Finished
“Family trapped on luxury cruise ship faces mysterious murders with no escape at sea.”
Noah of the Blood Sea
血海のノア
6.67
15,217 rank · 6,539 readers · 66 favorites
Horror
Mystery
Supernatural
Would You Love or Hate This?
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Based on your preference for character-driven stories with layered emotional arcs, this title's exploration of identity and belonging would deeply resonate. The pacing mirrors series you've rated highly, and its thematic depth aligns with your appreciation for nuanced storytelling...
However, the slow initial episodes might test your patience given your history of dropping shows that don't hook you early. The art style shift in the middle arc could also be a concern...
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Synopsis
Family trapped on luxury cruise ship faces mysterious murders with no escape at sea.
When a family of three book passage on a luxury liner, they soon realize that the glamorous cruise ship is nothing but a facade as a series of mysterious killings spread throughout the ship. With the sea providing no escape, how will they survive? (Source: Takeshobo, translated)
What people say
Community consensus
Derived from 6 sampled reviews
7.3
/10
What 6 readers settled on.
100%
recommend
Score distribution
median 7
mode 6
σ 1.37
Agreement
Mostly aligned
σ 1.37 · some divergence
The polarity gap
—
Not enough recommend signal yet
Score over time
↑ 0.33
Running avg · Jan 2020 → Feb 2026
Snap verdicts
· shortest highly-rated reviews
- 8 “The manga started off very strong, and I enjoyed the overall experience. However, the third act took a disappointing turn, and the open ending left too many loose ends that made the story feel like...”
- 7 “The artstyle is visually appealing and Kakeru stands out as a highlight among the cast. However, the story quickly becomes generic and predictable, suffering from a rushed pace that prevents any...”
- 7 “The concept is intriguing, and the line art is truly classic and natural, complemented by well-handled character designs. However, the story execution feels boring and poorly processed, while the...”
Verbosity
Short · 50%
Medium · 50%
Long · 0%
Read Order & Related
Explore the Noah of the Blood Sea universe
Cast
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A Manga Publication
- Format 25 × 5 ch × vol
- Total read 3h 20m approx
- Published Aug 2018 – Jun 2021
- Source Manga media type
- Ref. BS-M50081 catalog