Elly Ishioka is a 25-year-old customer service personnel for the SCMaglev train system, operating at 1,000 km/h between Shibahama and Shin-Nagoya Stations. Her position proves critical during Tokyo’s World Sports Games, where she handles passenger assistance and public communications for the maglev service. Ishioka displays an enthusiastic, passionate demeanor, frequently self-styling as the maglev line’s "idol." Her personality features intentional cuteness and exaggerated reactions, sometimes prompting wry amusement from Conan Edogawa and others. This zeal contrasts with her carelessness, exemplified when she inadvertently revealed confidential details of a surprise WSG opening ceremony performance.
Amid the film’s central incident—a kidnapping spree and vaporized helium attack at Nagoya Airport’s hospital—Ishioka emerges as one of three suspects alongside Maiko Shirahato and Osamu Inoue. Suspicion falls on her due to her proximity to compromised MRI equipment and her presence during the crisis. Her narrative role hinges entirely on her occupation, leveraging access to vital transportation infrastructure.