The Southern Court (Japan) rose up in arms against the Muromachi bakufu (Japanese feudal government headed by a shogun), which had been thrown into confusion after Kanno Disturbance and Shohei no itto (temporal unification of the Northern and Southern Courts) in 1352.
正平(日本)7年（1352年）観応の擾乱と正平の一統で混乱する室町幕府に対し、南朝(日本)が一斉に蜂起した。