This is a very good combination of romance and supernatural story. The plot itself is quite interesting. Although the development of the love between the hero and the heroine isn't very well made, after reading many volumes, you are really made to believe that the love between the two is true. It is not much of a harem since the hero only has feelings toward one girl, which in my book is a good thing. The action wasn't bad, as there is nothing to complain about. The only thing i have complain about is the jumpiness.This is a very strangely paced manga. Anybody who reads up to volume 7 would realize this. Volume 7 will, and i mean WILL, very much confuse you. You'll be totally lost, asking yourself whether you have skipped a few volumes even though, in reality, you didn't. Actually, even before that, the pace is a bit weird. Ex: the main character gets from point A to point B right away without any signs that indicates that he has just move from one point to another. In fact, after volume 7, the manga still does that frequently, to the point where it stops bothering me altogether. (Later on, i actually expected it to jump). As i was reading volume 7, i thought for sure that this manga won't get anything higher than an 8, no matter how good the rest of it is. After frustrating volume 7, volume 8 will draws you in once more. then the manga will really start picking up the pace. It might be because i read it in one sitting, but i was really drawn in to the manga by volume 11. The ending is very nice, in my opinion. Although this might be quite frustrating to some people,
Every characters had a reason behind their action, and no one was really portrayed as the real bad guy. (everybody turned good)
It almost feel like the manga is childlish, meaning without the tiny bit of ecchi, this manga was made for kids. Despite that, I still like it a lot.
The characters were lovable. The art was very nice. The story was jumpy, yet interesting. The harem and ecchi were almost minimum. The ending was predictable, yet i really loved it somehow.
Overall a very good manga, my only complain was that the manga was probably be better if they had 3-4 more volumes so that it doesn't have to jump so much.
Have no expectation and a lot of patient when you read it, it's a very nice read.
Ps. Daxisheart's comment was a bit exaggerated, but i felt that it was quite accurate.