Kura is a very unlucky blood demon who emerged from a mass of resentment and rage during a 15th-century war. Both God and Satan feared her existence, so one cursed her with bad luck and the other sealed her powers. From that moment on, she merely existed, but she gradually developed an interest in “nerd” culture, so she decided to devote herself to drawing in order to convey her feelings and share the story ideas she has—until the day she recovers what was taken from her.