shugo was not hereditary but a shift system , so shogosho was generally moved according to the change of shugo . また、守護は世襲ではなく交替制であったため、守護の交代とともに守護所も替わるのが一般的であった。
the officials were appointed by hanpo at shikibusho , worked on a shift system , and did not have a corresponding court rank . 式部省の判補によって採用されて交代で勤務する分番を採っており、官位相当はない。
the duty was part of a shift system with a term of one year each , ending every year in february at the rekken ceremony (an annual ritual during the heian and nara periods in which officers were evaluated for promotions ). 毎年2月に太政官が行う列見の儀式までの1年間ずつの交替制であった。
