Sekiguchi reads a section of his own work titled "Vertigo" and imagines himself as the story's protagonist. In it, he pursues a woman through a large, empty house. In the main storyline, a flashback to 1880 recounts scholars testing Ikuko Nagao and Chizuko Mifune for clairvoyance. In 1911, they test Ikuko for psychic photography. One of the scholars reports to the press that clairvoyance is fake. Back in the present, Masuoka hires Reijirō Enokizu to find Kanako. Masuoka explains that Hiroya Shibata, the only heir to the fortune of Yōkō Shibata, eloped with Yōko Yuzuki before she became an actress. She later gave birth to Kanako. Yōkō agreed to fund all expenses for raising Kanako under the condition that Kanako must never know her true parentage. Amemiya was appointed to monitor that condition. After Hiroya died during the war, Kanako became Yōkō's heir, and Yōkō recently died. Sekiguchi introduces Toriguchi to Akihiko Chūzenji.