I have a slightly different problem from the usual "can't save" problem. I'm perfectly able to save, however i can't find the folder anywhere.
I tried in Documents of course, in appdata in both roaming and local. Don't know where the game is keeping the save files.
I installed the game in D: while the system is in C: but the same thing happened in the first Majikoi game and i can access the save files without problem.