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Courcastクール • Renewal Forecasts
Spiral: Suiri no Kizuna banner
Spiral: Suiri no Kizuna
Aliases

Spiral: Suiri no Kizuna, Spiral: Bond of Reasoning, スパイラル -推理の絆-, Default, Japanese, English, Spiral: The Bonds of Reasoning, スパイラル ～推理の絆～

S24FALL 2002TV
Part of this franchise
concluded
Announced
In production
Releasing
Completed

Spiral: Bond of Reasoning

Spiral: Suiri no Kizuna

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)

Last updated

Jun 3, 2026, 10:21 PM

Franchise overview

Franchise timeline

Review every Courcast-tracked season for this series and jump between entries.

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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

44.0

CourScore is the probability of an official sequel announcement within 18 months.

Signal coverage: 92% • Signal freshness: High • Updated 28 minutes ago

Top reasons

  • Cross-platform audience rating - Weighted audience rating 69.4
  • Committee investment depth - Committee investment: 6 committee member(s), music label on committee, international distributor on committee
  • Cross-platform popularity index - Aggregate reach of ~4,441 followers
Runway
Low

Source runway looks tight, so near-term sequel odds are capped.

Financial & Commercial57
Production Feasibility24
Audience Reception69
Strategic Priors35
Fandom Engagement0

CourScore history

CourScore over time

Last analysedJun 3, 2026, 10:21 PM
Next scheduledtomorrow
Latest signals

Fresh telemetry

Courcast watches every connected signal to surface the freshest indicators of momentum.

SourceMetricGeoValueCollected
malcompletedGLOBAL29,688Jun 3, 2026, 12:00 AM
malplan to watchGLOBAL17,576Jun 3, 2026, 12:00 AM
mangadexchapters totalGLOBAL77May 23, 2026, 12:00 AM
malwatchingGLOBAL2,496Jun 3, 2026, 12:00 AM
wikipediapageviews dailyEN.WIKIPEDIA0Feb 17, 2026, 12:00 AM
kitsufavoritesGLOBAL22Jun 3, 2026, 12:00 AM
mangaupdatesbayesian ratingGLOBAL7.9May 23, 2026, 12:00 AM
mangadexsource status codeGLOBAL3May 23, 2026, 12:00 AM
kitsumember countGLOBAL4,711Jun 3, 2026, 12:00 AM
kitsuscore meanGLOBAL69.37Jun 3, 2026, 12:00 AM
kitsurating rankGLOBAL5,893Jun 3, 2026, 12:00 AM
mangadexvolumes totalGLOBAL15May 23, 2026, 12:00 AM
shikimoriscore meanGLOBAL72.1May 30, 2026, 12:00 AM
anilistaverage scoreGLOBAL67Jun 3, 2026, 12:00 AM
anilisttrendingGLOBAL0Jun 3, 2026, 12:00 AM
anilistfavoritesGLOBAL85Jun 3, 2026, 12:00 AM
tmdbpopularityGLOBAL2.92Jun 1, 2026, 12:00 AM
anilistpopularityGLOBAL7,904Jun 3, 2026, 12:00 AM
tmdbvote countGLOBAL9Jun 1, 2026, 12:00 AM