Active Interest.The three kidnappers kidnap a foreign man named Kazutano. They attempt to drug Kazutano, but Kazutano knocks the bottle over, spilling it and making them all drowsy. Kazutano manages to convince the leader to dump the now-asleep supporter, who has Kazutano's phone, out of the van by the roadside. Kyohei Kadota, Walker Yumasaki, Erika Karisawa, and Saburo Togusa (Masaomi's friends) learn that Kazutano, a friend of theirs, was kidnapped. Elsewhere, Namie Yagiri, the chief of pharmaceutical company Yagiri Pharmaceuticals and Seiji's older sister, tells her assistant that their supply of (human) materials must be increased. Kyohei calls Kazutano's phone, and Izaya, who happens to pass by the unconscious supporter, answers them and tells them where the supporter is. Kyohei, Walker, Erika, and Saburo find the supporter, and find the exchange point by calling the driver using the unconscious supporter's phone and a fake voice. The four retrieve Kaztano and capture the driver of the kidnappers, who reveals that they bring the people they abduct to Yagiri Pharmaceuticals, who is experimenting on humans.