I'm writing this with only 10 chapters in, the premise of the story is interactions between an Idol and her only fan(she has no other fans)
Concept: 7/10
Unique and so far well executed.
Art: 8/10
Very expressive and clean.
Characters: 7/10
Slightly generic and slightly original but still quite entertaining.
Story: 7/10
Well paced sugar fluff, and the dialogues are a good use of use of words with consistent humor and sometimes extremely funny scenes.
Enjoyment: 7/10
So far so good, no plot holes, nothing to really complain about.
In conclusion you should give this manga a try and see if you like it (most probably you would), the chapters are short but mesmerizing so it shouldn't take much of you time.