Empowered Muramune accepted the request from Takakuni HOSOKAWA, who was ousted from the capital due to the conflict with Harumoto HOSOKAWA, and became involved in the succession dispute of the Hosokawa clan by forming the military force to go to the capital after temporary reconciling with the Lord Masamura.
力をつけた村宗は、細川晴元と対立し京を追われた管領細川高国の依頼を受け、主君政村と一時和睦した上で上洛の軍を起こし、細川氏の家督争いへ介入するようになる。