When Kaitou Kid challenges the police once again for the Russian Imperial Easter Egg, chaos ensues in Osaka. As Conan Edogawa, Heiji Hattori, and others join the pursuit, a series of murders unfolds, intertwining with the revelation of the Romanov Dynasty's dark secrets. In a high-stakes race for the egg, Conan must unmask the killer, outwit Kid, and safeguard his loved ones without unveiling his true identity.