 While investigating a secret hospital ward being overseen by Kamishiro, Aiba discovers their own physical body is in the ward, revealing that they are also a victim of EDEN Syndrome, before being confronted by a mysterious girl who admits to knowing one of the other EDEN Syndrome victims, and narrowly avoids getting caught by Rie Kishibe, the current president of Kamishiro Enterprises.The mysterious girl whom Aiba encountered in the hospital approaches Kyoko and Aiba and reveals her identity as Yuuko Kamishiro, the daughter of Kamishiro Industries' former president, and requests they investigate her father's purported suicide.With the assistance of Goro Mayatoshi, a detective in the Tokyo Police Department and an old friend of Kyoko's father, Kyoko and Aiba gather evidence regarding illegal activity within Kamishiro, but Kyoko's plans of exposing the company are thwarted when Kishibe holds a sudden press conference, admitting to the activity and announcing that all parties involved in the illegal actions have been terminated as scapegoats, which causes Mayatoshi's superiors to call off the accusations.