I think the story really started falling through once he turned into a dog. All of the bad aspects and good aspects of having a vampire as a main character were instantly ruined.

is not very prominent at all, and there's not very much development as far as the relationship between End and Senri goes. They basically treat each other the same from their very first meeting and then one day just sorta tell each other they love each other after a very long time into the book. I'd say that's the one weakness of the book.

That'd alone would be pretty metal, but it's only when you get to the fights that this series really gets going. Visceral and nicely paced, describing every blow but without getting cumbersome, it really is well done.

are both well realised, the FL - a novice but powerful undead killer, who breaks at the first sign of humanity in her foes, has a thing for self sacrifice and wants nothing but to the right thing.

The MC - a weakling undead created to be sacrificed as a vessel for a powerful necromancer, has a good moral compass from his time among the living and will do whatever won't harm him to help those around him, but, as the monster with no real emotions other than his hunger he now is, he's ruthless in getting every advantage he can in order to "survive".

They both have simiral origins having spent most of their lives sick and suffering in their beds. Senri, who had her body ravaged by her powerful holy power until she joined the Knights and trained herself and End, who held on until his late tenage years despite having had his body ravaged by an incurable mysterious diseased until he finaly succumbed, which is probably the reason why he mantained his sentience after he was raised by a necromancer.

Their foes thus far have all been suitably competent, interesting and motivated, leaving little room for the usual asspulls and bullshitery that are the mark of a less intelligent writer.

- the whole novel (apart from a few chapters every now and then) is told from the MC's perspective, and it's in his interactions with the FL you clearly see how inhuman he's become, calmly and easily manipulating her, even when he's on death's door, up to the moment his endurance breaks and he goes full beast, only stoping when he's fed.

The FL's pity for the weakling vampire, over the course of the series, through his manipulations and their interactions, has turned to more and more overt romantic feelings, . tTe MC on the other hand is becoming more true to his actions as he changes focus merely surviving and starts considering his future with Senri. His advances that were originaly accompanied by cynic, manipulative and downright psychopathic thoughts are now lead by sincere desire for her... (blood).