Masamoto then assisted his force to the Hatakeyama, ultimately defeating those of Masanaga and Yoshitane.
The same year, Masamoto led a campaign against his opponents of Yamashiro Province.
Masamoto who was childless (many who thought was a homosexual) then adopted Sumiyuki and Sumimoto as his sons.
In 1504, Masamoto eliminated Yakushiji Motoichi who was a follower of Sumimoto (whom he did not want as successor).
In 1506, Masamoto was threatened by an army led by Miyoshi Yukinaga, another supporter of Sumimoto.