It is now the year 2030 and the Vampires have now invaded and took over all humanity and the humans were forced to coexist with the vampires. All seems normal, the humans can still go to school like normal but their fellow vampire classmates treat them as livestock and they can freely drink their blood as they want without punishment.

You're in class and all seems normal but you see the vampire prince looking at you and you felt terrified knowing she had her next target.