In the year 2021, mankind was decimated by the epidemic of Gastrea, a parasitical virus, and is forced to live within Monoliths, which are created from Varanium: a metal that is able to subdue Gastrea. Soon, the "Cursed Children", children born with the Gastrea virus who are able to control it, which gives them superhuman abilities, are discovered. Due to the Gastrea virus' intervention, the Cursed Children could only be female. Civil Securities are formed to specialize fighting against Gastrea, operating with the pair of an Initiator, who are cursed children, and a Promoter, serving to lead the cursed children. Ten years after the epidemic, Rentarō Satomi, a high school student who is also a Promoter in his childhood friend Kisara Tendō's Tendō Civil Security, along with his Initiator Enju Aihara, receives a secret mission to prevent the Tokyo Area's destruction.
I'm at a disadvantage who have read the original manga, but I'll share what I think so far. Fortunately, it seems the first four episodes make up the first arc of this story.
The set up is very similar to the shows that are popular this time around: Monsters overtaking humanity that can only be defeated by some specific mineral, and the people involved in fighting them have a risk of losing their humanity. Fortunately Black Bullet has some things going for it.
The villain sure was an interesting character, and the action is swell. I like how the first episode hits the ground running, and the climax of this 'first arc' is reached nice and quickly.
I'm on the fence on this show. It feels average, but not in a bad way. I'd give it a 6.5/10 or a 7/10. I'd recommend giving the first four episodes a chance if you have the time, but it's a safe bet to say that if you don't like the first episode then this anime is not for you.
In summary: Common plot, but interesting characters and still worth a casual watch.