I can say one thing, the developer is digging his own grave.
And I don't know if what I'm about to describe can be considered a virus. In one of the folders there is an interesting EXE file named elevate, and if you search the Internet (or even open it with a debugger), you will come across some very interesting functions.
Elevate.exe - elevates privileges to the desired process using the command line. Why a regular hentai game needs it, I still don't understand. Even regular games ask for permission to make changes. And here is such a strange bullshit, for what purpose the developer did it, will be known only to him.