Hi! If you're talking about the demos, they should have the same save location. And if you mean the Patreon Steam version, you need to move everything from
AppData > Local > Komadori_Inn_0_5_demo
to
AppData > Local > Hotel_Hentai
Please mind that we will do a big update in a bit and it will be better to start the game from the beginning to ensure there won't be any big issues on the way (but at least Steam Achievements will be added :) )