Suikō

Japanese writing practice for intermediate to advanced learners.

Get better at expressing yourself in Japanese.

Write regularly, get targeted feedback on your own words, and make every correction yourself.

Write your first page

Corrections: a 7-day free trial, no card needed, then $9 a month. Writing is always free.

What a marked page looks like.

Set the page up the way you’d write on it: or , ruled or blank.

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Set the page up the way you’d write on it.

Unnatural

After a noun like 起業, the こと is padding. 「起業について」 is the natural form.

use this

Incorrect

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

Unnatural

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

Every note points at something you actually wrote and tells you what to use instead. Your writing is left exactly as you typed it.

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.

  1. The day’s writing 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. Optional grammar ideas range from everyday patterns to a harder stretch.

  2. Every problem is marked in red ink, on the exact words you wrote. Instead of getting a corrected version of your page, you get in-line feedback telling you which word, particle or pattern to use instead.

  3. You fix the problems yourself and ask it to read the page again. It tells you which fixes worked and which didn’t. Once 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.

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.