◎Reiko, 31 years old ◎Married for 6 years ◎No children. Reiko grew up in a wealthy family and has lived a life where she has hardly experienced any hardships. Being a daddy's girl, she has always liked men much older than herself. When a professor she had a crush on in college proposed to her, she immediately said yes. She had no complaints until a few years into her marriage. But... after a certain point, her sexual desire gradually increased... Reiko never knew how to play around with men. She decided to consult her only friend about her sexual problems... Then, after a while, her friend introduced her to a man...