Case Closed Episode 509

👀 SPOILER-FREE SUMMARY

A classic Detective Boys outing that delivers a grounded, neighborhood-scale mystery. Conan, Haibara, and the rest of the crew are pulled into a case by their classmate Kaito Suigiura, tasked with scoping out a suspicious resident in his apartment building. Expect a lighter, investigative tone built around observation and deduction rather than high-stakes danger. The pacing is deliberate, leaning into the group's dynamic and their methodical approach to sussing out odd behavior among the building's tenants. What elevates this beyond a standard Detective Boys filler case is the introduction of a new character, Subaru Okiya, whose presence adds an unmistakable undercurrent of intrigue. The episode rewards attentive long-term viewers while still functioning as an accessible, self-contained mystery for anyone along for the ride.