Chikashige was so trusted by the Mori clan that when Motonari sent a letter to the Mimura family, he told messengers to show it not only to the head of the family Iechika but also to Chikashige.
毛利氏家の信任が厚く、元就が三村家宛の文書を当主・家親のみならず親成にも見せるように使者に言い含めていたほどである。