Spiral: Suiri no Kizuna

Spiral: Bond of Reasoning

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Alternative Titles

Japanese: スパイラル -推理の絆-
English: Spiral: Bond of Reasoning
More titles


Type: TV
Episodes: 25
Status: Finished Airing
Aired: Oct 1, 2002 to Mar 25, 2003
Premiered: Fall 2002
Broadcast: Tuesdays at 18:00 (JST)
Licensors: Funimation
Studios: J.C.Staff
Source: Manga
Genres: DramaDrama, MysteryMystery
Demographic: ShounenShounen
Duration: 23 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 7.231 (scored by 2231322,313 users)
1 indicates a weighted score.
Ranked: #28572
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #2720
Members: 50,583
Favorites: 278

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Ranked #2857Popularity #2720Members 50,583
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Episodes: /25
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Ayumu Narumi has lived all his life in the shadow of his famous detective brother, Kiyotaka. However, Kiyotaka disappeared two years ago, leaving behind his wife Madoka and Ayumu himself, along with a cryptic message about the "Blade Children."

One day, a girl at Ayumu's school suddenly dies. What seemed like a suicide at first glance turns out to be a murder, and Ayumu is the prime suspect. While investigating the person responsible for framing him, he discovers that the mysterious Blade Children are involved—and they somehow know Kiyotaka personally. Ayumu soon finds out just how dangerous the Blade Children are and learns that, in reality, he and Kiyotaka are intertwined more closely than he had ever believed.

[Written by MAL Rewrite]


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Related Anime

Characters & Voice Actors


Cook, Justin
Watson, Barry
Katsumata, Hideo
Hosoda, Mamoru
Director, Episode Director, Storyboard


Opening Theme

Apple Music
Amazon Music
Youtube Music
"Kibouhou (希望峰)" by Strawberry Jam

Ending Theme

"Cocktail" by Hysteric Blue

Jul 16, 2007
Spiral is one of those animes that gets a lot of mixed reviews. In my opinion, however, it is one of the greatest animes ever created for many reasons. It\'s not completely perfect, of course -- I don\'t believe anything is perfect -- but it comes pretty darn close.


\"I\'m going to pursue the mystery of the Blade Children.\" This single line, spoken by Kiyotaka Narumi, is the premise for the entire show. Above all else, Spiral is a mystery anime, and it centers around what, exactly, the Blade Children are. It\'s a fascinating idea, that, most unfortunately, is never fully ...
May 11, 2008
Spiral was an interesting show. The story grabs you right away, spins you around and confuses you (in a positive way of course) It really makes you want to keep watching to find out what happens next. Unfortunately the story doesn't keep up with it's great start. It starts to slow down and less questions get answered. This is my biggest disappointment with the show, if the story had kept up with the beginning it would have been an absolutely incredible show.

The art work is mediocre and at times poorly done. The colors seem kind of dull. The ...
Jul 22, 2007
When I finished the first episode, I couldn't help myself to continue on. This anime probably has one of the best beginnings I've ever seen. The plot rapidly unfolds about the relationship between Narumi and the Blade Children, as well as Hiyomi (the main female protagonist).The audience was entertained with how Narumi used logical deductions to solve crimes, which even the police are having a hard time with, and life-threatening situations designed by the Blade Children to 'test' him. Some romance were evident in the early part of the series, which blends in nicely with Narumi's somewhat inability to socialize.

Having said that, the series has ...


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Poll: Spiral: Suiri no Kizuna Episode 25 Discussion
mikzflava - Aug 5, 2010
33 replies by astralkill00 »»
Oct 1, 5:08 AM
Poll: Spiral: Suiri no Kizuna Episode 24 Discussion
maruf92bisj - Jun 18, 2014
3 replies by Ashhk »»
Jun 29, 2020 3:31 PM
Poll: Spiral: Suiri no Kizuna Episode 23 Discussion
maruf92bisj - Jun 18, 2014
2 replies by Ashhk »»
Jun 29, 2020 3:08 PM
Poll: Spiral: Suiri no Kizuna Episode 22 Discussion
maruf92bisj - Jun 18, 2014
2 replies by Ashhk »»
Jun 29, 2020 2:44 PM
Poll: Spiral: Suiri no Kizuna Episode 21 Discussion
maruf92bisj - Jan 2, 2014
2 replies by Ashhk »»
Jun 29, 2020 2:20 PM