The Mysterious Boy

From Detective Conan Wiki
Episode 829
(Int. Episode 884)

TV Episode 829.jpg

Title: The Mysterious Boy
Japanese title: 不思議な少年
(Fushigi na Shōnen?)
Original airdate: August 13, 2016
Broadcast rating: 5.2%
Filler case: #264
Season: 26
Manga source: TV Original
Cast: Conan Edogawa
Ai Haibara
Detective Boys
Juzo Megure
Miwako Sato
Wataru Takagi
Shinichi Kudo
Kamen Yaiba
Case solved by: Conan Edogawa
Next Conan's Hint: Toy engine
Director: Yasuichiro Yamamoto
Screenplay: Takahiro Okura
Storyboard: Mitsuko Kase
Episode director: Tetsuaki Mita
Animation Director: Seiji Muta (supervisor)
Kenichi Otomo
Chiemi Hironaka
Character Design: Masatomo Sudo
Nobuyuki Iwai
Kumiko Shishido (design works)
Opening song: Sekai wa Anata no Iro ni Naru
Closing song: SAWAGE☆LIFE
Prev episode: « Ramen So Good, It's to Die For 2
Next episode: A Cottage Surrounded by Zombies »
List of episodes

The Mysterious Boy (不思議な少年 Fushigi na Shōnen?) is the 829th episode of the Detective Conan anime.




On the Kometo Bridge, Tokujiro Nagai told Tsutomu Oshiro that he had something to discuss with him, after making him drunk by giving him a Scotch. While Oshiro's back was temporarily turned, Nagai hurled a flashing boomerang and then quickly drew Oshiro's attention to it. When Oshiro looked after the mysterious glowing object flying by, Nagai grabbed his legs and tipped him over the bridge railing to his death in the dried-out riverbed.


EP829 Case.jpg

Location: Kometo Bridge
Victim: Tsutomu Oshiro
Age: 30 years old
Cause of death: Blunt force trauma after falling
Culprit: Tokujiro Nagai

On a sunny afternoon, the Detective Boys were remarking about the "UFO incident" that happened rather recently around the area. Mitsuhiko said that there have been three sightings since the month started. And allegedly, it was something glowing gold in the sky, with some witnesses of aliens on the riverbed. Later, they noticed a shop situated nearby named "Nagai's Toys", and the curtains of it seemed to be opened. However, as Genta tried to open it, the door was locked.

Everyone here knows this store. Ayumi said that the store was run by a nice old couple. Genta added that the toys they sell are too old and never the ones he wants. The majority decided to leave. At this time, Genta's strawberry-flavored ice cream imperceptibly stained Conan's clothes. Their every move was monitored specifically by the debt collector, Tsutomu, who was behind the window of the store. He was negotiating with the store owner, Tokujiro, concerning the money that Tokujiro had borrowed from him. Tsutomu discovered that the kid with glasses kept staring at a toy engine that was deposited on top of the shelf. As he was touching the toy engine, it fell from the shelf to the ground. And apparently, the little mechanical pieces of the toy were scattering all around the floor. And Tokujiro got quite angry with him because he claimed that his wife treasured this engine.

Tokujiro Nagai picking up the broken toy engine.

Tsutomu's aggressiveness made Tokujiro give him a bottle of scotch, and Tsutomu drank it straight away. After that, Tokujiro led him to the Kometo Bridge, and the scenario described before happened.

Meanwhile, the Detective Boys were still searching for the curious UFO under the bridge. Conan found a "flashing boomerang" on the ground, and when he pressed it, the light started glowing gold. And not far away from it, the corpse of Tsutomu was lying under the bridge.

Megure declared that it was an accident, but Conan rebutted his perspective. Since he discovered a coupon for half off at a restaurant called "Shinobiya Ramen" that was put inside his wallet. Conan deduced that he must be desperate to eat ramen that day, and it seemed fairly out of left field that he took a complete different route from the ramen restaurant. Hence, most of the clues did not look plausible. In addition, Conan identified something black on top of the victim's hand. What could it be?

In "Nagai's Toys", Tokujiro was fixing the toy engine that Tsutomu broke. He heard some noise outside, and as he opened the door, Conan asked if he could stay in his store for some time because their parents had not yet arrived home. At the same time, Tokujiro found out that the boy in front of him seemed to be the kid who came to the toy store ten years ago.


  • Resolution


    • This episode marks the only time that a single-case, anime-original character discovers Conan's identity.
    • Screenwirter for this episode, Takahiro Okura, under the recommendation of Gosho Aoyama, first time participates the Detective Conan anime production.



    Tokujiro's recollection.
    • Tokujiro Nagai (to Conan Edogawa):

    No, that's not possible. You haven't changed at all since ten years ago. What on earth...?

    • Conversation between Juzo Megure and Tokujiro Nagai on the bridge:

    Juzo Megure: Maybe I shouldn't ask, but why did you turn yourself in?

    Tokujiro Nagai: A mysterious boy appeared.

    Juzo Megure: A mysterious boy?

    Tokujiro Nagai: Yes, a mysterious boy who hadn't changed at all since ten years ago. He... He may have been sent by my wife in heaven.

    In other languages

    Language Title Translation
    Flag of Catalonia Catalan (Catalan dub) El noi misteriós The mysterious boy
    Flag of Thailand Thai เด็กผู้ชายมหัศจรรย์ A Mysterious Boy
    Flag of Vietnam Vietnamese Cậu bé bí ẩn

    See also

    Episodes of Season 26