The hero Morimia Key owed a big debt to the owner of the sex club, and now he is forced to work as the manager of one beautiful girl (Miku). Miku took on a huge debt of parents, and decided to sell her body to the sex industry as a "girl for entertainment." The hero was given a sad order to raise from her a first-class female sex worker. But deep inside, what kind of ending waits for the two who met in such circumstances?