I read it years ago since it was published in my country.
Unfortunately as the drawings and the plot are intriguing, the fact that it is composed of only two volumes makes it too short to explain how the whole story is owed.
I'm not saying that it had to be as long as Black Bird, that is, of 18 volumes but they could expand and explain the story as it should be.
It had great potential and was wasted, the alleged "villains" are ridiculous given that the explanation is too much like saying "cold", with all the references given it had to at least lengthen me by some other volume to give space to the characters to be able to even grow without haste.