Owari no Seraph: Kyuuketsuki Mikaela no Monogatari
終わりのセラフ 吸血鬼ミカエラの物語
The secret hidden in Mikaela's name. The deadly fight with the "human" Crowley, and the encounter with Ferid. The story will uncover their travels. A shocking new series that will move closer to the truth and origin of vampires!
(Source: ANN)