ODA troops made inroads well, but when they were on the march around Kanegasaki, Nagamasa AZAI of northern Omi, who was on ODA's side, suddenly attacked them from behind.
順調に侵攻を進めていくが、金ヶ崎付近を進軍中に突然盟友であった北近江の浅井長政が裏切り織田軍を背後から急襲。