In the political turmoil after the assassination of Shogun Yoshinori ASHIKAGA in the Kakitsu War, the farming population lead by bashaku (shipping agents who used horses) in Omi Sakamoto in Kyoto rose up in rebellion to demand 'daihajime-no-tokusei (acts of virtuous government requested at shogun replacement)' (Tenkaichido no Tokuseirei (a debt cancellation order for all throughout the country)), which was directed by jizamurai (local samurai) and lead to an uprising by tens of thousands of people.
六月の嘉吉の乱で将軍足利義教が殺されると政治的混乱の中「代初めの徳政」を求めて（天下一同の徳政令）京都近江坂本の馬借を中心に農民が蜂起、地侍が指導し、数万人の一揆にふくれあがった。