Ensure you have the latest DirectX End-User Runtimes installed if the game fails to launch.
Ensure you extract the entire folder before running the .exe . Running it from inside the zip often causes "File Not Found" errors for assets. SavingSisterPartOne.1.5.3-win32-x64.zip
Progress is determined by dialogue choices that impact your "Relationship Points" with various characters. Ensure you have the latest DirectX End-User Runtimes
As a "Part One" release, this usually covers the introductory chapters, establishing the protagonist's relationship with their sister and the central conflict (often involving a rescue mission or a family crisis). Key Gameplay Features this usually covers the introductory chapters