During June 2025, ttangu5510 focused on enhancing system design governance and gameplay documentation for the Project_SkyPower repository. They delivered two documentation-driven features, including comprehensive system planning updates and detailed skill and gameplay design documentation. Their approach centralized planning artifacts such as Excel sheets, asset lists, and data tables, streamlining cross-team collaboration and onboarding. Using XML and diagramming tools, ttangu5510 structured multilingual documentation, including Korean entries, to support diverse contributors. While no bugs were fixed during this period, their disciplined project management and documentation work established a clear baseline for future development, emphasizing clarity and maintainability in the project’s technical foundation.