It's not as bad as you expect based off the title. It's exactly what it says based off the title. The MC is the only guy in an all boys school and everyone else is a girl who thinks they are the only girl. It is a fast read and had some actual funny parts to it. It is pretty tame and not ecchi really at all except one cover which has them in swimsuits. The art is fine and the characters are a little cliche but it's not a reason to avoid it. It sadly got axed and the ending is pretty unsatisfying but I understand whyit stopped being published.

I say give it a shot if it peaked your interest.