We first visualized the overall UX flow of the service and conducted experience design considering user behavior patterns, psychological changes, and operational workflows. Based on this, we planned and implemented key features such as video calls, recommendation logic, and compatibility diagnosis functions to enhance matching accuracy and user engagement. We also focused on consistent UI design between the web and the app, pursuing optimization in a cross-platform technical aspect. Furthermore, we worked closely with the client's operational staff to concurrently advance the design of operational procedures such as inquiry responses and user review flows. Even after development, we consistently support ongoing feature improvements, server maintenance, and fault responses, contributing to the stable operation of the service.