How do I connect external accounts? (Google)
You can connect Google accounts through Connect External Account at My Info page.
1. Access 'My Info' page at the top right of the website
2. Access 'Edit account info' menu in the category on the left
3. Select an account that you would like to connect in the Connect External Account (Google)
※ If you are logged in to Google, the connection will be completed without a separate verification process.