It's not a bad series, by any means. But what happened in the case of this manga is that the author began with a semi-ridiculous comedy/parody and transformed it into this whole family/school drama that you can't quite take seriously. And all the characters are cliche no matter how you look at it, so the only redeeming factor of this manga is the humor.
It's a bit fluffy, even for my tastes (with all the talk of "justice" and whatnot), and the all the characters (with the possible exception of Dougen) could use a nice smattering of reality into their faces. Or at least, stop trying to act so serious. The plot, which moves at a relatively rapid pace is one part predictable, two parts ridiculous, one part "dramatic." I'm still not sure whether the manga-ka wants the reader to take the so-called drama seriously, but my hunch is that she does, which is a shame. As a whole, the story is put together quite sloppily with what seems like little thought into one sequence of events before plunging into another, sprinkled with cliches and ridiculous yakuza scenes. The balance of drama and comedy (which is I think what she was going for) is poorly executed at best. One minute we have a snapshot of an obviously power-obsessed, reputation-obsessed, and otherwise creepy overbearing family (that is threatening to literally destroy people) and next we have a ridiculous yakuza scene, complete with all the cheesy dialogue.
I really don't know what to say. The way I read it, and the way I recommend people to read it, is lightly. Take all the drama with a grain of salt and laugh it off, because all the situations are so ridiculous. Give the "aww" scenes a little smile and the parody scenes (that can really not be taken any other way) a little chuckle. You do that and this manga is enjoyable.
It's humor. Badly executed at times, and with more drama than many would appreciate in the genre, but it's funny. I gave it a few chuckles, but I'm pretty sure I was just laughing at the ridiculousness of the entire thing, despite the premise being somewhat, and I use the word liberally, original. The cliches the manga-ka threw in are beginning to stack on top of each other, but at least we have a character that is intended to literally be omniscient, the doctor.
My recommendation, to sum it up, is to read it like a comedy. Fast, with little thought, and when you have time to burn. Laugh at the obviously fabricated amounts of drama (it's way too..... far-fetched (that's a nice word) to be real), and enjoy the ittedly ludicrous (and terrible) plotline. And yes, there are actually is one. But it IS funny.
Kind of.