Between the Minamidamari entrance hall and the Seiden, there is a 70 m-long corridor, through which state guests and so on go from the Minamidamari to the Seiden.
南溜と正殿の間には長さ70メートルほどの回廊があり、国賓等は南溜から回廊を経て正殿に向かう。