In response to the underwear theft incident, trust within class D erodes and the girls of class D decide to separate the boys and girls camps. Ibuki approaches Kiyotaka asking his opinion about who the thief is and he trusts her while telling her that Sudo suspects her. That night, Horikita and Kiyotaka sit by a campfire, and Kiyotaka notices that Horikita has been sick during the entire test...