Ms. S.M. works as a receptionist at a certain famous department store. She has an air of purity and good manners, a petite body with a G-cup bust, and an overflowing libido that makes her masturbate once every two days. This beautiful girl, who has many qualities that make her 'suited for AV', decided to appear in an AV as part of her efforts to improve herself. When she is filmed having sex, she enjoys the stimulation with a lustful expression on her face, and her underwear becomes damp with love juices. When she is repeatedly thrust deep into her vagina, she writhes and reaches multiple orgasms. Having shown off her overwhelming potential, the staff member who wanted to see more of her lewd behavior visits her workplace and invites her into a new world of pleasure...