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Lupin III: Chi no Kokuin - Eien no Mermaid banner
Lupin III: Chi no Kokuin - Eien no Mermaid
Aliases

Rupan Sansei, Lupin III: Blood Seal - Eternal Mermaid, Lupin III: Blood Seal of the Eternal Mermaid, Lupin III - Il sigillo di sangue, la sirena dell'eternità, Lupin III: Chi no Kokuin - Eien no Mermaid, Lupin the 3rd: Blood Seal of the Eternal Mermaid, ルパン三世 血の刻印 - 永遠のMermaid

S43WINTER 2011SPECIAL
Part of this franchise
concluded
Announced
In production
Releasing
Completed

Lupin the 3rd: Blood Seal of the Eternal Mermaid

Lupin III: Chi no Kokuin - Eien no Mermaid

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An Aquamarine gemstone, the Mermaid's Scale, appears in a secret, underground auction. The queen of the underworld (nicknamed the "Bearslayer") coerces the professional jewel-lifter Lupin into stealing the rock for her. Lupin swipes the stone, and quickly discovers not only that it's a forgery, but that the real Mermaid's Scale is part of an unsolved riddle that leads to transcending mortality! Soon, the "Bearslayer" is found murdered in cold blood! Her seemingly immortal young aide, Misa, is kidnapped by the arms dealer Himuro. The race is on for Lupin and his gang to locate the secret to eternal life... before it's used to send the Earth into a state of endless war!

(Source: Discotek Media)

Last updated

Jul 27, 2026, 01:01 PM

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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

49.2

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

Signal coverage: 100% • Signal freshness: High • Updated 23 hours ago

Top reasons

  • Studio bandwidth - Telecom Animation Film has no other concurrent active productions
  • Cross-platform audience rating - Weighted audience rating 74.2
  • Key staff availability - Director Yoshiharu Satou has no other concurrent active productions
Runway
Unknown

Source runway is unclear, so feasibility is treated as unknown.

Financial & Commercial41
Production Feasibility54
Audience Reception74
Strategic Priors33
Fandom Engagement31

CourScore history

CourScore over time

Last analysedJul 27, 2026, 01:01 PM
Next scheduledin 31 minutes
Renewal FAQ

Lupin the 3rd: Blood Seal of the Eternal Mermaid renewal questions

Common questions about this title's renewal prospects, answered by Courcast's daily analysis.

Is Lupin the 3rd: Blood Seal of the Eternal Mermaid getting a new season?
According to Courcast's latest analysis, Lupin the 3rd: Blood Seal of the Eternal Mermaid has a 49% 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 Lupin the 3rd: Blood Seal of the Eternal Mermaid be renewed?
Lupin the 3rd: Blood Seal of the Eternal Mermaid currently scores 49 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 Lupin the 3rd: Blood Seal of the Eternal Mermaid's renewal probability?
Lupin the 3rd: Blood Seal of the Eternal Mermaid's CourScore is 49 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.

SourceMetricGeoValueCollected
anilistpopularityGLOBAL2,752Jul 21, 2026, 12:00 AM
shikimoricompletion ratioGLOBAL0.48Jul 21, 2026, 12:00 AM
google trendsinterest dailyGLOBAL0Jul 21, 2026, 12:00 AM
wikipediapageviews dailyEN.WIKIPEDIA10Jun 13, 2026, 12:00 AM
malwatchingGLOBAL211May 22, 2026, 12:00 AM
malplan to watchGLOBAL2,758May 22, 2026, 12:00 AM
anilisttrendingGLOBAL0Jul 21, 2026, 12:00 AM
malcompletedGLOBAL5,615May 22, 2026, 12:00 AM
google trendsinterest weeklyGLOBAL9Jul 12, 2026, 12:00 AM
youtubeviews 7dGLOBAL20,721Jun 29, 2026, 12:00 AM
youtubeuploads 7dGLOBAL25Jun 29, 2026, 12:00 AM
malratingGLOBAL7.19Jul 22, 2026, 12:00 AM
youtubechannel views totalGLOBAL0Jun 29, 2026, 12:00 AM
youtubeviews 30dGLOBAL20,721Jun 29, 2026, 12:00 AM
youtubeuploads 30dGLOBAL25Jun 29, 2026, 12:00 AM
kitsurating rankGLOBAL717Jul 21, 2026, 12:00 AM
youtubesubscribers totalGLOBAL0Jun 29, 2026, 12:00 AM
malchapters totalGLOBAL12Jul 22, 2026, 12:00 AM
malsource status codeGLOBAL3Jul 22, 2026, 12:00 AM
malsource membersGLOBAL4,285Jul 22, 2026, 12:00 AM
malvolumes totalGLOBAL2Jul 22, 2026, 12:00 AM
annratingGLOBAL7.44Jul 18, 2026, 12:00 AM
kitsuscore meanGLOBAL80.5Jul 21, 2026, 12:00 AM
shikimorimember countGLOBAL1,378Jul 21, 2026, 12:00 AM
kitsumember countGLOBAL11,148Jul 21, 2026, 12:00 AM
shikimoriscore meanGLOBAL72.8Jul 21, 2026, 12:00 AM
anilistfavoritesGLOBAL14Jul 21, 2026, 12:00 AM
anilistaverage scoreGLOBAL70Jul 21, 2026, 12:00 AM
kitsufavoritesGLOBAL151Jul 21, 2026, 12:00 AM
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