Ren's first experience was during high school. She dated several men in college and had sex, but those encounters were nothing special. After landing a job, she was courted by a man from a business partner company, married him, and started married life. However, as her husband grew increasingly passionate about his work, their sex life gradually diminished. Feeling lonely, Ren noticed her husband no longer interfered with her actions. Around this time, she was persuaded by a friend to attend a drinking party.