Ensure you have extracted the entire folder. If the game fails to launch, check that your antivirus hasn't quarantined the .exe file.
Match with characters, engage in dialogue, and successfully ask them out on dates. Guide to Progressing & Achievements FurstDate-Final.7z
Since the file is a .7z archive, you will need a third-party tool to access the game contents. Ensure you have extracted the entire folder