When Mr. Sato, an employee at the world's largest electrical company, is asked by his boss to tutor his only son in exchange for a high-ranking position within the organization, things couldn't have been better. At least, that's what he thought... Little did he know that his prospective student was Ichiro Matsushita, a young boy with the mind of a genius and a terrifying hidden agenda. It doesn't take long for Sato to realize that he is the second home tutor in as many weeks to be sent to teach the little boy. What's even more unnerving is that the previous tutor's whereabouts appear to be a mystery... The little boy's true identity is revealed when he puts Sato under a curse, turning him into a lizard man and making him one of his servants. Little Ichiro Matsushita is none other than "Akuma-kun," a boy genius and master of black magic. His goal? To open the portal between hell and earth, summon forth hell's most powerful demons, and enlist their help in taking over the world!