Kawaki & Himawari Academy Arc

The twenty-third arc of the Boruto: Naruto Next Generations anime, this storyline runs from episode 261 to 273. It comes after the Great Sea Battle of Kirigakure Arc and gives way to the Labyrinth Game Arc. New pupils join the Academy, but two of them are there under false pretences, turning an ordinary school setting into cover for a protection mission and an assassination plot.

Among the fresh intake are Himawari and Kawaki, though Kawaki has no interest in becoming a ninja. His true assignment is to watch over Kae Yukiwari, heir to the throne of the Land of Bamboo, who was sent to Konoha for safety amid a power struggle she knows nothing about. A new instructor named Hana appears to be an ordinary teacher, but she is in fact a sleeper agent planted in the village a decade earlier and now ordered to kill Kae. Kawaki befriends the princess and joins forces with Himawari to expose the would-be killer.

Hana makes repeated attempts on Kae's life, each foiled just in time. She tries striking while undercover, then works to get Kawaki expelled with an anonymous letter, then targets Kae in the infirmary, and later plants paper bombs to scatter everyone before pursuing her. Kawaki thwarts every move.

For her final scheme, Hana lures the children to an island and slips away with Kae under the guise of a school outing. Kawaki uncovers her identity and intercepts her before she can act, and Hana is taken into custody alongside her accomplices by the military police, bringing the plot against the princess to an end.