Since he brought Chikafusa KITABATAKE over to the Oda-jo Castle, he was attacked by KO no Morofuyu who was given the orders from Takauji, and he had no choice but to surrender to the Northern Courts.
その後、北畠親房を小田城に迎えたため、尊氏の命を受けた高師冬の攻撃を受け、北朝に降伏することを余儀なくされた。