Hideyoshi, who had an eye on that situation, spread a rumor to the members of the Aｚai clan that Kazumasa was a betrayer, and succeeded in making Nagamasa and others having suspicion against Kazumasa.
そこに目をつけた秀吉が浅井家家中に員昌内通の風説を流し、長政らに員昌に対する疑念をもたせることに成功した。