The story talks about Ryo a non-pachinko loser, who works part-time and survives in life in a failed way. One day, he finds himself in the street with a heavy box, thinking he had some good that he could sell and win something, then take her to his house, open an Erika, a maidroid. Maidroid were created for the purpose of serving their millionaire masters, since she said that Ryo was their master and she would do anything for him, Ryo has a brilliant idea of making money for her, with the feeling of speaking louder and something more Besides Outbreak of master and servant.