Shogun's Harem: The Mansion of Evil Spirits

In the era of the ninth shogun, Ieshige, the Ooku of Edo Castle was a world of only women, with Tokiwa at the head and numbering up to a thousand. The town girl Otoshi catches the eye of Oitsu-no-kata and is brought into the Ooku. Oitsu receives the favor of Ieshige and is blessed with an heir, but Oko-no-kata resent