Worked on the rathena/rathena repository to address a critical memory management issue in the game’s status change subsystem. Focused on debugging and C++ development, the work involved removing redundant status_change_init calls from multiple initialization paths, ensuring that status change data was initialized only once for all relevant game entities. This approach reduced memory usage, minimized the risk of leaks during extended sessions, and improved runtime stability under high concurrency. The solution centralized initialization logic, streamlined code maintainability, and provided clear documentation for future enhancements. The contribution demonstrated strong skills in debugging, game development, and disciplined use of version control.