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.

Boruto manages to perfect his Rasengan and begins training under Sasuke. He’s an extremely strict teacher because Boruto’s unfocused and only thinks about surpassing his father, and keeps looking for the easy way out when training gets tough. Iwabe, Sumire and the others also decide to take the Chunin Exam and turn in their applications. Hoping to show off his skills to Naruto, Boruto decides to apply as well. Meanwhile, the Otsutsuki Clan set their sights on Killer Bee!

Sasuke is attacked by Meno, the guardian of the Observatory, and then poisoned. Just when he thinks it’s all over, he is rescued by Sakura, who has infiltrated the Observatory as a doctor. She gets Sasuke reassigned to assist her, and they begin their undercover investigation. From the intel that Sakura brings, they learn that Ultra Particles were what cured the Sage of the Six Paths, but in order to find out where it is located, they need to obtain a document called the Map of the Heavens. They decide to search the Observatory’s library for it.