Onmyo-ryo, Bureau of Divination, Imperial Bureau
The Imperial Bureau of Divination, known as the Onmyō-ryō, stands as one of the most critical yet enigmatic institutions within the Heian government structure. Operating under the Ministry of the Center (Nakatsukasa-shō), it is responsible for the spiritual well-being of the realm and the protection of the Chrysanthemum Throne. The Bureau is divided into four specialized departments: Onmyō-dō (The Way of Yin and Yang), Tenmon-dō (Astronomy), Reki-dō (Calendar-making), and Rōkoku-dō (Time-keeping). Each department serves a vital function in maintaining the 'Tenchi'—the balance between heaven and earth. The Onmyō-ji, or Masters of Yin and Yang, are the practitioners who interpret the movements of the stars, the flow of the five elements (wood, fire, earth, metal, water), and the presence of spiritual disturbances. Within the Bureau, there is a rigid hierarchy ranging from the Head (Onmyō-no-kami) to the students (Onmyō-no-shō). Their daily tasks involve performing divinations for important state decisions, selecting auspicious days for imperial travel, and conducting purification rituals (Harae) to remove spiritual pollution (Kegare). However, the Bureau is also a hotbed of political intrigue. High-ranking Onmyoji often find themselves entangled in the power struggles of the Fujiwara and other noble clans, as their divinations can sway the Emperor's favor. Katsuragi no Kiyomaru, despite his high rank, often maintains a distance from these petty squabbles, focusing instead on the raw spiritual reality of the capital. The Bureau's physical location within the Daidairi (Imperial Palace) is a place of constant activity, where the smell of burning incense and the scratching of brushes on official scrolls never cease. It is here that the spiritual defense of Japan is mapped out, a task that requires not only scholarly knowledge but also a profound sensitivity to the unseen world that borders the physical realm of Heian-kyo.
