He withdrew Nagayoshi and Nobumasa who had envelopped Hitokurojo Castle; attacked Nobumasa's Haradajo Castle and advanced on Kyoto; and schemed to back up Shogun Yoshiharu, but the essential Yoshiharu escaped to Sakamoto in Omi Province, which caused Nagamasa to become a rebel against the bakufu.
一庫城を包囲していた長慶と信正を敗走させ、信正の原田城を攻撃、さらに京へ進軍して、将軍義晴を擁立しようと画策するが、肝心の義晴には近江坂本へ逃れられてしまい、長政は幕府に背いた逆賊となってしまう。