Hi everyone,
Though Zendesk's default language set is in Korean,
my colleauge's Zendesk language is English.
1. How can my colleague see the Zendesk language in Korean?
2. Is there a way to set preferred Zendesk lanauge?
*Zendesk language here means: Languges in Zendesk admin account
(Account , people, channel, workspace, etc )
Thank you for your input!

every Agent can set the language in their profile.
More details can be found in the following article:
How can I change the language in Support for my agents?
The language of the Account can be set in the Admin Center.
Here you can read more about Adding multiple languages to Zendesk Support.