"Hey, don't you feel like Hitoosu erotic services have been increasing lately...?"
In the land of succubi, which has built an advanced civilized society, the succubus Muero works as an office lady and spends her days accumulating various kinds of stress, such as reprimands from her boss and having to be considerate of her male subordinates. One day, at a drinking party with her female coworkers, she learns of the existence of an adult delivery service aimed at succubi. Its staff consists of human males (commonly known as "Hitoosu") who came from the human world to work abroad. Muero, who had been repressing her sexual urges as a succubus, gathers her courage and decides to take the plunge by calling a Hitoosu service named "Big Banana".
Let the 60 minutes of pure glory begin between a Hitoosu and a world-weary succubus whose desires burn within!