The bakufu expanded its power to the western provinces after the Jokyu War, and gokenin (immediate vassals of the shogunate in the Kamakura and Muromachi through Edo periods) and court nobles who were sent as jito (manager and lord of manor) had more legal troubles with lords of private estates and the local public.
承久の乱以後、幕府の勢力が西国にまで伸びていくと、地頭として派遣された御家人・公家などの荘園領主・現地住民との法的な揉め事が増加するようになった。