Illustration for Nao Iori's Manaka the Human and the Slaughter Robot series
Manga

Manga Plus Adds Manaka the Human and the Slaughter Robot

MANGA Plus recently announced that it has licensed Nao Iori’s Manaka the Human and the Slaughter Robot (Satsuriku Robo to Hito no Manaka) for English release — a fresh Shonen Jump+ title that won the 2022 Serialization Audition and has already begun serialization on Shueisha’s platform. With its contrast of machine-like routine and unexpected emotion, the series is drawing attention for its character-driven sci-fi premise and striking art. Below, we break down what the series is about, why it matters, where to read it, and what fans should look forward to.

What is Manaka the Human and the Slaughter Robot?


Manaka the Human and the Slaughter Robot centers on Yui, a high school student who leads a life of mechanical precision to meet her parents’ expectations. Her orderly existence is disrupted when she meets a fearless girl whose body is part machine — a character who blurs the line between robot and human. The story explores identity, duty, and the evolving relationships between human emotion and technological bodies, promising a blend of intimate character moments and speculative sci-fi concepts.

Plot Snapshot and Main Characters

At its core, the story contrasts two perspectives: the young woman molded by social and familial routine, and the half-robot girl who challenges those constraints simply by existing. The juxtaposition sets up emotional beats that can range from gentle introspection to stark confrontations about what it means to be “human.” Expect slow revelations about the robot girl’s origin, Yui’s internal struggle with expectation, and how their relationship forces both characters to redefine themselves.

Illustration for Nao Iori's Manaka the Human and the Slaughter Robot series
Image via Shonen Jump+’s X/Twitter account

About Nao Iori and the Serialization Audition Win

Nao Iori launched the series on Shueisha’s Shonen Jump+ platform, after winning Shonen Jump+’s Serialization Audition contest in 2022. The contest is designed to discover fresh voices and original concepts that can sustain ongoing serialization — and Manaka’s Grand Prize win speaks to both the story’s distinct premise and Iori’s art and storytelling potential. The win fast-tracked the series into publication, and now MANGA Plus has stepped in to bring an official English release to international readers.


Where and How to Read the English Release

MANGA Plus announced the English license on its official X account; this means international readers can look forward to official English chapters through MANGA Plus platforms. For the latest updates and release timing, check the publisher’s announcement post on X/Twitter (link below). The series also continues to run on Shueisha’s Shonen Jump+ in Japanese, where new chapters are published; the author’s launch post is available on Shonen Jump+’s X account as well.

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Official source links (no-follow): MANGA Plus announcement and Shonen Jump+ post.

Why This Series Stands Out

Several factors make Manaka the Human and the Slaughter Robot an intriguing pick for readers:

  • Character-first sci-fi: Rather than leaning solely on spectacle, the series appears to foreground character dynamics and identity questions — ideal for readers who enjoy emotional depth paired with speculative elements.
  • Visual style: Early pages showcase a clear, expressive art style that balances human emotion with mechanical design, giving the robotic character a unique and memorable look.
  • Fresh voice: As a Serialization Audition winner, Manaka represents a newer creative voice in Shonen Jump+’s lineup — a potential source of surprising twists and experimental storytelling.

Themes and Tone: What to Expect


Expect themes of conformity versus individuality, the nature of personhood, and how relationships can change presumptions about life and duty. The premise also lends itself to ethical and emotional questions: can a being engineered for purpose develop true selfhood? How do people react when someone defies societal templates? While the title hints at darker elements — “slaughter robot” implying violence or conflict — the initial description suggests the narrative will balance intensity with tender interpersonal moments.

Potential Audience

Readers who enjoy introspective sci-fi manga with strong character drama — titles that probe identity and connection — will likely find this series appealing. It could also attract fans of Shonen Jump+ originals that blend heart and concept-driven plots.

What to Watch For in Future Chapters

As more chapters roll out in English via MANGA Plus, watch for how the author deepens the two leads’ relationship, reveals the backstory of the half-robot character, and develops the world around them. Pacing choices (slow-burn character beats versus sudden reveals), art evolution, and how the story balances philosophical questions with plot momentum will be key signals of the series’ staying power.

Final thoughts

Manaka the Human and the Slaughter Robot is a promising entry from Nao Iori that combines emotional character work with sci-fi trappings. Its Serialization Audition win and quick pickup by MANGA Plus suggest strong editorial confidence, and international readers now have a legitimate path to follow the series in English. If you’re curious about thoughtful, character-driven manga that asks what makes someone truly human, this title is worth keeping an eye on as it continues to serialize.