Blood Blockade Battlefront (血界戦線 Kekkai Sensen ) is a manga series written and illustrated by Yasuhiro Nightow. It was serialized in Jump SQ.
A sequel titled Blood Blockade Battlefront Back 2 Back was published in Jump.SQ Crown and Jump.SQ Rise.
Kekkai Sensen centers around the crime-fighting organization "Libra" and their battles in Hellsalem's Lot, formerly known as New York City. Hellsalem's Lot was created in a single night when a portal to the "Beyond" opened, and now it is a paranormal melting pot of monsters, magic, and the everyday mundane city life. It's up to Libra to prevent the horrors of this city from spreading to the outside world.
When mild-mannered Leonard Watch arrives in the city, he's inducted into Libra and things spiral out of control from there.
- For Images, go to the Blood Blockade Battlefront Image Gallery.