Beta

Courcast is still in active development - features and data may shift while we polish the experience.

Courcastクール • Renewal Forecasts
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, Default, Synonym, Japanese, English

S111WINTER 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

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

Jun 3, 2026, 11:05 PM

Franchise overview

Franchise timeline

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

View franchise tree
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

37.2

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

Signal coverage: 92% • Signal freshness: High • Updated 4 hours ago

Top reasons

  • Cross-platform audience rating - Weighted audience rating 74.2
  • Cross-platform popularity index - Aggregate reach of ~755 followers
  • Committee renewal track record - Lead committee members (Telecom Animation Film) historically renew 4% of productions
Runway
Unknown

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

Financial & Commercial41
Production Feasibility24
Audience Reception74
Strategic Priors17
Fandom Engagement0

CourScore history

CourScore over time

Last analysedJun 3, 2026, 11:05 PM
Next scheduledin 20 hours
Latest signals

Fresh telemetry

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

SourceMetricGeoValueCollected
youtubechannel views totalGLOBAL20,136,744May 17, 2026, 12:00 AM
youtubesubscribers totalGLOBAL34,200May 17, 2026, 12:00 AM
anilistfavoritesGLOBAL14Jun 1, 2026, 12:00 AM
anilistaverage scoreGLOBAL70Jun 1, 2026, 12:00 AM
kitsumember countGLOBAL11,137Jun 1, 2026, 12:00 AM
kitsuscore meanGLOBAL80.51Jun 1, 2026, 12:00 AM
kitsurating rankGLOBAL709Jun 1, 2026, 12:00 AM
wikipediapageviews dailyEN.WIKIPEDIA2Apr 30, 2026, 12:00 AM
kitsufavoritesGLOBAL151Jun 1, 2026, 12:00 AM
anilistpopularityGLOBAL2,696Jun 1, 2026, 12:00 AM
malwatchingGLOBAL211May 22, 2026, 12:00 AM
malplan to watchGLOBAL2,758May 22, 2026, 12:00 AM
anilisttrendingGLOBAL0Jun 1, 2026, 12:00 AM
shikimoriscore meanGLOBAL72.8May 28, 2026, 12:00 AM
malcompletedGLOBAL5,615May 22, 2026, 12:00 AM