Japanese writing practice for intermediate to advanced learners.
Turn the Japanese you can read into Japanese you can write.
Write a short entry each day. Every mistake is marked on your own words, with what to use instead, and you make the fix. The words you’ve studied start to become words you use.
What a marked page looks like.
Set the page up the way you’d write on it: 縦書き or 横書き, ruled or blank.
最近、心が動いた出会いについて書いてください。
Set the page up the way you’d write on it.
Unnatural
起業のことについて
After a noun like 起業, the こと is padding. 「起業について」 is the natural form.
use this起業について
Incorrect
よく分かれなかった
Potential-form confusion: 分かる is already potential in sense, so it never takes 〜れる. You want 「よく分からなかった」.
use this分からなかった
Unnatural
情熱を見て
Grammatical but flat. Being moved by someone's passion is rendered with 触れる: you touch it, you don't watch it.
use this情熱に触れて
Writing is hard when your workflow is scattered.
People often try to keep up a Japanese writing practice by combining AI chatbots and notetaking apps. It works, kind of, but it breaks down in three ways.
1. Every session starts cold.
You copy a prompt from somewhere to ChatGPT, you write about your day in a chat window, and paste it back in a notes app. It works. But it’s so much hassle you give up a few days in.
2. The chat writes it for you.
Paste your paragraph in and it comes back perfect, in words you wouldn’t have reached for. You read it, nod, and none of it stays. Writing the sentence yourself is what makes it stick.
3. Your writing ends up nowhere.
Drafts in a chat thread, a few more in notes, and the corrections buried somewhere above them. Months of work, and nothing you can look back at.
Suikō brings it together, so you can focus on the writing.
Write. Get marked. Fix it yourself. The same way an editor reviews a manuscript.
一 書く
Can’t think of anything to write? Today’s prompt is already on the page, so there’s nothing to set up. A few sentences is enough, or write a longer page when you have more to say. Want to try out new grammar? Turn on grammar ideas for patterns that fit the prompt, from everyday ones to a harder stretch.
二 朱が入る
Every mistake in grammar, particles and word choice is marked in red ink, on the exact words you wrote. Each mark says what’s wrong and what to use instead, and your wording is left alone. It’s built to hold back when it isn’t sure, and if a mark looks wrong to you, you can flag it.
三 直す
You fix the problems yourself and ask it to read the page again. It tells you which fixes worked and which didn’t. Once it’s correct, you can get suggestions for anything that still sounds stiff or translated. When all that’s left is a matter of taste, it tells you to stop so you can move on with your day.
See your writing evolve over time.
Most days the hard part is starting. Once you’ve built the habit, writing becomes a regular part of your study routine.
A year of writing fills a shelf. Months in, you can look back on pages you wrote yourself, with the corrections still in the margins and every version kept exactly as you wrote it. Go back to January and you’ll find sentences you’d write differently now and see how far you’ve come.
今日も一枚。
One page today.
Corrections start with a 7-day free trial — no card, nothing to cancel. After that the writing stays free, and corrections are $9 a month.