Mariya Kurauchi, 29 years old, is a businesswoman running five apparel stores. While her career might suggest a wide social network, she's actually dating an ordinary office worker. He's busy with work, so their time together is limited. Mariya has a masochistic personality and quietly expresses her desire to be taken charge of. She dislikes pain, so gradually teasing her with humiliation and pressure suits her best. Observe her reactions gently as she appears nervous at first. Since she openly admits being into submission, she shows no resistance to deep throat—her masturbating with a vibrator while being mouthed is intensely erotic. When her wish—"I want my breasts roughly squeezed until it hurts"—is fulfilled, her response dramatically shifts. Her moans become uncontrollable, her pussy soaks wet, clearly showing pleasure. As the male performer's fingers slide into her slick slit, she gasps, "No, no..." but it's not what she truly means. Completely relaxed in body and mind, Mariya eagerly enjoys everything from giving pleasure to being penetrated. Especially responsive when her breasts are grabbed during intercourse, who would have guessed such a sophisticated entrepreneur hides such a filthy, lustful side beneath her composed exterior?