In 2012, the world allegedly comes to an end at the hands of a ... and his friend and fellow orphan Mikaela plotted to escape along with the children in Hyakuya Orphanage. However, this resulted ...

Four years later, Yūichirō Hyakuya and his friends make a daring ... Instead of dying with the rest of his friends, Yūichirō's best friend Mikaela was transformed into a vampire by Krul ...

At the same time, vampires emerged from the world's dark recesses and enslaved mankind. Enter Hyakuya Yuuichirou, a young boy, who along with the rest of the children from his orphanage ...