Is Moyasimon Worth Reading? Review & Where to Read

Quick Answer
Yes, if you can track down a copy — which is the catch. It's a smart, funny, well-researched comedy, but English publishers only ever put out 2 of its 13 volumes before dropping it.
Quick Verdict
“Real science backs every joke here, but the English release quits two volumes into a thirteen-volume story and undercuts the whole thing.”
Best for: Readers who like their comedy paired with real information, and who don't mind doing some legwork to find older out-of-print volumes.
Not for: Readers who want a complete reading experience in English without hunting down secondhand books.
- Type
- Manga
- Genres
- Slice of Life, Comedy
- Status
- Completed
- This review
- Minor Spoilers
- Author
- Masayuki Ishikawa
- Publisher
- Del Rey Manga / Kodansha USA
- Platform
- Del Rey Manga
| Quick facts | |
|---|---|
| Format | Manga (seinen), 159 chapters, 13 volumes |
| Run | 2004–2014 · completed |
| Community score | AniList 7.1 |
Overview
Tadayasu Sawaki shows up to his first day at agricultural university with a strange ability: he can see microorganisms, rendered as small, expressive cartoon blobs only he can perceive, and talk to them directly. Moyasimon builds an entire comedy around that one gimmick, following Sawaki and his classmates through campus life while using his ability as a teaching tool for real fermentation science — how sake gets brewed, how cheese forms, how mold starter actually works.
It's a seinen comedy first, but the science is not decoration. Ishikawa did real research, and chapters will stop to explain a fermentation process in enough detail that you come away having actually learned something, before snapping back to campus-life jokes and a growing cast of oddball students and faculty.
What it does well
The central idea earns its reputation. Turning invisible microorganisms into visible, personality-having characters is a smart solution to a hard problem — how do you make a comedy about bacteria readable — and it mostly works because the science underneath is accurate and genuinely interesting, not just a backdrop for gags.
The human cast keeps it from feeling like an educational pamphlet. Sawaki's rivalry and friendship with Kei, the sake-brewing professor who already knows his secret, and the rotating dorm-mates all give the fermentation lessons a reason to exist beyond "here's a fact." The series also earned real critical respect for this balance — a Tezuka Osamu Cultural Prize and a Kodansha Manga Award aren't handed out to comedies that don't take their subject seriously.
It's also just a well-executed example of a niche done right. If you've ever wondered how fermented food actually works, this explains it more clearly, and with more personality, than most non-fiction on the subject.
Where it falls short
The elephant in the room is availability. English publisher Del Rey Manga released volumes 1 and 2, then its manga catalog was folded into Kodansha USA and Moyasimon was simply never continued. There's no official way to read volumes 3 through 13 in English, which makes recommending a thirteen-volume series feel strange when only two volumes are legitimately gettable.
Even within what's available, the pacing is uneven. Some chapters commit so hard to a fermentation lecture that the plot and character beats just wait on the sidelines until the science lesson wraps up. And a few of the comedy side characters — a male student who dresses in Gothic Lolita fashion for laughs, a professor coded as a dominatrix — lean on broad anime-comedy shorthand that hasn't aged particularly well.
Verdict
As a comedy with real science behind it, Moyasimon earns the praise it got — it's smart, it's funny when it wants to be, and it actually teaches you something. The problem isn't the manga, it's the English publishing history: track down the two translated volumes if you can find them, know going in you'll likely hit a wall there, and decide if that's worth it for a taste of something genuinely well-made.
Strengths & Weaknesses
Strengths
- The core gimmick — seeing bacteria, mold, and yeast as small, expressive cartoon creatures — is a genuinely clever way to make microbiology visual and funny instead of just didactic.
- The series backs its jokes with real science: how sake, cheese, and other fermented foods actually get made, explained clearly enough that you walk away having learned something real.
- The campus cast gives the science a human frame — rivalries, crushes, and dorm-life chaos keep the info-dumps from feeling like a textbook with pictures.
- It won real recognition for this balance, including the Tezuka Osamu Cultural Prize and a Kodansha Manga Award, which isn't common for a comedy built around fermentation science.
Weaknesses
- The English release stalled at volume 2 of 13 after the original publisher's manga line was absorbed elsewhere, and it was never picked back up — so most readers in English can't finish the story through official means at all.
- The science explanations sometimes take over a chapter so completely that the plot and character comedy stall out waiting for them to finish.
- A handful of side-character gags (Gothic Lolita fashion worn for laughs, a dominatrix-coded professor) lean on broad, dated anime-comedy shorthand rather than earning the laugh on their own.
Similar Titles
another long-running Japanese comic that uses a hook — here, competitive cooking — to teach real food science and history.
a gentler, more plot-driven agricultural-school comedy for readers who want less microbiology lecture and more coming-of-age story.
a much broader, faster comedy if you want the laughs without the homework.
Prefer to watch? There's an anime
Moyashimon: see where to stream it legally, plus episode guides and trailers, on Watchanimee.
Frequently Asked Questions
Can I actually finish this series in English?
Not through an official release. Del Rey Manga published volumes 1 and 2, then its manga line was absorbed into Kodansha USA and Moyasimon was never continued. The remaining 11 volumes have no official English translation.
Do I need a science background to follow it?
No. It explains fermentation and microbiology from the ground up through Sawaki's ability to see and talk to the organisms, so no prior knowledge is assumed.
Is this appropriate for all ages?
It's a seinen comedy aimed at adult readers — university-age cast, drinking-culture jokes, and some broad fan-service gags, though nothing explicit.

