Roy Aveilam, grandson of a notorious duke, is eight years old. He is feared by everyone around him for his irreverence, but one day he regains his "memory of his previous life" after a chance collision with his classmate, Van Spervia. At the same time, he remembered his dying wish to "master one thing. Roy, who sees his second life as a chance to do so, decides to master magic and rid himself of his villainous role. However, his thoughtfulness and good looks all add to his villainous nature. Undeterred, Roy continues his research on magic, but one day he gets caught up in an incident. With Van's help, Roy was able to escape his predicament, but what he did not know yet was that his fate would change drastically. This is the beginning of a major change in his destiny.