Born as the third son of Ieyuki KODAMA, the third family head of the Kodama Clan, the head family of the Kodama party, Chikaie was given the demesne of Tomita in Wakaizumi-sho, Kodama-gun (today's Tomida, Honjo city) and relocated to Horinouchi, Nishi-tomida.
児玉党の本宗家3代目である児玉家行の三男として生まれ、父家行より児玉郡大寄郷若泉庄の富田（現在の本庄市大字富田）の領地を与えられ、西富田堀の内に移住。