A woman with an impeccable reputation, studying accounting at graduate school and working at various places like accounting firms or law offices. Seven Seas Riko was known as someone distant and unapproachable due to her strict image. However, she turns out to be a submissive masochist who enjoys serving others! When asked about her interest in S-things, she confesses that she feels confused because of the contrast between her appearance and her true desires. Overwhelmed by work and unable to think clearly, she decides to explore the world of AV seeking relief in being completely dominated...