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

• Service language: Korean only (confirmed)
• English language support: not confirmed
• Japanese and Chinese language support: not confirmed
• Multilingual signage: not documented
• Translation menus or audio guides: not available

Based on language_support field showing korean=true and all other language fields null. No data available for multilingual_signage, translation_menu_available, audio_guide, or sign_language_guide. Answer reflects absence of documented foreign-language support.