Korean is supported; English and other foreign languages are not confirmed.

• Korean is the primary language of operation
• No English menu or signage confirmed
• No multilingual staff support documented
• No audio guides or alternative language accessibility features available
• Translation services not mentioned in available information

Based on language_support field which confirms only korean=true; all other language fields (english, japanese, chinese_simplified, chinese_traditional, multilingual_signage, translation_menu_available) are null. No accessibility guides (audio_guide, sign_language_guide) are available. Answer reflects confirmed absence of foreign-language support but acknowledges we cannot definitively rule out some staff capability.