After their battle with Sasuke, the Five Kage stayed temporarily in the Land of Iron under Mifune's arrangements.
During that time, the Kazekage and Raikage woke one after the other, and their guards explained what had happened while they were unconscious. Once the Hokage woke, the next round of the Five Kage Summit could begin.
Time slipped by, and the night of the seventh day arrived.
Tsunade woke to find Shizune attending her bedside. She had been summoned urgently; after all, Shikaku and Inoichi were both men, making them unsuitable for bedside care.
"Shizune, weren't you looking after Sakura?"
Ever since Sasuke had placed Sakura under a genjutsu in Konoha's cemetery, she had been in a deep coma, with no sign of waking even now. Even Tsunade's Medical Ninjutsu was powerless against that genjutsu.
Shizune said, "Mr. Inoichi's daughter, Ino, is looking after Sakura. Lady Tsunade, Mr. Shikaku told me everything. That masked boy in white who attacked the Five Kage Summit was Sasuke Uchiha, wasn't he?"
With that single remark, Shizune brought Tsunade's fragmented thoughts back into touch with reality.
"Where's Sasuke? And what happened to the Five Kage?"
Whoosh!
The sliding door opened, and Shikaku leaned against the doorway. "Don't worry, Lady Tsunade. Sasuke has already left, and all five Kage are safe."
Tsunade breathed a sigh of relief, then said sternly, "Tell me what happened after I lost consciousness!"
Shikaku gave her an accurate account.
Tsunade said, "What? He said he'd start another war in three years, and that he'd bring the Five Great Nations under his control? Were those really his exact words?"
Shikaku said, "Yes. The Kage are all jumpy as frightened birds now. Tomorrow's round of the Five Kage Summit will be held to discuss that very matter!"
"Ugh...!"
Tsunade pressed a hand to