her last resort. But a strange force that has been prowling around the region for over a week has also arranged a meeting with the ronin for a duel of incomparable violence.