My name is Cain. I'm weaker than 99% of mages and can't cast spells. My whole family died in a monstrous ritual, arranged by the sorcerer emperor, whose power surpasses the gods. My whole life is the road of hopeless revenge on a narcissistic tyrant. But everything changes when I manage to enter the most prestigious magic academy, where I received a grimoire that can turn reality into a game. My current strength is a dozen points, the strength of the emperor is tens of millions. Who will win this bloody game? Artful magic or tenacity of mediocrity?