Detective Conan Episode 406 __link__ Link

Yukie breaks down. She admits to the murder but says, "He took my sister’s future. He deserved to die. And that locket... he didn’t deserve to wear her face."

Conan then looks into the locket. He asks Ran to investigate Yukie’s past. Ran discovers that Yukie had a younger sister named who died in a car accident ten years ago. In the accident, a drunk driver hit their car. The drunk driver? A young, promising architect named Keisuke Sonoda. Detective Conan Episode 406

She provides a photograph of her husband—a handsome man in his early thirties with a confident smile. She also mentions that he was wearing a distinctive silver locket around his neck, which he never took off. Inside the locket is a small, old photograph of a young girl, not her. When Kogoro asks about this, Yukie looks down sadly and says, "He never told me who she was. He said it was a memento of a promise he made a long time ago." Yukie breaks down

Initially, it looks like an accident or suicide. But Conan notices the critical contradiction: Keisuke’s watch is broken, showing the time of 2:15 PM, and the date on the watch is the day he disappeared. However, the pathologist later confirms that the time of death was around 8:00 PM that evening. If he fell at 2:15 PM, he couldn’t have died at 8:00 PM. Therefore, the watch was smashed deliberately to mislead investigators. And that locket

The central mystery of Episode 406 revolves around an alibi and a seemingly mundane object: a rubber stamp (or hanko).

For a deep dive into the full case and subsequent deductions, you can explore the Detective Conan World Wiki or follow the rewatch discussion on DC Rewatch character analysis of Heiji and Conan's partnership? Conan and Heiji's Deduction Magic