Official Twitter account of Orange Bunko Shueisha, novels publisher, announced ‘A Raven in the Harem’ (Kokyu No Karasu) will have anime adaptation. Original novel was written by Koko Shirakawa.

The story revolves around Uki, a royal concubine who has never been called into the emperor’s palace, and maintains a special life in the harem. Some people see the appearance of an old woman, and others see a young woman. She knows how to use mysterious magic to help solve everything from finding lost items to curses. When unexpected situation happened, the emperor summons her, this encounter will change history.

With illustration by Ayuko, the novel was published since April 2018 and according to producer, the novel was printed to 900,000 copies as of today.