Worked on the LandSandBoat/server project, focusing on improving server-side game logic using C++ and game development skills. Addressed two critical bugs over a two-month period, first enhancing the item removal flow to ensure the correct item slot is hidden even when lookId data is missing, thereby increasing system robustness. Later, implemented stricter party management rules by enforcing a maximum party size and preventing new member additions when summoned trusts are present, which reduced edge-case inconsistencies and improved gameplay stability. The work emphasized careful handling of server logic and contributed to a more reliable and user-friendly multiplayer experience.