This article is an original female protagonist fanfic based on the first and second seasons of the Japanese animation "Seraph of the End". The male protagonist is of course Fei Niang because he is so good! The heroine's identity is a survivor of a human family that has studied vampires for generations. Later, in order to survive, she voluntarily went to the vampire camp to become a "livestock". The main CP fee is confirmed by her, and the deputy CP Mi You and Crimson are waiting to be determined. Finally, I would like to declare: Little angels who don't like Fei Niang, please don't be gay, thank you for your cooperation~