On the rooftop of Yankii Academy, Kuro and Hibi clashed with Yamada. However, Hibi was easily defeated, and Kuro is forced to step in. Both rivals bring out their swords, and an instantaneous battle is about to begin. Meanwhile, at Kodan High School, Onikobe and her friends chase down Saruta as he escapes to the roof, but an unexpected UN intruder appears in the attacking satellite TON, which was waiting in the sky above them. Noguchi and his team try to escape from Kodan High School and reach a huge underground space, where they are told by Suzuki about the past relationship between NIN and the UN.