After dealing with Juzo Biwa and Jinin Akebino, Shizune had intended to collect the blades of the Seven Ninja Swordsmen of the Mist. She could tell that most of their strength came from those seven uniquely shaped weapons. With those blades, Konoha could gain seven powerful ninja of its own. That would be a major achievement, and Shizune had no intention of passing it up.
Yet before Shizune could collect them, all seven blades vanished from the area. Kirigakure had placed Seals on them. Once a blade's wielder died, its Seal would activate, using a spatial Seal to return the weapon to an Altar in Kirigakure.
Likewise, if any of the Seven Ninja Swordsmen of the Mist betrayed the village, Kirigakure could activate the formation itself and teleport the blade back. The reason Zabuza, Kisame, and the others had kept their blades after defecting later on was that they had first broken the Seals. Only then could they retain their weapons indefinitely.
Shizune did not understand what had happened. Having lost her chance to obtain the seven blades, she could only cut off Juzo Biwa's head. It was a major military achievement, and he was even listed at the Bounty Office, so she certainly would not let it go to waste. She also cut off Suikazan Fuguki's head, though he had not yet died.
Watching Shizune work with practiced ease and Might Guy lying on the ground with drool leaking from the corner of his mouth, Kosuke's eyes filled with satisfaction. For an old man like him, who sought neither fame nor fortune, his greatest hope was to see more and more powerful ninja emerge from his village.
The Seven Ninja Swordsmen of the Mist had not been particularly famous before, but during Kirigakure's war against Konoha's Uchiha Clan and