When you right-click and "Extract" the first part, the software (like WinRAR or 7-Zip) automatically pulls data from all subsequent parts (including your Part 4) to recreate the complete game.
If you're interested in the , I can explain how the stat-building system affects which story paths you can unlock. Or, if you're having trouble extracting the file , let me know what error you're seeing! Love_and_Sex_Second_Base-23.2.0-pc.part4.rar
: You cannot run this file by itself. To see the story, you must have all parts in the same folder. When you right-click and "Extract" the first part,