Notebooks

Midori MD Notebook vs. Kokuyo Campus: The Two Kinds of 'Good' Japanese Paper

By Sen, from a desk in Tokyo · Updated August 12, 2026

Ask a stationery forum which Japanese notebook to buy and you’ll get two completely different answers, and both of them are right. One camp will tell you Midori’s MD Notebook, imported at $11 to $14 a piece, is the only paper worth writing on. The other camp will hand you a Kokuyo Campus notebook that costs about $1.50. Nobody in Japan actually argues about this, because we use both — for different jobs, on the same desk, in the same week.

The short answer: if the notebook is going to get used up — meeting notes, to-do lists, a draft you’ll throw away in a month — buy the Kokuyo Campus. If it’s a notebook you’ll keep, write slowly in, or use with a fountain pen, buy the Midori MD. Below is why, and the $12 notebook I bought that taught me the difference the expensive way.

Why these two, specifically

Japan doesn’t really have a “best notebook” the way English-language stationery blogs frame it. It has infrastructure and it has specialty goods, and conflating the two is the single most common mistake in import reviews.

Kokuyo Campus is infrastructure. It launched in 1975, and by the time it hit its 50th anniversary in 2025, Kokuyo had sold more than 3.7 billion of them — not a typo, billion with a b. Every convenience store, every supermarket stationery aisle, every school supply list in the country carries it. It’s the notebook Japanese kids grow up filling for school and the one still sitting in the supply cabinet of every office I’ve worked in.

Midori’s MD Notebook is the opposite kind of product. Midori started in 1950 making letter paper and envelopes, not notebooks for the masses — the company (now called Designphil, though it kept the Midori brand name) has been refining its own “MD Paper” since the 1960s specifically for people who care what a page feels like under a nib. You find it in stationery boutiques and department stores, never in a convenience store rack. A single A5 MD Notebook has a suggested retail price of ¥990 in Japan — nearly five times a basic Campus notebook — and people buy it anyway, on purpose, because it’s doing a different job.

That’s the whole story in one line: Campus is what Japan writes with; MD is what Japan writes in, when the writing is meant to last.

What actually differs on the page

The comparison table stationery sites publish is usually about specs. The one that matters is about behavior.

Fountain pen ink is the whole reason this table isn’t just marketing copy. Campus paper is optimized for speed and cost, not ink absorption — write with a wet fountain pen and you’ll get feathering and some ghosting on the back of the page. It’s not a defect; a ¥220 notebook was never built for that pen. MD paper was built for exactly that scenario, which is also the reason Tomoe River paper — the famously thin sheet inside the Hobonichi Techo — gets compared to it constantly, even though the two are made differently and feel different in the hand.

The failure mode runs the other way too. MD’s sewn binding is genuinely lovely, but it means the notebook doesn’t like being crammed flat into a bag pocket the way a wire-bound Campus does, and at four to five times the price, losing one in a commute stings more.

The $12 notebook that taught me this

A colleague recommended an imported “premium” ruled notebook a few years back — not MD, a different Western brand riding the same wave — and I bought it expecting it to replace whatever I was scribbling meeting notes in. It didn’t. The ruling was too heavy, the cover too precious to actually beat up at a standing desk, and I found myself protecting the notebook instead of using it. It’s still in my desk drawer, maybe four pages in.

Meanwhile the notebook that’s actually followed me from cram school through every job since is the same one: a Kokuyo Campus, B5, dot-ruled. Cram school in Japan runs through evenings and weekends on top of regular school, and every student shows up with a stack of these because they’re cheap enough to fill three a week without thinking about it. That habit never left. My work notes today are the same notebook, the same ruling, bought in packs of five.

I do keep one MD Notebook going at a time — a slow, personal one, closer to a journal than a planner. It’s the one place I’ve stopped feeling bad about writing slowly.

An honest opinion, since blogs like this usually won’t give you one

Don’t buy the MD Notebook for work meeting notes. It’s genuinely too nice for that use case, and the ruling options are more limited than Campus if you want dot-grid bullet-journal layouts — Campus wins on ruling variety, full stop. And don’t assume the cheap notebook means a lesser one: Kokuyo didn’t sell 3.7 billion units by accident, and there’s a real Japanese respect for getting a disposable object exactly right, a mindset closer to monozukuri — the craft pride put into making even ordinary things well — than to “cheap.”

How to actually buy

• For daily work notes, planning, or anything disposable: Kokuyo Campus, B5 if you want desk-sized pages or A5/B6 if it needs to fit in a bag. Get the dot-ruled version (“ドット入り”) if you want flexible layouts without full grid clutter.
• For a personal journal, sketchbook, or fountain pen writing: Midori MD Notebook, A5 for a proper desk journal or A6 if it needs to travel light. Blank paper if you want freedom, grid if you want structure without lines dictating your handwriting.
• Don’t buy both expecting to replace one with the other. They’re not competing for the same job. That’s the whole point of this article.

If you’ve only ever used one notebook brand for everything, that’s the gap worth closing — not by upgrading, but by having the right cheap thing and the right good thing on the same shelf. It’s a small, unglamorous rule, and it’s exactly how the pens on this site get chosen too: not by price, by fit. Start with a Campus notebook for the notes you’ll forget and a decent everyday pen to fill it, and let the MD Notebook wait until you have something you actually want to keep.