Honestly, this girl is a rare case of stupid. She never says what she truly thinks, not as a "ghost" or as a normal girl. She then tops it all off with hypocrisy by enforcing rules she doesn't actually believe in, just so she can be a "good student". 75% of the chapters are (so far) about her being a moron... which does not seem especially entertaining to me in the long run.
This series has an interesting concept - why the heck doesn't it do anything with it...?