From [Aerandria Scans](https://www.mangaupdates.com/groups.html?id=1242): The high school student Aya Shizuku had a normal, peaceful life until one day she received a pocket watch from a person dressed in black. He called her “partner” and told her that the two of them were “vampire hunters” meant to fight the vampires. And then appeared a vampire, targeting Aya...