Korean is confirmed; English, Japanese, Chinese, multilingual signage, and guided translation support are not documented.

• Korean language support is confirmed
• English, Japanese, and Chinese language support not documented
• No multilingual signage information available
• No translated menus or audio guides documented
• Staff language capabilities unknown

Based solely on language_support.korean=true; all other language fields are null. No data on accessibility.audio_guide, multilingual_signage, or translation_menu_available. Cannot confirm English or other foreign-language amenities.