Even if Kirigakure was plagued by severe internal strife, you couldn't just kill its Fourth Mizukage, Karatachi Yagura, on a whim.
Surely you understood what a village's Kage represented?
Tsunade looked at Naraku, speechless. She truly had nothing to say about his actions.
"For now, just stay put in the village. Even with its strength greatly diminished, Kirigakure won't simply let the Mizukage's death in battle slide."
"Just wait for their protests..."
Shihōin Naraku curled his lip. Where would Kirigakure find the courage to protest against him? He didn't believe anyone who had experienced that battle would dare cause trouble again.
"Anything else?" Tsunade asked irritably. "If not, go back and rest. There aren't any missions for you at the moment."
"Oh, there's something else, though I don't know whether it counts as good news or bad news..."
Naraku glanced at Sakura Haruno, who was trying hard to make herself inconspicuous. Kakashi Hatake immediately caught on. The two of them really ought to leave.
In fact, when Naraku had been reporting on his mission earlier, Kakashi had been about to take Sakura and leave. Who knew Naraku would speak so quickly? Before the two could excuse themselves, he had revealed the news that the Fourth Mizukage had died in battle.
"Then we'll take our leave, Lord Hokage. Please look after Sakura's matter."
Kakashi Hatake and Sakura Haruno bowed to Tsunade together, but Naraku stopped Kakashi. "You can go out first, young lady. Kakashi, you stay. This next piece of news has a great deal to do with you."
Kakashi froze. What could have happened in Kirigakure that had anything to do with him?
But since Naraku had said so, Kakashi could only signal for Sakura Haruno to leave first. Sakura bowed to the three of them again, then quickly left.