Having an enemy among the senior students of the Faculty of Combat Magic is not a good start to the semester for a potions adept. It’s even worse if you suddenly find yourself in debt to your ill-wisher and are forced to fulfill his order, otherwise you can say goodbye to the dream of a diploma and license. The choice of two evils is obvious. I'll have to brew a demon potion and forget about this blackmailer... Alas, doing the latter turned out to be more difficult than I thought.