Worked on the CCC-Server/CCC-Database repository to enhance card game logic and data reliability. Addressed a core gameplay issue by refining the effect logic for Eternal Aftermath’s Pendant, ensuring the card’s search and targeting mechanism excluded invalid targets such as Level 9+ and Spell/Trap cards, and prevented improper summoning interactions. Updated the binary database asset for Yeontan Hwan to maintain data accuracy without altering scripts, supporting consistent gameplay experiences. Leveraged Lua scripting and game scripting skills to deliver both a targeted bug fix and a data asset update, focusing on stability and integrity for upcoming releases within the project.