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OS

For iOS, version 13.0 or higher is required.
For Windows, version 10 or higher is required.
- For Mac OS, the latest version.
For Android, version 7.0 or higher.
*This site is not compatible with tablet devices, Garake (smartphones with a numeric keypad), and Rakuraku smartphones.*

browser

- For iOS, the latest version of Safari
- For Android, the latest version of Google Chrome
・For Windows, the latest version of Microsoft Edge or Google Chrome
- For Mac OS X, the latest version of Safari or Google Chrome

JavaScript

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