At the Onin War in 1467, he joined the East squad of the Hosokawa clan and moved his troops to Kyoto, where he took part in the battle around the Shokoku-ji Temple.
1467年（応仁元年）の応仁の乱に際しては、東軍の細川方に加わって京都へと出兵し、相国寺周辺での戦闘にも参加した。