After biding their time for 20 years, the remnants of the Taira clan led by Goro WAKANA of Ise Heishi took advantage of the turmoil in the government, which was caused by the shogun's successor issue, and attacked the house of Tsunetoshi YAMANOUCHI SUDO serving as the shugo of Ise Province to raise a rebellion again in January 1204.
平家残党は20年の雌伏を経て、将軍後継問題で揺れる幕府の動揺に乗じて建仁3年（1203年）12月、伊勢平氏若菜五郎が軍勢を率いて伊勢国の守護である山内首藤経俊の舘を襲撃し、再び反乱の兵を挙げた。