Seraph of the End

Seraph of the End

Available on AnimeLab
In 2012, a man-made virus decimates the global population, sparing only children. Soon, vampires emerge to fill the void, assuming control as supernatural horrors of legend spread across the earth. The vampire overlords force the remnants of humanity beneath the surface, promising safety in exchange for donations of blood.
Starring Yuka Iguchi, Kaito Ishikawa, Miyu Irino