During March 2025, Why8575 developed a currency conversion feature for the STD-INFO-COMPUTING-WEB-2024-12-25/06_JAVA repository, focusing on converting Korean Won to Euro. They designed and implemented the Won2Euro class in Java, applying object-oriented programming principles to encapsulate conversion logic and manage updated exchange rates. The solution included explicit handling of source and destination currency metadata, ensuring accurate calculations and traceability for financial workflows. By delivering this feature in a single, well-documented commit, Why8575 laid the foundation for future multi-currency support and Euro-denominated reporting, demonstrating depth in both technical execution and attention to maintainable code structure.