it won't delete every time I delete it and open the game it comes back.
It sounds like you need to delete the AppData file as well.
Save files are backed up to a second directory, so if they're deleted from one they may be restored from the other.
Try deleting both the save file in the install directory you've screenshotted and also from %APPDATA%/RenPy/TNLT-1486410504/
