Ah, it being PA actually makes a lot more sense (I did read the LN up to and including vol 8 when it was the latest released but I really didn't remember that bit). It explains why he almost referred to himself as "Supreme Being" on page 16 as well as his oddly passive aggressive stance towards...
The thing I probably hated the most, when watching the anime back then, was the reveal of that hamsters voice.
For reference, I expected something along the lines of the Butt Genie from Dick Figures (seriously, look it up).