Boruto is appointed class leader for his homeroom's class field trip to the Land of Water, much to his annoyance. Upon arriving in Kirigakure, they are met by their village guide Kagura Karatachi. Upon personally introducing himself to Boruto, Kagura escorted the class into the village, where the class is amazed by the scenery. Boruto noticed Iwabee wandering off into a back alley, leading to Boruto and Denki pursuing him. There, the three are confronted by Hassaku Onomichi, who Boruto engages into a fight with. The skirmish is stopped by Shizuma Hoshigaki, who applauded Boruto and Iwabee for having guts before walking off with Hassaku. Later, the class met Mei Terumī and Chōjūrō, who welcomed them to their village. Afterwards, the class continued their tour to the Kirigakure Academy, where Chōjūrō organised Boruto to fight Kagura in kenjutsu. Upon starting, Boruto is swiftly disarmed and defeated. Shortly after, Kagura took the class to Memorial Park, where they payed their respects at the Memorial Stone.
Afterwards, Kagura talks to Boruto and his classmates about the history of the "Bloody Mist Village" and the Fourth Mizukage, before Tsurushi Hachiya's group approaches them. Realising Boruto is the Hokage's son, Tsurushi attempts to attack Boruto, but Kagura and Iwabee fended him off, leading to him retreating with his friends. During the night, Boruto's classmates receive a message that Denki had been kidnapped, and tells them to come to Pier Number 4 if they want him back. Arriving at the pier with a few of his classmates and Kagura, Tsurushi reveals himself as the culprit, as erects a barrier around them all before having his group attack the students. After defeating the Kiri shinobi and returning to their hotel, Boruto invites Kagura to play a card game with him and his friends. While Kagura enjoys the game, he continues to lament about his past. Boruto however insists that he can't let his family ties define him, as Boruto could relate to being compared to father and grandfather. As a sign of friendship, Boruto decides to give Kagura his playing cards.
The next day, Kagura calls Boruto to meet him at the Academy, where he finds Kagura training with Hiramekarei and says the village will be in good hands. Their conversation is interrupted when Shizuma captures the pair with water, who insists now is the time to start a revolution in Kiri. Rejecting Shizuma's words, Boruto unsuccessfully attacks him, leading to Shizuma has his peers reveal themselves and overwhelm Boruto. In his weakened state, Shizuma attempts to persuade Kagura to kill Boruto, but Kagura protects him at the cost of joining the group. Failing to stop him going, passes out. Later, Boruto awakens to Sarada beside him, who found him and applied first aid. Hachiya approaches the two and reveals Shizuma's intentions and how Kagura was in debt to him, leading to Boruto becoming determined to save Kagura. After Mei and Chōjūrō become aware that the New Seven Ninja Swordsmen stole the village's Seven Ninja swords, Boruto and Sarada approach Mei and Chōjūrō, and explain that Kagura actions are due to Shizuma exploiting his weakness. Boruto insists that to treat the recent incident as a children's fight, leading to Chōjūrō allowing the two students accompanying him in stopping the swordsmen.
Boruto fighting Shizuma.
As the swordsmen attempted to destroy Kiri's Memorial Stone, Boruto stopped them, leading to Shizuma erecting a mist barrier around the surrounding area and separating the three. Boruto then found himself fighting against Kagura, desperate trying to reason with him. As Boruto continued to point out Kagura's reluctance to join this rebellion during their clash, Mitsuki arrived, revealing proof of Shizuma' lies. He revealed that Shizuma and his followers not only conspired with the Land of Waves, but also killing various people in Kirigakure who learned of his plans and refused to help him. When Shizuma took the allegations in stride, proud of his actions, he decided to finish the battle personally when Kagura refused to fight. He unleashed a blood mist that enabled him to absorb enemy's chakra through their open wounds. Boruto and Mitsuki's coordinated tag-team enabled them to over-power the foe. Refusing to accept defeat, Shizuma reclaimed Samehada, backfiring on him as his inexperience allowed Samehada to overwhelm him into a feral state. When Kagura wanted to make things right but was too exhausted, Boruto joined him, taking up half of Hiramekarei and together were able to defeat their foe. The Konoha-nin then quickly ran back to their hotel to make curfew.
Some after the incident, the class depart Kiri by boat, leading to Boruto wondering why Kagura didn't see them off. Upon returning to Konoha, Hinata reminds Boruto that he hadn't brought back a souvenir for Himawari as he promised. Unable to bring himself to tell his sister, Boruto lies and says he misplaced her souvenir of Kirigakure Water Cinnamon Sweets, which he begins looking to get in the village. Upon retrieving them, he received a letter from Kagura which explained his situation. Taking from Kagura's boldness at confronting his mistakes, Boruto decided to both give his gift and admit his mistake to Himawari, which she accepted.