Very similar to Tokyo Ghoul in a lot of ways. It was subtle but it did manage to achieve it's own tale within it's narrative, which kept me interested.
Overall, had a lot of potential but still couldn't quite deliver in the end.
PROS:
+ Relationship between Anzai and Tsukasa was the strongest facet of the series. It was down-to-earth and mature.
+ Interesting reactions within the society and how the force arranges protocol with the 'devils.' I found it to be more towards the lenient side of things unlike Tokyo Ghoul, which was an interesting spin.
CONS:
- First episode was poor. Introduction could've been a lot stronger.
- Cliché vampire story and characters.
- Wasn't the worst ending, but the climax was rushed and bland.
- Too many Tokyo Ghoul concepts.
OVERALL:
Fairly ordinary but had action, fondness and intimacy. Could of went on for a longer period but understandable due to budget and marketing. Probably recommend the Manga to continue unsatisfying loose ends.