This "tanpatsu" (single episode) TV Special celebrates the tenth year of the popular Japanese anime, Detective Conan (1996), originally a manga created by Gosho Aoyama.
"Cameo" appearances were made by who would be Conan Edogawa's friends, Ayumi Yoshida, Genta Kojima, and Mitsuhiko Tsburuya. Their voices, however, were overdubbed by their anime voice actors Yukiko Iwai, Wataru Takagi, and Ikue Otani, respectively.