Minami-no-kizahashi (The south stair) of the Palace and the Chumonrou had been used as exit for the ex-Emperor, where Minarai-no-kizahashi had been used for formal outing while the Chyumonrou for informal one. As entrance Minami-no-kizahashi and the Chumonrou were also used where Minami-no-kizahashi was used for the host while the Chumonrou for visitors. It is from the last stage of the Heian era the Chumonrou had been used as exit.
