The 23rd animated theatrical version of the "Detective Conan Series" has repeatedly broken box office and word-of-mouth records. As the last Conan movie in the Heisei era, it is the first time that the case is set overseas. Kid returns after four years and joins Conan to take action. The story revolves around the world's largest sapphire "Fist of Blue Sapphire" that sank to the bottom of the sea with the pirate ship at the end of the 19th century.