Yes, if they had been fighting for their clan, perhaps they would still have retained some reason. But when they did not even know what they were supposed to fight for, the only thing keeping them going was madness.
Of course, that was beside the point. From that letter, Mirai Uchiha had more or less understood one thing: Juzo Biwa had never betrayed Konoha. He was a planted agent Konoha had inserted into Kirigakure. And from here on, that agent would serve an even greater purpose.
The Juzo Biwa Mirai knew would later betray Kirigakure and join Akatsuki, carrying out missions as Itachi's first partner. The reason the Kubikiribōchō he wielded had ended up back in Kirigakure was also very simple. He had once entered Kirigakure with Itachi on a mission, only to be discovered by the Fourth Mizukage, Yagura. A fierce battle broke out between them. In the end, Juzo Biwa was killed, and the Kubikiribōchō fell back into Kirigakure's hands.
All in all, he was a tragic figure. But from this, Mirai could also see that Konoha was not fundamentally any different from the other villages.
This time, in order to obtain the information, they had laid out an enormous scheme.
On the surface, it was a mission to eliminate rogue ninja. In truth, it was to obtain the secret letter while ensuring that Juzo Biwa would not be suspected of being a traitor.
The mission itself had been full of suspicious points. Though it looked as if Minato had initiated it, and there had happened to be enough manpower gathered nearby at the time, there was no reason for more than six squads to appear in the same area just because a few bandits had been spotted around Nara Mountain. That alone was highly suspicious.
Then, during