Established for supervision of Kofuku-ji Temple, Todai-ji Temple and other large temples in Nara, and rule over their temple towns (Nara-machi/Nara Kita-machi).
興福寺・東大寺など奈良の大寺院の監視とその門前町（ならまち・奈良きたまち）の支配のため設置。