Ōoku: The Inner Chambers

Ōoku: The Inner Chambers (大奥, Ōoku) is a Japanese manga series written and illustrated by Fumi Yoshinaga. It was serialized in Hakusensha's manga magazine Melody from June 2004 to December 2020, with its chapters collected in 19 tankōbon volumes. The manga is licensed in North America by Viz Media. Ōoku: The Inner Chambers follows an alternate history of early modern Japan in which an unknown disease kills most of the male population, leading to a matriarchal society in which the Ōoku becomes a harem of men serving the now female Shogun.

It was adapted into two live-action films in 2010 and 2012 and a 10-episode Japanese television drama series in 2012. Another television drama series premiered in January 2023. An original net animation (ONA) series adaption by Studio Deen premiered in June 2023 on Netflix.

By December 2020, the manga had over 6 million copies in circulation. Ōoku: The Inner Chambers won an Excellence Prize at the 10th Japan Media Arts Festival, a special prize at The Japanese Association of Feminist Science Fiction and Fantasy's fifth annual Sense of Gender Awards in 2005, and the Grand Prize of the 13th Tezuka Osamu Cultural Prize in 2009.