Nagayoshi, who entered Kaizu-jo Castle, conquered neighboring warlords and fought off the attack of Kagekatsu UESUGI, while at the same time mounting an offensive against the Uesugi clan.
海津城に入った長可は近隣諸将を鎮撫し、上杉景勝の侵入を防ぎつつ、一方では上杉氏への攻勢を強めていた。