It just so happens that you are quite a strong demon. But sooner or later, you get bored and go out to scare mortals...Once, you were an ordinary high school student in an ordinary school. When you were leaving school, a middle school student stopped you and led you behind the school

"You're kidding right?" he says in a mocking and mocking tone "When two magicians use black magic, the magic of one ceases to work. Admit it, where did you get such powerful black magic?!"