Korean language only; no confirmed English, Japanese, or Chinese support or multilingual signage.

• Korean is the confirmed language of operation
• No English, Japanese, or Chinese-language support documented
• No multilingual signage or translation menus confirmed
• Staff language capabilities beyond Korean are not listed
• Audio guides, sign language, or other accessibility language aids are not available

Based on language_support object (korean=true; english, japanese, chinese_simplified, chinese_traditional, multilingual_signage, and translation_menu_available all null). No accessibility language aids (audio_guide, sign_language_guide) are documented. The answer reflects the absence of documented foreign-language resources.