Detective Conan Episode 406 Apr 2026

Yukie couldn’t kill him directly because she needed an alibi. So she tricked him. On the day of his disappearance, she asked him to meet her at the abandoned shrine at 7:30 PM, claiming she had discovered something important about his past. She gave him a bottle of water laced with sleeping pills. He drank it on the way, feeling drowsy.

As they are about to leave the shrine, Conan notices a faint drag mark on the ground leading further into the woods. They follow it to the edge of a cliff overlooking a river. There, tangled in the roots of a tree hanging over the cliff, is a man’s jacket. Kogoro pulls it up, and a wallet falls out. Inside the wallet is Keisuke Sonoda’s driver’s license.

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."

Kogoro (via Conan) reveals that the locket is the key piece of evidence. It is not at the crime scene, and when the police search Yukie’s house, they will find it hidden in her jewelry box. Inside, besides Miyuki’s photo, there will be Keisuke’s fingerprints and, more importantly, traces of the sleeping pills from his system that transferred onto the locket when she removed it from his neck. Detective Conan Episode 406

Conan, using his voice-changer bowtie (but as himself, not as Kogoro yet), points out: "If he crashed or got lost, why would he take his locket but leave his briefcase and car keys? It doesn’t make sense." Kogoro, annoyed as always, dismisses Conan’s comment but secretly agrees.

Conan pieces everything together. He uses his tranquilizer dart on Kogoro and reveals the truth in his "Sleeping Kogoro" voice.

Suddenly, the doorbell rings. Ran rushes to answer, hoping for a client. A well-dressed, distressed woman in her late twenties stands at the door. She introduces herself as . She explains that her husband, Keisuke Sonoda , a successful architect, has been missing for three days. She has already contacted the police, but since there’s no evidence of a crime, they have only issued a missing person notice and are not actively investigating. Desperate, she has come to the famous "Sleeping Kogoro" for help. Yukie couldn’t kill him directly because she needed

The episode begins on a peaceful, rainy afternoon. Ran Mouri is cleaning the agency when she notices Conan Edogawa staring out the window, deep in thought. Kogoro Mouri is, as usual, sitting at his desk with a can of beer and a horse racing newspaper, grumbling about his losses. Ran scolds him for being lazy and not having any clients.

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.

This episode is an anime-original story (filler) that aired on June 13, 2005. It is a single-episode case featuring Conan, Ran, and Kogoro Mouri. Opening Scene: The Afternoon at the Mouri Detective Agency She gave him a bottle of water laced with sleeping pills

Yukie is arrested. As she is led away, she looks at Ran and says, "Tell him... tell my husband... I’m sorry we couldn’t keep the promise of the locket." It’s unclear if she means the promise to forget the past or the promise of their marriage.

She arrived at the shrine before him (using a different route) and waited. When he arrived, groggy, she confronted him about the locket. In his drugged state, he confessed and begged for forgiveness. She then pushed him toward the cliff. He stumbled, fell, and hit his head on a rock, then rolled into the river.

He explains: Ten years ago, Keisuke Sonoda caused an accident that killed Miyuki, Yukie’s sister. Keisuke was never criminally charged due to a lack of evidence that he was driving, but civilly, he paid a large settlement. He later met Yukie, who apparently did not know his connection to her sister’s death. They married.