35-year-old Mai has been divorced once and has one child. The child was born from a relationship with a former boyfriend who was a teacher at ●● High School, though they never married. She became pregnant and gave birth after graduation, later marrying another man. However, concerned for her child's safety, she divorced her husband. Her last sexual experience was ten years ago, and she hasn't had sex since. After the divorce, she devoted herself entirely to raising her child, never dating other men, and relieved herself through masturbation about three times a month.