Arc 5The Anbu Commander
Ueno Kei became the Third Hokage’s chosen Anbu successor and led a border mission that uncovered Orochimaru’s plot and cost Konoha four lives. Back in Konoha, Kei learned of a possible path to Sage Transformation and sensed Naruto and Jiraiya near the village on the eve of the Chunin Exams’ final stage.
- Ueno Kei intervened when Hyuga Neji nearly killed Hinata, then met Jiraiya and urged him to become the Fifth Hokage.
- The Third Hokage appointed Ueno Kei Anbu Commander and sent him to investigate Sunagakure’s movements and suspected ties to Orochimaru.
- Kei found what appeared to be the Kazekage’s corpse and led his Anbu toward a contact point, where Otogakure forces ambushed them.
- Kei and Lightning fought Guren, Suigetsu, and Jugo, and Kei used the Myriad Thunder Prison Pull formation to disable the Sound shinobi.
- Kaguya Kimimaro held Kei back while Guren and Suigetsu escaped with Jugo, and Kei returned to Konoha after four Anbu died.
- The Third Hokage learned that the supposed Kazekage corpse belonged to an ordinary person, while the real Rasa had already arrived in Konoha.
- The Lizard Clan’s Great Elder explained how Kei might use the Lingyu Blade to absorb natural energy and pursue Sage Transformation.
- While inspecting Konoha’s barriers before the final exam stage, Kei sensed a powerful chakra presence and learned Naruto and Jiraiya were ahead.