This is a fun little time-waster. Lots of grinding, and after a while you also have to take a fair amount of time for inventory management.
I do have one question. Later in the game, fighting the the 8-strong lich tactical army, there is one character that ends up freezing the game: NaN (as in, N/A), who seems to be a bit of a glitchy NPC. Since it's an NaNa, it doesn't move when it's its turn, which freezes the game. Other than avoiding that tactical battle for the foreseeable future, is there any other way around this?