A breach between Earth and the netherworlds has opened up over the city of New York, trapping New Yorkers and creatures from other dimensions in an impenetrable bubble. They've lived together for years, in a world of crazy crime sci-fi sensibilities. Now someone is threatening to sever the bubble, and a group of stylish superhumans is working to keep it from happening. 
 
(Source: Anime News Network)
 
Note: The last episode aired with a runtime of ~46 minutes as opposed to the standard 24 minute long episode.

Episode 1 - Secret Society of the Magic-Sealed City

Episode 2 - After the Phantom Ghost Wagon

Episode 3 - A Game Between Two Worlds

Episode 4 - Blood Line Fever

Episode 5 - The Tremorous Blood Hammer

Episode 6 - Don't Forget to Don't Forget Me

Episode 7 - A No-Holds-Barred Eden

Episode 8 - Z's Longest Day (Part 1)

Episode 9 - Z's Longest Day (Part 2)

Episode 10 - Run! Lunch!! Run!!! / to the end.

Episode 10.5 - Even These Are the Worst and the Best Days Ever

Episode 11 - Paint it Black

Episode 12 - Hello, world

bones

Blood Blockade Battlefront