Ono Rikka and I met at university, and we've been dating for a year. Raised in a single-parent household, she works two part-time jobs to pay her tuition and living expenses. One day, her mother is diagnosed with a serious illness, and to cover the medical costs, Rikka is drawn into a mysterious job listing labeled "maid work." As a result, she begins working as a maid in a wealthy household. Innocent and pure, Rikka cannot resist being used as entertainment for the rich, and gradually she is pulled deeper into their world. Wearing six different maid outfits, she slowly transforms into a sexual slave. She experiences creampie, facial, gangbang, drugged sex, and even fulfills increasingly extreme demands. Rikka is no longer the girl she once was. This is the story of her descent—enslaved by desire, drowning in pleasure.