阳光明媚的一天，柯南（高山南 配音）、小兰（山崎和佳奈 配音）以及少年侦探团的伙伴们随同毛利小五郎（小山力也 配音）来到大阪，参加在当地举行的“高中生皋月杯”百人一首和歌大赛。期间，他们还见到了彼此的好友服部平次（堀川亮 配音）和远山和叶（宫村优子 配音）。就在比赛进行中途，一封爆炸预告信送到电视台，警方迅速行动起来组织疏散。疏散一半时，爆炸突然发生，结果平次与和叶被困在建筑物中。而在一连串的混乱过后，一位皋月杯相关人员的尸体突然出现在众人面前。迷离的案情再度引起柯南的注意…… 　　本片根据青山刚昌的超人气漫画改编，系“名侦探柯南系列”第21部电影版。A bombing case at Nichiuri TV in autumn. The Satsuki Cup, which crowns the winner of Japan's Hyakunin Isshu, is currently being filmed inside the facility. The incident results in a big commotion and, while the building is burning to ashes, the only people left inside are Hattori and Toyama Kazuha . They get rescued just in time by Conan , who rushes to the scene. Both the identity and purposes of the bomber are unknown. While confusion takes over due to the explosion, Conan meets a mysterious beautiful girl who claims she is "Heiji's fiancée". Her name is Momiji Ooka and she is the Kyoto High School champion of karuta game. As fate would have it, Kazuha is going to face Momiji in the Hyakunin Isshu, so she begins to train with the help of Heiji's mother, Shizuoka ,who is a skilled Karuta player. At the same time, in a Japanese house in Arashiyama Kyoto's outskirts, the reigning Satsuki Cup champion is murdered. Pictures of the crime scene reveal Momji's presence. Additionally, ...