The artwork and characters are awesome, 10/10.
The narrative or plot is terrible. This is a collection of subplots without any focus on a main story. The closest we get to a plot is: who will Narumi end up with? Will she find love? But few of these subplots actually give us a satisfactory conclusion.
The ecchi, which is quite lewd in the beginning and promises great fan service, disappears halfway through. It's like they changed it into a family and children's manga halfway through and we never got the fan service present in the first couple of chapters. Did the lack of fan service lead to a decline in readers and the cancellation of the series?
Another reviewer states that the mangaka had hoped for another 20 chapters, and maybe that is the problem. Perhaps it was canceled due to declining readership. So the story, like the fan service, fizzles out and disappears. And the art and characters, worthy of a better (or finished?) manga, end up being wasted.
