Hey so uh. I kinda accidentally probably overrode the save data folder location. To make it easier to upgrade and downgrade, though, I'll be keeping the new location consistent. That said, depending on which of these you're running...

Windows: 

%APPDATA\RenPy\ "SihaiDatingSim[FREE/INTERN]-1561917752"

Macintosh:

$HOME/Library/RenPy/"SihaiDatingSim[FREE/INTERN]-1561917752"

Linux: 

$HOME/.renpy/"SihaiDatingSim[FREE/INTERN]-1561917752" 

Find that folder and move its contents into the 

"SihaiDatingSimR-1561917752" folder

If you do that, you should have your saves from the last version intact.

I've only received word of the saves being wiped from one source so far, but I'm pretty sure it should be happening to the free build as well. If your saves from last build are still intact, then... I guess I messed up even earlier so it's ok?

In any case, if this is happening to you, please follow the above directions if you want to keep your saves. I apologize for the inconvenience, this won't happen again.