After the establishment of Taiho Ritsuryo (Taiho Code), female emperors were enthroned successively and empresses were not appointed, thus Chugushiki did not work in fact.
大宝律令制定後、女性天皇の即位が相次ぎ、皇后が立てられることがなかったので、中宮職は実際には機能しない状態が続いた。