During the Bunmei era, they replaced Sadachika ISE, and Norimune was placed in charge of stratagem which made Takakage ASAKURA (seventh head of the Asakura family) go over to the Eastern army from the Western army, resulting in Norimune's success.
また、文明(日本)年間に入ると、伊勢貞親に代わって、則宗が西軍に属していた朝倉孝景(7代当主)の調略工作を担うようになり、文明3年、孝景の寝返りを成功させた。