Chikashige, feeling his safety in danger, gave the information to the Mori clan and supported it to destroy the Mimura family including Motochika (the Disturbance of Bicchu in 1575).
身の危険を感じた親成は、毛利氏に通じ、元親を初めとする三村家討伐に協力した（備中兵乱1575年）。