Needless to say, Aiko, the daughter of the president of the well-known apparel brand "OTO". She lives in a mansion and has many servants, one of whom, Ozawa, has been taking care of Aiko since she was a child. Aiko, who grew up spoiled, had a particularly strong hit against Ozawa, and was always annoyed by Ozawa because she was all selfish. Ozawa, who has been swayed by a younger cheeky little girl for the good of not being able to say back, had exceeded the limit of patience long ago.