Story: 7
The story is not bad. However, it's not a story that you can consider as something that will stand out. Throughout the story uses the cliche: Childhood friend x MC x Popular Women while adding a supernatural element to make it different.
Some of the playful scenes of Makura were hilarious while Yuki's teasing scenes were spicy at first but they died down too fast. There is comedy in it but a comedy that does not standout that much.
The pacing is slow, the portrayal gave off a sad feel and the ending was sudden but it was still enjoyable.

Art: 7
The art is good but not outstanding. The lines are drawn clearly and you can't find any confusing pages to read. Personally I love Hotaru's character design.

Character: 7
Both Keisuke and Yuki can be considered as "run of the mill" characters. Makura can be considered as above average but not outstanding. In any case, giving consideration that IT IS a shounen/ecchi manga, there were no characters that can be considered overly annoying.

Enjoyment: 7
The series started off nice but the as the story progressed it gradually went down with a few plot twists. It had potential to be better if only the supernatural aspect was utilized more. With all that said it was enjoyable nonetheless.

Overall: 7
It's not that bad and it's not that good. I suggest reading this as entry level to Supernatural Romance manga, a "pacifier manga" while waiting for your main manga releases or as something to just read for a few hours.
If you enjoy short but not one-shot mangas or anthologies then you'll definitely enjoy this.

Comments:
I really would have loved it if it were given an extra 24 chapters!