Meitantei Conan: Hanamaru na Answer

Jewelry shops around the city are being raided, yet Conan's friend Ayumi is thrilled rather than worried, since the robberies remind her of her favorite anime, Precure, and she hopes a repeat appearance might let her meet the PreCures. Conan and the Junior Detective League are tasked with watching over Kaneko Jewelry Store, said to be the next likely target. By trailing a suspicious shopper, they learn both the planned date of the heist and the criminals' hideout, leading police to close in, though Ayumi spots something strange in the process. This special crossover with Star Detective Precure marks the 30th anniversary of Detective Conan; it is one of two linked episodes, with the companion airing as episode 18 of Star Detective Precure.