Worked on the UPKK_ZE_PUBLIC repository to enhance the reliability of game data by refining the Black Mage trigger logic for the Great Gubal Library encounter. Focused on a targeted bug fix, the work involved updating JSON configuration files to correct trigger conditions, which reduced user-facing misfires and improved overall data accuracy. Applied configuration management best practices and maintained strong version-control discipline, ensuring clear traceability for future audits and development. No new features were introduced during this period, with efforts concentrated on stabilizing critical data assets and minimizing potential support issues through precise, maintainable changes using JSON and configuration management techniques.