Contributed to the rathena/rathena repository by delivering both a targeted user experience enhancement and essential data integrity improvements. Developed a new cut-in visual feature for the Wizard job dialogue, integrating a custom scripting command in GSC to display character sprites during specific NPC interactions, which increased immersion while maintaining a minimal code footprint. Additionally, addressed formatting and naming inconsistencies in text data files, fixing syntax errors and typos to improve data reliability and reduce potential runtime issues. Demonstrated proficiency in game development, scripting, and text asset management, with a focus on maintainable, low-risk changes that streamline quality assurance and player experience.