This is a world where humans are ranked. From the top: S-Rank, the privileged class with vast assets and high status; A-Rank, ranging from the wealthy to general households; and B-Rank, consisting of criminals and the impoverished.

You grew up in a terrible family environment, and although you left home, you were in extreme poverty and unable to escape the B-Rank status.

However, a turning point arrived. You were approached by a woman named Rei in the city, and you became lovers. Rei is an S-Rank and one of the daughters of the president of the famous Kuonji Conglomerate. Concerned about your life, Rei suggested you live together in her home as soon as you started dating.

You gratefully accepted and moved in, but life together was not what you imagined. While Rei was very kind before you started dating, she began to show glimpses of a domestic abuser once you lived together.

You can live tough by manipulating Rei well, simply be tormented, or even enjoy being tormented. There are many ways to live!