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
Aug 31, 2026, 11:55 AM
Franchise overview
Franchise timeline
Review every Courcast-tracked season for this series and jump between entries.
Renewal pulse
Courcast score breakdown
CourScore is the probability of an official sequel announcement within 18 months, blending attention velocity, completion strength, and catalogue health.
CourScore
58.4
CourScore is the probability of an official sequel announcement within 18 months.
Signal coverage: 100% • Signal freshness: Medium • Updated 11 days ago
Top reasons
- Source runway - Source material runway assessed as 'ok'
- Domestic episode engagement (Niconico) - 13,171,489 episode views on Niconico (JP domestic)
- Cross-platform audience rating - Weighted audience rating 68.6
Runway
Ok
Source runway looks healthy for a continuation.
Financial & Commercial54
Production Feasibility55
Audience Reception77
Strategic Priors60
Fandom Engagement38
CourScore history
CourScore over time
Last analysedAug 31, 2026, 11:55 AM
Next scheduled11 days ago
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 58% renewal probability. 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 58 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. Titles scoring above 70 are considered Very Likely to receive a continuation.
- What is Spiral: Bond of Reasoning's renewal probability?
- Spiral: Bond of Reasoning's CourScore is 58 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-updated probability 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 | Aug 17, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 87 | Aug 17, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 8,070 | Aug 17, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Aug 17, 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 | 238 | Sep 7, 2026, 12:00 AM |
| filmarks | score mean | JP | 68 | Sep 7, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 0 | Sep 6, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 7 | Aug 30, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 23 | Sep 7, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 4,715 | Sep 7, 2026, 12:00 AM |
| kitsu | rating rank | GLOBAL | 6,043 | Sep 7, 2026, 12:00 AM |
| kitsu | score mean | GLOBAL | 69.37 | Sep 7, 2026, 12:00 AM |
| mal | chapters total | GLOBAL | 78 | Sep 10, 2026, 12:00 AM |
| mal | completed | GLOBAL | 29,796 | Aug 31, 2026, 12:00 AM |
| mal | members | GLOBAL | 55,616 | Aug 31, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 17,726 | Aug 31, 2026, 12:00 AM |
| mal | rating | GLOBAL | 7.99 | Sep 10, 2026, 12:00 AM |
| mal | source members | GLOBAL | 13,385 | Sep 10, 2026, 12:00 AM |
| mal | source status code | GLOBAL | 3 | Sep 10, 2026, 12:00 AM |
| mal | volumes total | GLOBAL | 15 | Sep 10, 2026, 12:00 AM |
| mal | watching | GLOBAL | 2,506 | Aug 31, 2026, 12:00 AM |
| mangadex | chapters total | GLOBAL | 77 | Sep 10, 2026, 12:00 AM |
| mangadex | source status code | GLOBAL | 3 | Sep 10, 2026, 12:00 AM |
| mangadex | volumes total | GLOBAL | 15 | Sep 10, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 7.9 | Sep 10, 2026, 12:00 AM |
| niconico | episode comments | JP | 490,132 | Sep 7, 2026, 12:00 AM |
| niconico | episode mylists | JP | 126,659 | Sep 7, 2026, 12:00 AM |
| niconico | episode views | JP | 13,175,778 | Sep 7, 2026, 12:00 AM |
| shikimori | completion ratio | GLOBAL | 0.36 | Sep 7, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 4,184 | Sep 7, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 72.2 | Sep 7, 2026, 12:00 AM |
| simkl | imdb score | GLOBAL | 69 | Aug 17, 2026, 12:00 AM |
| simkl | score mean | GLOBAL | 68 | Aug 17, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 4.35 | Sep 7, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 9 | Sep 7, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 43 | Sep 5, 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 |