This started out with at least a half-way interesting idea. Unfortunately, the further it progresses, the more I see how bad it is.
I'll start with the art. Basically its unoriginal and looks like any other manwha, nothing special. On top of this is the fact that everyone practically looks the same, just with different hair and slightly different facial features. The other thing that bugs me is the way the main character is drawn. There is absolutely nothing about her that shows that she is in fact girl, except maybe that it looks like she's always wearing mascara. But seriously, no girl is going to have shoulders that broad, its just unrealistic.
Now the characters. The worst part about the characters is none of them are memorable. Not even the main characters. Sure I know their names, and what they look like, but that's only because I see them more often. I've read 14 chapters and I still don't remember anyone's name. Most of them have no personality either. And the ones that do, have one so obnoxious and idiotic that you would rather them have no personality. Beyond that, the characters just don't act like real people. I can't describe it exactly, it's got mostly to do with the way the react to one another. Also, they are all about as smart as a goldfish. All it takes is a hat and they can't even recognize someone.
Finally, the plot. Or what I suppose is supposed to be a plot. At this point I can't even tell you what the plot is. And its not that the plot is episodic. It's just not there. All the characters do is...stuff. Most of the time they're talking, sometimes they go out to eat, sometimes they get into a fight, but the readers never really get a reason for any of it. It just happens.
So yeah, I started off with high hopes in this story, but so far it's letting me down. I'm going to keep reading it though, just in case something happens that redeems it. But I doubt it.
EDIT: I finally decided to drop this. After 17 chapters I can't take any more. And there's 17 VOLUMES of this mess.