In the historic city of Kyoto, a string of brutal murders shakes the ancient capital. Five members of the notorious Genji-Hotaru, a gang of art thieves specializing in ancient Buddhist statues, are systematically hunted down and killed by a masked archer wielding a katana and arrows. Meanwhile, Conan Edogawa, along with Kogoro Mouri, Ran, and Sonoko, travels to Kyoto because Kogoro has been hired to solve the mystery behind the theft of a priceless Yakushi Nyorai statue from the historic Yamakasa Temple eight years prior.Conan quickly crosses paths with Heiji Hattori, the teenage detective from Osaka who is also investigating the murders, driven by his own childhood memories of meeting his "first love" at a temple during the cherry blossom season. As
the investigation deepens, Conan and Heiji face constant danger. The masked killer targets Heiji, wounding him with an arrow, and later kidnaps Kazuha to draw Heiji into a final confrontation.Conan deduces that the mastermind behind the killings and the art thefts is Ryuuhei Nishio, an antique dealer and a former member of the Genji-Hotaru gang who betrayed his partners to keep all the stolen loot for himself. However, Nishio is unexpectedly murdered by an even more shocking culprit: Chief Priest Ryuugen, who sought vengeance for the desecration and theft of the temple’s sacred Buddha statue.The climax shifts to the sprawling temple grounds, where Heiji is cornered by the remaining gang members. Despite his injuries, Heiji engages in a fierce sword duel on the temple steps. Conan uses his enhanced gadgets to disable the thugs, while Heiji finally uncovers the truth about his
childhood memory. He realizes that Kazuha was actually the girl he met years ago under the cherry blossoms, disguised and singing a traditional ball game song, rather than the aristocratic woman he had long imagined.With the conspiracy unraveled, the stolen statue is recovered, and peace returns to Kyoto. Heiji and Kazuha share a quiet, emotionally resonant moment under the blooming cherry blossoms, their bond deepened by the ordeal. Conan, having once again solved the intricate puzzle, reflects on the intertwining fates of the ancient city’s history and the dark greed of men, bringing a satisfying and dramatic conclusion to a thrilling chapter of mystery, history, and romance.