An 18-yr old girl, whose father was sick and hospitalized, Enters the home of Tonyo, a well known hacker, to become a house helper. Tonyo was always busy with experimenting new software, and of course his hands are full from hacking a company system.He realized that he really needs an experienced maid to do laundry and make food since he has no time to do so. How will things go since the two of them live together as a maid and a master?