Edogawa Conan Shissō Jiken - Shijō Saiaku no Futsukakan (The Worst Two Days in History)*. However, these materials do not detail his specific role, actions, background story, or character development within this particular special. The plot descriptions focus on Conan Edogawa, Haibara Ai, and Kogoro Mouri. While information exists regarding Genta Kojima's general personality and role in the broader *Detective Conan* series, it is not linked to his portrayal or any events in *The Worst Two Days in History*.