Koukyuu no Karasu

Deep within the palace lives a mysterious woman known only as the Raven Consort. Some say she's an old woman, others that she's young and beautiful. But all are agreed on this: her dark arts have the power to exorcise spirits, lay fatal curses, and find what has been lost—for a price. When the young emperor, Koushou, seeks out the Raven Consort to make use of that magic, what follows will overturn the court...and perhaps even the country.

(Source: Seven Seas Entertainment)