Homunculus Review: A Man With a Hole in His Head Who Can See Too Much

Quick Take

• A homeless man who lives in his car agrees to have trepanation (surgical skull drilling) performed by a medical student, and gains the ability to see people's psychological damage manifested as physical hallucinations
• One of manga's most psychologically ambitious works — each person Nakoshi encounters projects their trauma onto their appearance in ways that the manga uses to explore the psychology of modern loneliness
• 15 volumes, complete, extremely unusual

Who Is This Manga For?

• Readers who want psychological horror that prioritizes the psychology over the horror
• Anyone interested in manga that takes Jungian and Freudian concepts seriously as horror material
• Readers who appreciate work that is genuinely strange rather than conventionally scary
• Adults who want manga that addresses trauma, repression, and identity at depth

Content Warnings & Age Rating

Age Rating: M (Mature) Content Warnings: Psychological horror, disturbing imagery (trauma manifested visually), sexual content and themes of sexual trauma, graphic scenes

This is adult psychological horror that addresses trauma directly and sometimes graphically.

Yu's Rating

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

Story Overview

Susumu Nakoshi is a man who has lost everything — his job, his apartment, his sense of self. He lives in his car in a park, suspended between the homeless people sleeping nearby and the office workers walking past. He belongs to neither world.

A medical student named Ito approaches him with a proposal: submit to trepanation — an ancient procedure of drilling a hole in the skull — in exchange for payment. Nakoshi agrees.

After the procedure, he discovers that when he covers one eye, he can see other people's psychological states manifested as physical distortions of their bodies. A man with dominance issues appears massive and monstrous. A woman with severe self-image problems appears in ways that directly reflect her interior view of herself.

Each volume follows Nakoshi working through another person's psychological distortion, which invariably connects to his own suppressed history.

Characters

Nakoshi Susumu — The most psychologically complex protagonist in horror manga. His detachment from his own past, and what is eventually revealed to be behind that detachment, is the manga's central mystery.

Ito — The medical student whose motivations are less benign than they appear; his relationship with Nakoshi becomes increasingly important as the manga progresses.

Art Style

Yamamoto's art is realistic and unsettling — the homunculus manifestations (the physical forms the psychological distortions take) are creative and appropriately wrong in their specific ways. His Tokyo is rendered with the bleakness of someone who has thought seriously about what the city does to the people living in it.

What I Love About It

The concept. The idea that psychological damage makes people literally look different to someone who can see it — that trauma distorts how a person appears — is one of manga's great metaphor-made-literal premises. Each person Nakoshi encounters is a case study in how people carry and hide their damage. It is horror, but it is also a form of empathy practice.

What Nakoshi eventually discovers about his own homunculus is the payoff that the entire manga builds toward, and Yamamoto earns it.

What English-Speaking Fans Say

Homunculus is less known in Western fandom than its quality warrants — it lacks the action or romance elements that drive discovery. Readers who find it tend to rank it among the best psychological manga they have read. A Netflix anime adaptation released in 2021 brought new attention. Western readers praise the psychological depth and the unusual premise.

Memorable Scene ⚠️ Spoiler Warning

Nakoshi's first vision of his own homunculus — seeing himself as others might see his damage, confronting the physical form of his own repression — is the emotional climax of the manga and the moment when the concept becomes genuinely affecting rather than simply clever.

Similar Manga

• Gantz — Same author's more action-focused work
• Monster — Psychological depth, similar character complexity
• Uzumaki — Psychological horror with physical manifestation
• Berserk — Trauma made manifest in fantasy terms

Reading Order / Where to Start

Volume 1. The manga builds cumulative understanding — each case study adds to the central mystery.

Official English Translation Status

VIZ Media published the complete 15-volume series. All volumes available.

Pros & Cons

Pros

• One of manga's most psychologically sophisticated premises
• 15 volumes, complete, fully realized ending
• Each case study is both horror and empathy
• The Nakoshi reveal is genuinely earned

Cons

• Mature content limits the audience significantly
• Some case studies are more compelling than others
• The accessibility barrier is higher than typical horror manga

Format Comparison

Format	Notes
Individual Volumes	Standard VIZ release
Digital	Works well
Physical	Recommended for the art

Where to Buy

Get Homunculus Vol. 1 on Amazon →

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