Owari no Seraph
A virus killed every adult on Earth and left the surviving children easy harvesting for vampires, who herded the remaining humans into underground cities and bled them in exchange for shelter. Yuichiro Hyakuya escapes the cattle pens after his foster family is butchered for trying to do the same, and resurfaces in the human resistance — an army that has weaponized the same magic the vampires use against itself. He swears a private oath to find every vampire who was there that night, and a second one, much later, when he learns his closest friend made it out too.
Seraph of the End: Vampire Reign has 12 episodes.
As of now, Seraph of the End: Vampire Reign has finished.
Seraph of the End: Vampire Reign aired from April 4, 2015 to June 20, 2015.
Seraph of the End: Vampire Reign is a TV series with episodes around 24 minutes long, originally from Japan.
Seraph of the End: Vampire Reign premiered in Spring 2015.