If this refers to a visual novel or a creative project, please check the following common locations for such files:

Right-click the .rar file and choose "Extract Here" or "Extract to [Folder Name]".

Often listed in the creator's bio. General Guide for Handling RAR/Visual Novel Files

Open the extracted folder and look for an application file (e.g., OneWeekHebe.exe or Game.exe ). Run the Game: Double-click the executable to start. If you can confirm:

"One Week Hebe" is (e.g., visual novel, game, story)?

you originally saw it mentioned (a specific forum, Twitter/X, Discord)?