Sarada agrees to return a teddy bear to a young patient at the hospital, but she forgets it on the train and goes into a panic. Despite having dismissed Boruto and the boys for sitting on the roof of the train, Sarada does exactly that in her desperate search for the toy. Cho-Cho happens to see Sarada and takes her to the station’s lost and found. Sarada retrieves her package and all is well, until…

Boruto and his classmates are invited to tour the Hidden Mist Academy under Kagura and Chojuro's escort. The Hidden Mist emphasizes swordsmanship, and Boruto is awed by their intense training sessions. Chojuro sees Boruto's interest and arranges a sparring match with Kagura, who seems hesitant. Kagura is extremely skilled and has been asked by Chojuro to become the successor to his Great Twin Sword, Hiramekarei, but he has declined.

Kagura unlocks the storeroom to let Shizuma take the Mist Blades. The New Seven Ninja Swordsmen begin an insurrection, the end goal being to turn their village back into the Blood Mist Village! News of the rebellion reaches Chojuro and Mei, the current and previous Mizukage. They are determined to execute the perpetrators, along with Kagura, who aided them. In order to change Chojuro's mind, Boruto makes an astonishing announcement.

Boruto urges his friend Kagura to return with him, but Kagura rejects him and begins to attack. Although Boruto is desperate to save him, Kagura once again falls under a spell and is unable to defy Shizuma. Then someone steps in between the two as they battle. It's Mitsuki, and he has obtained intel about the rebellion. Just what is the intel, and can Boruto save his friend?

Originally from the Village Hidden in the Sound, Mitsuki has made up his mind to become a Hidden Leaf Shinobi. In the past, having lost his memory, Mitsuki finds himself in unfamiliar surroundings, unsure of his identity and motive. Mitsuki faces a difficult decision, but his thoughts and feelings that had once been shrouded in mystery, now come to light

The Chunin Exams are about to begin and genin from the other villages arrive in droves. The Hidden Sand's hopefuls include the Kazekage's adopted son Shinki, and his team mates Yodo and Araya. The Hidden Mists send the Senka triplets, the Hidden Cloud sends Yurui, Iroi, and Tarui. And finally, the Hidden Rock send the Genbu Three. As formidable rivals arrive on the scene, tensions run high as every participant sizes each other up, and prepare for the first round of the Chunin Exams!