A kinder way to learn Japanese

Learn Japanese.
Live the story.

Step into interactive Aibo adventures, read Japanese in context and choose what happens next. Then make new words yours through practice.

Start learning free Try a story scene

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No credit card
At your own pace

Artwork from Kokoro's Japanese story world

Aibo Adventures

Words mean more
when they're part of a story.

Don't just read about Kokoro. Try a scene from your first day at Sakura School — point to a highlighted word and discover what it means.

Read with support
Use translations and vocabulary hints as you follow the scene.
Make a choice
Answer in Japanese and see the characters react.
Keep practising
Add dictionary words you discover to your learning vocabulary.

Begin your first adventure

An illustrated hallway at Sakura School — Real dialogue and the same word hints as the story player. This short preview doesn't save learning progress.

Yuki, an Aibo companion — Real dialogue and the same word hints as the story player. This short preview doesn't save learning progress.

From a scene to your vocabulary

Find the word.
Make it yours.

Look up Japanese by kanji, kana or meaning. Keep useful words in your learning vocabulary and organise them into collections — ready for flash cards and quizzes.

1
Look it up
Try the search here. The Japanese, reading and meaning stay together.
2
Keep what matters
In your account, save words and group them into your own collections.
3
Put it into practice
Use your vocabulary in focused flash-card and quiz sessions.

Build my vocabulary

Dictionary

Search sample · 6 N5 words

6 sample words

School

Classroom

friend

name

new

Dictionary

A small selection from Kokoro's dictionary. Sign up for the full catalog, personal vocabulary and collections.

Your learning, in one place

A little direction.
A visible step forward.

Home brings your next activities, XP, vocabulary and story progress together. Pick something small, keep going and see what you've learned.

Home

Your Japanese journey

Example profile · illustrative progress

▣

Today's plan

0/4 done

▷ Read your first episode First Day at School 8 min 語 Discover new words Try the dictionary preview N5 あ Practise hiragana Build your reading confidence Kana ✎ Test what you remember Vocabulary quiz Quiz

▥

Your progress

Start yours →

Level 2 13 / 17 XP

🔥3day streak

語5words today

▥7%active story

Small steps every day lead to big progress.

These are the same plan and progress components you'll find in Home. This example isn't your personal data; your account starts with your own progress.

Start my learning journey

Stories, words and practice

Start with a story.
Build the skills to read it.

Discover Japanese in context, keep the words that matter to you and reinforce them with focused practice.

Aibo Adventures

Read Japanese in context

Follow interactive scenes, use translations and vocabulary hints, and choose your replies.

Explore story learning

Dictionary & Collections

Build your own vocabulary

Look up words, add them to your learning vocabulary and organise them into collections.

Try the dictionary

Flash Cards & Quizzes

Turn new words into practice

Revisit your vocabulary with flash cards and test what you remember in quizzes.

Kana & Kanji

Learn the Japanese writing systems

Explore hiragana, katakana and kanji, then practise with dedicated quizzes.

Your companion

Meet your Aibo.

Choose Yuki or Ren to accompany your Japanese learning journey. You can change your choice later in Settings.

Yuki 雪

A gentle presence for your next adventure.

Ren 蓮

A spirited companion for the journey ahead.

Find your companion

Made with heart

Make room for learning.
Leave the distractions behind.

Free to learn

Get started without a subscription or credit card.

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Your stories and practice stay focused on Japanese.

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Read our Privacy Policy and Terms of Use before joining.

Your next chapter starts here

A story. A few new words.
A little progress every day.

Meet your Aibo and begin your Japanese journey with Kokoro.

Start learning free

Already learning with us? Sign in

Learn Japanese.Live the story.

Words mean morewhen they're part of a story.

Read with support

Make a choice

Keep practising

Find the word.Make it yours.

Look it up

Keep what matters

Put it into practice

A little direction.A visible step forward.

Start with a story.Build the skills to read it.