Case Closed Episode 871

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👀 SPOILER-FREE SUMMARY

A standalone filler episode that trades the series' heavier narrative threads for a breezy cultural excursion. The Detective Boys and Professor Agasa head to Gifu City for the 450th anniversary of Oda Nobunaga's legendary capture of Gifu Castle, and the early stretch leans into lighthearted sightseeing and group dynamics. Expect the usual camaraderie-driven charm of a Detective Boys outing—playful banter, historical tidbits, and a warm educational tone. The pacing shifts once an unexpected incident introduces a mystery that demands the group's collective deduction skills, injecting suspense into what started as a relaxed field trip. It's a classically structured Case Closed one-off: culturally flavored setup, an enigma to unravel, and the satisfaction of watching sharp young minds piece things together. Low stakes but solidly entertaining comfort-food detective work.

🔥 KEY MOMENTS

⚠️ Spoiler Alert!

Nobuna Gaizers Take the Stage

The Detective Boys arrive in Gifu City for the Nobunaga 450th anniversary and catch a live performance by the local sentai hero group, the Nobuna Gaizers. Mitsuhiko is completely starstruck, setting the stage for his fateful decision later that night.

Mitsuhiko Vanishes

Driven by his admiration, Mitsuhiko sneaks out of the hotel after dark to track down the Nobuna Gaizers for autographs — and doesn't come back. His disappearance sends Conan and the rest of the group into a frantic search.

Heroes Caught on Camera

Security footage from the Gifu history museum reveals the Nobuna Gaizers — or people wearing their costumes — stealing valuable historical artifacts. The robbery and Mitsuhiko's disappearance suddenly appear to be connected.

Conan Connects the Dots

Conan pieces together that Mitsuhiko likely witnessed something he shouldn't have during his late-night outing, linking the boy's vanishing directly to the museum heist. The investigation shifts from a missing person case to unmasking the thieves hiding behind the hero costumes.

Unmasking the Fake Heroes

Conan and the Detective Boys expose the true identities of the impostors who disguised themselves as the Nobuna Gaizers to pull off the robbery. Mitsuhiko is found safe, and the real motives behind the theft are laid bare.

📍 ARC CONTEXT

This episode arrives as a deliberate cooldown after the intense two-part 'Conan Disappears Over a Cliff' storyline, offering a self-contained mystery with no bearing on the main plot. It's a filler breather before the series ramps back up with the multi-part 'Conan and Heiji's Nue Legend' arc, which brings folklore-driven investigations and the return of Heiji Hattori. Skippable for plot-chasers, but a pleasant standalone for fans who enjoy the Detective Boys dynamic.

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