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…

Momoshiki, Kinshiki and Urashiki of the Otsutsuki Clan suddenly appear in the arena filled with spectators. Using his Scientific Ninja Tool, Boruto hurls jutsu after jutsu to no avail against Momoshiki, who is targeting Naruto. Meanwhile, Urashiki is curious about Mitsuki's strange power and goes after him, but he is confronted by Gaara along with the Mizukage Chojuro. Naruto and the other ninja do all they can to protect the citizens, and for the first time, Boruto witnesses the magnitude of his father's power in real combat.

Naruto and Sasuke fight against Momoshiki Otsutsuki. Momoshiki gets defeated, but he's helped by Katasuke and his Scientific Ninja Tool. In the end, Boruto puts an end to Momoshiki's life. While dying, Momoshiki talks to Boruto and gives him the Karma Seal.