When Nozomu Itoshiki tries take photograph of his nephew and Kafuka Fūra in the public swimming pool, he is accused of being a spy by another woman. Nozomu blames the society, where everyone, including those who do not have any malicious intent, is suspected of being spy. Suddenly, Kafuka gives him a secret mission and Nozomu has to escapes from the greater suspicion by finding a good place to isolate himself. At the end, Kafuka devises a plan of 'positive counter intelligence' to help him out by leaking unreliable rumors such as urban legends to confuse everyone in the society. In the second part of the episode, Nozomu claims that pretentious side of everyone is ultimately exposed in May. At the end, many of Nozomu's students' hidden secrets are exposed, though some of them are merely his imagination. In the third part of the episode, many things in the world are not divided exactly half and half despite their claim. To correct such mistakes in the world, Chiri Kitsu enforce the ratio of everything into exactly 50/50 ratio, which produces various results at the end.