Aliases
Spiral: Suiri no Kizuna, Spiral: Bond of Reasoning, スパイラル -推理の絆-, Spiral: The Bonds of Reasoning, スパイラル ～推理の絆～
S1FALL 2002TV
Part of this franchise
concluded
Announced
In production
Releasing
Completed
Ayumu Narumi's older brother Kiyotaka, a renowned detective and piano player, disappears all of a sudden. The only clue Narumi has, are the Blade Children. Two years later a row of murders and incidents begin, relating to the Blade Children. Together with school journalist, Hiyono Yuizaki, Narumi tries to figure out their destiny.
(Source: Anime News Network)
(Source: Anime News Network)
Last updated
Oct 28, 2026, 06:23 AM
Franchise overview
Franchise timeline
Review every Courcast-tracked season for this series and jump between entries.
Renewal pulse
Courcast score breakdown
CourScore weighs signals for an official sequel announcement within 18 months, blending attention velocity, completion strength, and catalogue health.
CourScore
23.9
CourScore measures renewal signals out of 100. It is not a calibrated probability of an official sequel announcement within 18 months.
Signal coverage: 100% • Signal freshness: Medium • Updated 14 hours ago
Top reasons
- Cross-platform popularity index - Aggregate reach of ~10,459 followers
- Domestic episode engagement (Niconico) - 13,187,569 episode views on Niconico (JP domestic)
- Favourite base strength - 76 cross-platform favourites
Runway
Unknown
Source runway is unclear, so feasibility is treated as unknown.
Financial & Commercial79
Production Feasibility24
Audience Reception70
Strategic Priors71
Fandom Engagement48
CourScore history
CourScore over time
Last analysedOct 28, 2026, 06:23 AM
Next scheduledin 10 hours
Renewal FAQ
Spiral: Bond of Reasoning renewal questions
Common questions about this title's renewal prospects, answered by Courcast's daily analysis.
- Is Spiral: Bond of Reasoning getting a new season?
- According to Courcast's latest analysis, Spiral: Bond of Reasoning has a 24/100 renewal signal score. This score is updated daily and blends fandom momentum, streaming signals, source-material runway, and franchise history. Check back regularly for the latest forecast.
- Will Spiral: Bond of Reasoning be renewed?
- Spiral: Bond of Reasoning currently scores 24 out of 100 on Courcast. Signals driving this estimate include online discussion volume, sequel history within the franchise, and platform engagement data - all recalculated daily. Scores from 70 indicate strong renewal signals; scores from 85 are labelled very likely.
- What is Spiral: Bond of Reasoning's renewal probability?
- Spiral: Bond of Reasoning's CourScore is 24 as of the latest update. CourScore is Courcast's proprietary metric that aggregates over a dozen renewal signals - from source-material runway to social buzz - into a single daily signal score out of 100.
Latest signals
Fresh telemetry
Courcast watches every connected signal to surface the freshest indicators of momentum.
| Source | Metric | Geo | Value | Collected |
|---|---|---|---|---|
| anilist | average score | GLOBAL | 67 | Oct 12, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 76 | Oct 12, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 8,158 | Oct 12, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Oct 12, 2026, 12:00 AM |
| crunchyroll | episode count | GLOBAL | 1 | Sep 7, 2026, 12:00 AM |
| crunchyroll | episode dislikes | GLOBAL | 8 | Sep 7, 2026, 12:00 AM |
| crunchyroll | episode likes | GLOBAL | 134 | Sep 7, 2026, 12:00 AM |
| crunchyroll | series available | GLOBAL | 1 | Sep 7, 2026, 12:00 AM |
| filmarks | mark count | JP | 245 | Oct 12, 2026, 12:00 AM |
| filmarks | score mean | JP | 68 | Oct 12, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 0 | Sep 27, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 100 | Oct 4, 2026, 12:00 AM |
| google trends | momentum log ratio | GLOBAL | 0 | Oct 4, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 23 | Oct 12, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 4,719 | Oct 12, 2026, 12:00 AM |
| kitsu | rating rank | GLOBAL | 6,068 | Oct 12, 2026, 12:00 AM |
| kitsu | score mean | GLOBAL | 69.37 | Oct 12, 2026, 12:00 AM |
| mal | chapters total | GLOBAL | 78 | Oct 26, 2026, 12:00 AM |
| mal | completed | GLOBAL | 29,832 | Oct 12, 2026, 12:00 AM |
| mal | members | GLOBAL | 55,733 | Oct 12, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 17,784 | Oct 12, 2026, 12:00 AM |
| mal | rating | GLOBAL | 7.99 | Oct 26, 2026, 12:00 AM |
| mal | source members | GLOBAL | 13,424 | Oct 26, 2026, 12:00 AM |
| mal | source status code | GLOBAL | 3 | Oct 26, 2026, 12:00 AM |
| mal | volumes total | GLOBAL | 15 | Oct 26, 2026, 12:00 AM |
| mal | watching | GLOBAL | 2,516 | Oct 12, 2026, 12:00 AM |
| mangadex | chapters total | GLOBAL | 77 | Oct 26, 2026, 12:00 AM |
| mangadex | source status code | GLOBAL | 3 | Oct 26, 2026, 12:00 AM |
| mangadex | volumes total | GLOBAL | 15 | Oct 26, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 7.9 | Oct 26, 2026, 12:00 AM |
| mfc | entry likes | GLOBAL | 11 | Oct 23, 2026, 12:00 AM |
| mfc | figures total | GLOBAL | 6 | Oct 23, 2026, 12:00 AM |
| mfc | goods total | GLOBAL | 69 | Oct 23, 2026, 12:00 AM |
| mfc | media total | GLOBAL | 31 | Oct 23, 2026, 12:00 AM |
| mfc | merch total | GLOBAL | 106 | Oct 23, 2026, 12:00 AM |
| niconico | episode comments | JP | 490,237 | Oct 12, 2026, 12:00 AM |
| niconico | episode mylists | JP | 126,705 | Oct 12, 2026, 12:00 AM |
| niconico | episode views | JP | 13,187,569 | Oct 12, 2026, 12:00 AM |
| comments 7d | GLOBAL | 107 | Sep 28, 2026, 12:00 AM | |
| mentions 7d | GLOBAL | 1 | Oct 12, 2026, 12:00 AM | |
| score 7d | GLOBAL | 3 | Oct 12, 2026, 12:00 AM | |
| thread count | GLOBAL | 1 | Oct 12, 2026, 12:00 AM | |
| threads 7d | GLOBAL | 1 | Oct 12, 2026, 12:00 AM | |
| shikimori | completion ratio | GLOBAL | 0.36 | Oct 12, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 4,200 | Oct 12, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 72.2 | Oct 12, 2026, 12:00 AM |
| simkl | imdb score | GLOBAL | 69 | Oct 12, 2026, 12:00 AM |
| simkl | score mean | GLOBAL | 68 | Oct 12, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 6.47 | Oct 12, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 9 | Oct 12, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 1 | Oct 27, 2026, 12:00 AM |
| youtube | channel views total | GLOBAL | 5,820,251 | Jun 29, 2026, 12:00 AM |
| youtube | subscribers total | GLOBAL | 4,940 | Jun 29, 2026, 12:00 AM |
| youtube | uploads 30d | GLOBAL | 5 | Jun 29, 2026, 12:00 AM |
| youtube | uploads 7d | GLOBAL | 4 | Jun 29, 2026, 12:00 AM |
| youtube | views 30d | GLOBAL | 19,602 | Jun 29, 2026, 12:00 AM |
| youtube | views 7d | GLOBAL | 5,341 | Jun 29, 2026, 12:00 AM |