I hardly know where to start with this.
First of all.
The MC is waaay too gary stu. He is the lord of darkness and the ultimate whiteknight.
He is what you would get if you turned Don Quixote into a vampire.
He helps everyone, cures the sick, turns enemies into allies, everyone loves and worships him, all the women want him, he is immortal, can read minds, telekinesis, prophecy, u name it.. 'My Angel' does it or have it.
And if you are thinking that he might be a bit of a shady character because of the fangs and all, you would be wrong. 'My angel' only kills in selfdefense or those who wants to die, the fangs are pretty much ornamental.
He is much more a Jesus character than a Dracula.
Im not saying such a character cant work in a fantasy story, but you will have to have a really good supporting cast to make up for the one-dimensional main character.
I wont spoil you completely, but lets just say this isnt the sort of series you stick with because of the side-characters - they get old pretty quick.
Another way to make up for the MC could be a really interesting and well balanced and thought out plot, but this seemed meandering through most of it and the ending was just completely random and weird.
This feels like it falls under the escapism tag, and as such i think it does it's job fairly good, despite its flaws.
It does entertain, gives you some feel good moments and i never felt it was boring as such, despite realizing the story was going all over the place and nowhere at the same time.