Edo Period

(historical) The inner chamber (inner quarters) of the Edo Castle where the shōgun's consort, concubines, and ladies in waiting resided. Other than the shōgun, no other men were permitted entrance. Male children were raised in Ooku until the age of 7 at which time they had to move out and reside in other parts of the castle.

concubine

to live in, to inhabit, to abide at, to dwell at

place, location / site (location designated for some purpose) / space, room / a seat / (sumo) tournament

(military) a commander of troops, especially of an expeditionary or frontline force / (military) Synonym of 将官 (shōkan): a general officer

(historical) Edo, the former name of Tokyo before 1868 / a surname

(humble, only refers to one's own) a wife (married woman)

age, era, period (of time) / the times, spirit of the age / antiquity / a time in one's life, one's days (in college etc.)

spouse