The conflict continued even after the premeditated murder of KO no Moronao and his brother KO no Moroyasu by the Tadayoshi faction, and in 1351, Tadayoshi fled from Kyoto with busho (Japanese military commander) who belonged to his faction, including Tadatsune MOMONOI, Takatsune SHIBA and Tokiuji YAMANA, and reached Kamakura City via Hokuriku Region and Shinano Province.
直義派による高師直・高師泰兄弟の謀殺後も対立は止まらず、1351年（正平6年/観応2年）直義は桃井直常・斯波高経・山名時氏をはじめ自派の武将を伴って京都を脱出し、北陸地方・信濃国を経て鎌倉市へ至る。