--(Perhaps) FREE OF SPOILERS--
Ok. Due to the complexness of the series, i will try to write the review as simple as possible.
Story; 9/10
HakoMari has a really great detail in the story. And it all is logical for me. But the main story is actually simple; about how human being destructed by their own wishes. About how human try to discover their true desire. Then the writer replace the 'human' into all HakoMari character. Then the writer change the 'wishes' into something really elaborate and, of course, deep.
Each volume tells about how the wishes that is usually fill with happines turn up into a dark one. The thriller. Yes, one thing i completely love from the series is the thriller. Thriller in this series also included some psychological. The best thriller in HakoMari maybe is the one from volume 3-4.
The romance is also great. It is not the unexplained and the straight-and-inlogical romance. But the complicated. The romance of the series rely on the character.

Art; 7/10
Not much to explain. Very good, but not enough to fullfiling my desire of this series.

Character; 10/10
The reason i love the series. The character is the one who stir the series. All the character in HakoMari count as a main, but i will only review the two main.
Kazuki Hoshino: Ever watch or read the Durarara! Series? Remember the Mikado, the main character which is completely a common character? Kazuki Hoshino has some similarity with Mikado. A common-looking but actually..!
The difference is that Kazuki love his everyday-live. And, in each volume, he go trough a great complex development, which caused by the character named;
Maria Otonashi; Complexness and deepness (and charm) overload. Best-developing heroines in all novels I read.

Enjoyment; 10/10
Finish first volume in one week, and the remain volume in 5 days. And i finish the first volume longly not because the volume is too boring. But because too confused.
Recomennded for; all humanity. But doubt all could love this.

Overall; Hakomari/10
The series, for me, has reached a new level of light-novel. The Hakomari. The series is supposed to be displayed in museums. It is just too scarce. And also our grandchildren on the future should read this series.