Conan Edogawa appears in the OVA "Magic File 4: The Osaka Okonomiyaki Odyssey" as the central character. After the airship hijacking incident, he visits Osaka and stays overnight at Heiji Hattori's residence. The next day, Heiji and Kazuha Toyama take him to a local okonomiyaki restaurant, fulfilling Heiji's promise to treat him to Osaka's specialty before his return to Tokyo. Their journey faces multiple delays, including encounters with talkative neighbors and high school students challenging Heiji's deduction skills. Conan demonstrates his analytical abilities when he and Heiji encounter a woman who leaves an infant named Kaoru in their care. After Kazuha discovers the baby, dressed in female clothing, is actually male, Conan deduces the child was likely kidnapped. The returning woman confirms this, explaining her husband, Hikaru, disappeared believing Kaoru was not his biological son. Recognizing the names "Hikaru" and "Kaoru" as references to characters from "The Tale of Genji," Conan and Heiji clarify the misunderstanding and resolve the situation. Despite resolving the case, Conan's plan to eat Osaka's okonomiyaki is interrupted. He receives a phone call from Ran Mori informing him they must depart for Tokyo thirty minutes earlier than planned due to Sonoko Suzuki's scheduling error, forcing him to leave without eating.