Arago Review: A London Detective With His Dead Brother's Arm Hunts Serial Killers

Quick Take

• The supernatural detective manga set in London with genuine visual atmosphere and a body horror twist on the "dead person's power transferred to protagonist" premise
• Best as a quick action-mystery read rather than a deep investment — it delivers what it promises with consistency if not exceptional depth
• 10 volumes complete; a satisfying short-form action manga for readers who enjoy supernatural detective settings

Who Is This Manga For?

• Readers who want supernatural action manga set outside Japan — the London setting is used specifically, not decoratively
• Anyone who enjoys detective-meets-supernatural-action hybrids with clear structure
• Fans of short complete series that deliver escalation without overstaying their welcome
• Readers who want accessible action manga with a distinctive visual style

Content Warnings & Age Rating

Age Rating: T (Teen) Content Warnings: Supernatural violence; Patchman's killings are depicted with enough specificity to establish menace; the arm transplant premise involves body horror logic; grief over a sibling's death is the protagonist's core motivation

The T rating is accurate.

Yu's Rating

Category	Score
Story Depth	★★★☆☆
Art Style	★★★★☆
Character Development	★★★☆☆
Accessibility for Non-Japanese Readers	★★★★★
Reread Value	★★★☆☆

Story Overview

London. A supernatural serial killer called Patchman has been killing victims and taking their body parts to "complete" himself — he is literally assembling a body. He kills Seth, Arago's twin brother.

When Arago confronts Patchman, Seth's severed right arm reattaches to Arago's body and activates a power called ARMS — a supernatural ability that manifests through the arm. Arago can now fight Patchman on his level.

He joins the London police's special division handling supernatural crime. He works with Officer Liv, who becomes his partner. The series follows him hunting Patchman and the supernatural criminals who appear in Patchman's wake, while gradually uncovering the mythology behind the ARMS power and what his brother's arm means for his own identity.

Characters

Arago — His grief for Seth is the constant background of the series. The arm is both tool and reminder — using it is using what remains of his brother. The series handles this as emotional weight rather than melodrama.

Liv — His police partner provides the procedural grounding the supernatural elements require. Her competence in non-supernatural matters and her skepticism-turned-belief follows genre convention but is executed with enough personality to distinguish her.

Art Style

Yoshida's art establishes the London setting with visual specificity — Victorian and early modern architecture, fog, a color palette appropriate for supernatural crime fiction. The action sequences are clear and dynamic. Patchman's design is effectively disturbing.

Cultural Context

Arago uses London the way certain Japanese supernatural action manga use settings outside Japan — as a backdrop for mythology that feels different from Japanese supernatural tradition while remaining accessible. The series draws on general European supernatural conventions rather than specifically British ones, which makes it broadly accessible without deep cultural specificity.

What I Love About It

The arm dynamic. Arago using Seth's arm means that Seth's power and, occasionally, Seth's emotional responses influence what the arm does. The series is not consistent about this — sometimes it's purely mechanical, sometimes it carries personality — but the idea of carrying your dead sibling's capacity for violence and using it in his memory is genuinely interesting.

What English-Speaking Fans Say

Western readers describe Arago as a solid short-form supernatural action manga — nothing exceptional, but reliable and complete. The London setting is appreciated as a change from Japan-based supernatural action. The series is recommended for readers who want something to fill the gap between longer commitments.

Memorable Scene ⚠️ Spoiler Warning

The first time Arago's arm acts independently of his conscious control — responds to a threat with Seth's fighting instincts rather than Arago's own — is the series' best deployment of its central premise, and briefly makes the arm feel like a genuine presence rather than a plot device.

Similar Manga

• Blue Exorcist — Supernatural entity within the protagonist, London-adjacent setting
• Pandora Hearts — Supernatural mystery with London-esque setting
• D.Gray-man — Supernatural weapon attached to protagonist, similar structure
• ARMS — Same premise name, different execution, similar body-weapon dynamic

Reading Order / Where to Start

Volume 1 — Seth's death, the arm, and Arago's first encounter with the London supernatural police.

Official English Translation Status

Viz Media published the complete 10-volume English edition. All volumes available.

Pros & Cons

Pros

• The London setting is used with genuine visual specificity
• The brother's arm premise is emotionally interesting
• Ten volumes with clear beginning and end
• Consistent action-mystery hybrid throughout

Cons

• The plot follows supernatural action conventions without significant subversion
• Secondary characters beyond Liv are undercharacterized
• The mythology resolution is adequate rather than impressive

Format Comparison

Format	Notes
Individual Volumes	Viz Media; 10 volumes
Digital	Available

Where to Buy

Get Arago Vol. 1 on Amazon →

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