Real-time Create ExposureJapanese Growth 100x

Japanese mastery requires more exposure! We integrate high-frequency vocabulary into content you already love, transforming your daily English media into Japanese learning opportunities.

0
Study Time
90%
Stress Reduction
4.95
Google Rating
2000+
Active Users

Real-time ExposureJapanese Growth 100x

Boost Japanese through daily content exposure, integrating vocabulary naturally as you browse.

0
Study Time
90%
Stress Reduction
4.95
Google Rating
2000+
Active Users

RiesIs Different

We don't offer any language learning courses

Integrated Into Every Article and Video You Watch

We explore the content scenarios you're viewing and create appropriate Japanese exposure in real-time. This is truly a treasure you haven't realized.

AI Transforms Your Content, Creating Japanese Exposure

AI analyzes your content and selects appropriate transformation methods, from words to phrases, from short sentences to long sentences, continuously creating extensive exposure, letting you unconsciously acquire Japanese.

Especially the Large Volume of English Content You're Viewing

You read over 20,000 words of English content daily, but less than 1% exposes you to Japanese. For every 1% we increase, it's equivalent to taking 10 additional Japanese classes.

Pressure Control That Understands You

AI will adjust exposure difficulty and transformation methods based on your language map, ensuring you can both easily understand and gradually improve, creating 100x pressure-free Japanese exposure.

HowRies Works

Seamlessly supports your favorite websites and applications

YouTube
YouTube
Twitter
Twitter
Google
Google
CNN
CNN
Reddit
Reddit
BBC
BBC
Medium
Medium
TechCrunch
TechCrunch
SubStack
SubStack
NYTimes
NYTimes
YouTube
YouTube
Twitter
Twitter
Google
Google
CNN
CNN
Reddit
Reddit
BBC
BBC
Medium
Medium
TechCrunch
TechCrunch
SubStack
SubStack
NYTimes
NYTimes

Transform English Webpages

Transform English Videos

Transform Japanese Videos

Transform Japanese Webpages

Transform English Webpages

Hear WhatOthers Say

Real feedback is most valuable

Lee M.
Zhang T.
Wang H.
Lin R.
Zhao J.
Wu S.
1800+Japanese Learners

Break language barriers, join the learning revolution

Lee M.
Lee M.

"Never thought browsing the web could teach me Japanese! Seeing Japanese words in English news felt strange at first, but now it feels incredibly natural with zero learning pressure..."

December 8, 2024
Lin R.
Lin R.

"Japanese always made me anxious - memorizing vocabulary was painful. This extension is completely different. It integrates Japanese into content I actually enjoy without rote memorization. With enough exposure, it just clicks!"

January 29, 2025
Chen Y.
Chen Y.

"It's just...really magical? Japanese words and phrases appear when I'm reading novels or browsing social media. At first I thought it was a bug, then realized this IS the learning method! I'm unconsciously increasing my Japanese exposure every day."

March 23, 2025
Zhang T.
Zhang T.

"I used to force myself to watch Japanese videos but couldn't stick with it. Now it's completely different - I learn Japanese vocabulary while watching English videos. I remember words without even trying!"

December 27, 2024
Zhao J.
Zhao J.

"As a programmer, Japanese documentation was such a headache. Ries changed my experience by gradually replacing familiar English content with Japanese. The progressive approach removed anxiety and dramatically increased my exposure."

February 12, 2025
Yang L.
Yang L.

"Doesn't feel like learning at all, yet my Japanese is improving. Recently I noticed I already know words in Japanese articles that I used to look up...all accumulated from daily exposure."

April 9, 2025
Wang H.
Wang H.

"Love that I don't need to deliberately study. Just normal web browsing, with AI occasionally replacing words with Japanese. By the end of the day, I've been exposed to so much Japanese with zero pressure."

January 15, 2025
Wu S.
Wu S.

"My child always resisted learning Japanese. Since using this, I discovered he's learning vocabulary while watching YouTube! No more forcing him to take classes - natural exposure means faster improvement."

March 4, 2025
Liu Y.
Liu Y.

"Traditional Japanese learning was painful! Ries doesn't require extra time - it transforms my regular web browsing to increase Japanese exposure. Perfect for lazy people like me, haha! Improvement without even noticing."

April 28, 2025

The Boundary Expansion Method by Ries Creator

边界拓宽法

My Boundary Expansion Method First Principles

This method's foundation is based on the 'slightly above language level' concept from Comprehensible Input, using big data to model your personalized language comprehension boundaries, understanding what you do and don't recognize in the language.
Then, through powerful AI models in your daily content consumption scenarios, we transform your language exposure environment, continuously creating comprehensible Japanese exposure, controlling the pressure, and naturally expanding your language boundaries.
The benefit of this method is: turning content you want to consume into the best learning resources
  • Whether you're viewing English or Japanese, studying or being entertained, you'll continuously be exposed to Japanese.
  • We create comprehensible Japanese exposure at your language boundary, helping you continuously expand it.
  • We control language exposure pressure, reducing the influx of too many new words, using continuous exposure instead of cramming, truly achieving steady progress.

What is Comprehensible Input?

Comprehensible Input is a second language acquisition theory proposed in 1985 by UCLA linguist Stephen Krashen, validated through decades of linguistic research and practice.
His core concept is that language learners need exposure to input slightly above their current language level to facilitate language acquisition.
Based on Harvard's Comprehensible Input Theory

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