This manga is the textbook definition of wasted potential. I don't think that there is anything awful about the manga - in fact, I did enjoy the ride. But it could have been so much better if the author was able to spend more time on it. (SPOILERS FOR THE FIRST 2 CH)
First, I believe that the manga as a whole has a great premise. A loner living in an apartment with thin walls, and a NEET girl living next to him. Right off the bad, there is tons of potential to form a really great bond between the two. Unfortunately that's where this manga fell short. They conversations they have only go a bit deeper than surface level. Manga like these, where dialogue between two characters are the sole driver of a story, need to have deeper topics, better development, and heart-tugging exchanges. If this is able to happen, the rating of the manga would increase by far. I do think the author made a great atmosphere in the apartment as a whole, but beyond that it was lacking. The side characters, besides Inaba, have practically no development and the art is bland.
I know that this is a harsh review but I do believe that the author is new and has potential.
6/10