At first, i wasn't reading the manga seriously; thiking that it was just another dark story but the protagonist was a very interesting character.
After reading all available chapters, i think that it was a philosophical story. It is philosophical in a way that it reveals the ugly side of human nature. One that we, as human beings, strive hard to conceal.

I like the manga because it presents a new kind of heroine. One that everyone hates and one that is still being hated as the plot thickens.
The character, although i doubt there really is someone that oblivous and insensitive towards the feelings of others, was for me, a representation of all the humans fear.

The reactions of everyone around Maria, the protagonist, is very realistic and makes one wonder if one had been in the same position, would one react the same way?