Like badkitty and amilah said, it's the typical girl swooning over the moody jerk type story. The narrative of this is nearly identical to all of this mangaka's works. Innocent girl starts to fall for the moody "black hair-kun" nice blonde guy enters the picture, girl spends the rest of the manga crying over the the former guy. groan
At first I was impressed w/ the fact that Neiro seemed strong in will and body, but after her incident w/ Shin she turns into a whimpering little girl who can't get over her first crush. Also I don't like the way she treats Tokio. She treats him like a consolation prize and when Tokio doesn't act like a complete moron and starts to question Neiro about this, Neiro does what she does throughout the whole story, starts to cry and beg. Yet, after all this, she still continues to fawn over Shin (wth). Finally, what's up w/ everyone letting Shin get away w/ acting like a total jerk this whole series. He hurts his best friend out of spite, makes Neiro look like an idiot, and then spends the rest of the series trying (rather openly and aggressively) to get her back.
Still the manga is not w/o it's good points. It's pretty funny at times, and the supporting cast is all interesting. Also, the mangaka does poke fun at some of her own cliches.
EDIT: I read the summaries of all the untranslated chapters, and it doesn't really get any better. It's the same thing over and over. Shin gets aggressive. Neiro wavers. Tokio gets upset. Neiro cries. Repeat ad infinitum. I don't expect Neiro to be some pragmatic cynic, but it's the fact that she doesn't even try to move on. She still lets Shin get the better of her and melts like putty every time he looks her way. While Tokio is just kinda... there. He might as well not even exist as he's only there to remind readers how swell a guy he is (That doesn't really matter if the heroine [his supposed girlfriend] treats him like some sexless shoulder to lean on).
All the cliches can be forgiven if they're used effectively. Unfortunately they aren't here.