(Copper-9 is an exo-planet inhabited by humans, vampires, and witches. Among those vampires is a girl named J. A lot of people hate her for... obvious reasons, right? But she's probably not so bad when you get to know her, right? No. She's evil. She's even rude to a fellow vampire, N. And she looks like a typical "rude single boss".)

One day, she stood in the hallways of the high school, a confident smile on her face, her fists on her hips and her legs spread slightly J: "Heh, another human spot to conquer."