

Also known as: Spiral: Bond of Reasoning
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.
25
Total episodes
25
Canon episodes
0
Filler episodes
0%
% Filler
Every season
Single Season
Currently, Spiral: Suiri no Kizuna has no sequels, prequels, or registered spin-offs. This is the complete story available at the moment.
What to watch, what to skip
You're in luck! Spiral: Suiri no Kizuna doesn't have a single filler episode: all 25 episodes are canon. It's a faithful adaptation of the original manga, so you can enjoy it from first to last without skipping anything or checking any list of expendable episodes.
The 25 episodes of Spiral: Suiri no Kizuna aired in 2002–2003 and follow the story's chronological order. There are no transition episodes, no needless recaps, no arcs invented by the studio: every chapter advances the main plot and develops the characters just as the source material does.
In short, the watch order for Spiral: Suiri no Kizuna is as simple as it gets: start at episode 1 and keep going to episode 25 without detours. If you came looking for which Spiral: Suiri no Kizuna episodes are filler so you could skip them, the answer is that there aren't any.
Episode by episode
25 Episodes
| # | Episodes | Aired | Type |
|---|---|---|---|
| 1 | Spiral of Destiny10/01/2002 | 10/01/2002 | Canon |
| 2 | Manor of Death10/08/2002 | 10/08/2002 | Canon |
| 3 | Cursed Children10/15/2002 | 10/15/2002 | Canon |
| 4 | The Happiness of Those Who Believe10/22/2002 | 10/22/2002 | Canon |
| 5 | Misty Gallows10/29/2002 | 10/29/2002 | Canon |
| 6 | Blind Spot in the Web11/05/2002 | 11/05/2002 | Canon |
| 7 | The Choice of the Nonbeliever11/12/2002 | 11/12/2002 | Canon |
| 8 | Day of the Defeated11/19/2002 | 11/19/2002 | Canon |
| 9 | All Things That Are Possible to You11/26/2002 | 11/26/2002 | Canon |
| 10 | Only One Wise Action12/03/2002 | 12/03/2002 | Canon |
| 11 | Goodnight Sweetheart12/10/2002 | 12/10/2002 | Canon |
| 12 | Dry Eyes12/17/2002 | 12/17/2002 | Canon |
| 13 | Overture12/24/2002 | 12/24/2002 | Canon |
| 14 | Shimmering Fragrance01/07/2003 | 01/07/2003 | Canon |
| 15 | Like a Swan01/14/2003 | 01/14/2003 | Canon |
| 16 | Moving Targets01/21/2003 | 01/21/2003 | Canon |
| 17 | The Watcher in the Darkness01/28/2003 | 01/28/2003 | Canon |
| 18 | The Lamenting Angel02/04/2003 | 02/04/2003 | Canon |
| 19 | Mirror of the Heart02/11/2003 | 02/11/2003 | Canon |
| 20 | Whispering Shadows02/18/2003 | 02/18/2003 | Canon |
| 21 | The Sound of a Breaking Heart02/25/2003 | 02/25/2003 | Canon |
| 22 | The Confession03/04/2003 | 03/04/2003 | Canon |
| 23 | Relentless Rain03/11/2003 | 03/11/2003 | Canon |
| 24 | The Man in the High Castle03/18/2003 | 03/18/2003 | Canon |
| 25 | The Sound of an Iris Freezing and Melting03/25/2003 | 03/25/2003 | Canon |
Verified legal platforms
We don't have confirmed streaming platforms for this anime yet.
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Common questions
Spiral: Suiri no Kizuna has a total of 1 season. The series is completed. Each season is divided into multiple episodes with stories that advance the main plot of the anime.
In total, Spiral: Suiri no Kizuna has 25 episodes in its only season. You can consult the complete episodes table to see the breakdown by season.
It is recommended to watch Spiral: Suiri no Kizuna in chronological broadcast order. This means starting from season 1 and continuing sequentially to the last season. Check our watch order guide which includes information about filler vs canon episodes for an optimal experience.
Spiral: Suiri no Kizuna is available on various legal streaming platforms. Check the platforms section at the top of this page to see where it's currently available. Options may vary depending on your geographic region.
Yes, Spiral: Suiri no Kizuna is a completed anime. All seasons have already aired and you can enjoy the series in its entirety without waiting for new episodes.
No, Spiral: Suiri no Kizuna does not have filler episodes. All its episodes are canon and faithfully follow the original manga story, so you can watch all episodes without worrying about skipping anything.
You can check the score, reviews, characters and statistics for Spiral: Suiri no Kizuna directly on MyAnimeList, the world's largest anime database. There you'll find the community rating, global ranking and opinions from other fans.