The Bicchu Province was originally strongly affected by the other dominant Shugo families, such as the Keicho family and the Awa Shugo family, and the control of kokujin, including the Sho clan, was in utmost difficulty.
備中国はもともと京兆家や阿波守護家など、他の有力守護家の影響が強く及んでおり、庄氏を初めとする国人統制も困難を極めた。