Xsian Astrology
A practice of magical study originated in ancient Hai-Xsia province, said to have originated from ancient practices of fortune telling and geomancy. Practicioners were often titled Oracles or Astrologers; chief among their duties were predicting the future, especially where it came to the weather (for agriculture) or planning military strategies. They were said to be able to do this by reading the stars and the alignments of the planets, and thereby determining the will of the Heavens.
From Astrology, the low schools of Black and White Magic were said to have originated. Both Black and White Magic are deemed corruptions of true Astrology by the Hai-Xsian, fit to be practiced only by the mongrels of Maho-Kuni.
All Oracles are mandated to use their powers in service of the Imperial Court, and the only school that teaches the secrets of Astrology is hidden away within the Imperial City.