Under the ritsuryo system it was a name of a soldier posted in the gundan or a person from gundan in various districts who was posted in rotation in the emonfu (officials section) or the ejifu (guards section) and acted as guards in the Imperial Court.
律令制下で、軍団に配置された兵士の称ないし諸国の軍団から交代で衛門府ないし衛士府に配属され、宮中の護衛を担った者の称。