A bombing at a TV station traps two people Conan actually cares about, and for once the mystery takes a backseat to whether he can get them out alive. The Ogura Hyakunin Isshu tournament becomes the frame, but the real case is the clock ticking down inside a burning building. Conan works the problem like always, except this time solving it doesn't feel like the point anymore.
A bombing tears through Nichiuri TV during filming of Japan's most prestigious karuta tournament, trapping Heiji and Kazuha inside the burning building. Conan arrives just in time to pull them to safety, but questions linger: who planted the bomb and why? Before anyone can catch their breath, a stunning girl appears claiming to be Heiji's fiancée. Her name is Momiji Ooka, Kyoto's reigning karuta champion, and her sudden arrival throws everything into chaos. By coincidence, Kazuha will face Momiji in the upcoming Hyakunin Isshu competition, forcing the two young women into an uneasy rivalry both on and off the card mat. As the mystery deepens and strange incidents pile up around the tournament, Conan navigates competing loyalties between his friends while hunting for the bomber's true identity. The film weaves together a classic detective puzzle with the emotional stakes of friendship, romance, and tradition, all set against the backdrop of Japan's ancient poetry game.