Mitsuki worries when Mikazuki the cat goes missing. Mitsuki, Boruto, and Sarada are assisting with the village patrol at the request of the police department, which is having difficulty investigating a strange series of attacks. From morning until night, Mitsuki spends his days on patrol, when one day, he sees Mikazuki being cared for by another person and being called by another name!

Kawaki and Himawari participate in a training session in the forest near the academy. The class is split into three-person teams and Kawaki ends up on a different team from Kae. Anxious about losing sight of Kae, Kawaki is unable to focus and ends up burdening his assigned team. Kae is lured away by a mysterious person and disappears. Fearing that she is in danger, Kawaki and Himawari rush to find her.

While everyone is exhausted from Ouga’s experiments, a test subject talks about their goals, which leads everyone to talk about what they want to do if they survive. The mood is lightened, but Ouga begins a new experiment. Due to the careless actions of certain test subjects, everyone's lives are in danger once again.