The Shogunate's revenue from the shoen (manor in medieval Japan) and koryo (an imperial demesne) decreased because of rampancy of akuto (a villain in the medieval times) and pirates who did not obey the control of the government and honjo (proprietor or guarantor of a manor)
また幕府や本所の支配に従わない悪党や海賊などの横行によって荘園・公領からの収入も滞った。