A young man from modern Japan finds himself reborn into his favorite fantasy novel, The Tale of the Rhinana Kingdom. To his dismay, he has not become the hero but Absolute Ark, the story's notorious villainous marquis. Aware that his character is destined to be overthrown and killed by the hero, he resolves to break free from that predetermined fate. Armed with his knowledge of the original plot and the powerful skill Absolute Evil, he embarks on a path to secure his own future by fully embracing his role as a villain—using cunning, charisma, and ruthless tactics to gather loyal subordinates, outmaneuver his enemies, and reshape the kingdom's political landscape. The story follows his rise as he defies the expected narrative, turning the heroine and other key figures away from the hero's side and forcing the world to bend to his will.