To retrieve lost content, download the patch "mahou.patch" from the Steam forums.
1 Installation method, open the hidden folder of your computer.
2 On disk C, search for the game name "uncleneighbor" and put the mahou file in there.
This is the installation path: C:\Users\Administrator\AppData\LocalLow\GameUncle\UncleNeighbor
The new game is doing beta testing and an update will be announced soon as well as a demo.