Despite her refined, well-bred, and calm aura, rookie gravure idol Mari Kosaka possesses a captivating sexiness highlighted by her beauty mark. In a shocking twist for her debut work, she arrives in full "over-the-top mode"! While she initially seemed overwhelmed by the intense direction of her first shoot, Mari's adorable effort to respond with a smile is simply too cute! Then, her hidden true nature suddenly emerges, leaving the staff in constant shock, wondering, "Is she actually a total masochist?!" Despite her pure appearance, once ignited, she lets out an endless stream of uninhibited, erotic reactions—the gap is unstoppable! Beyond the nervousness and shyness, her "pleasure switch" suddenly blooms! At the end, when a vibrating toy is pressed against her while she's unable to move, she completely transforms! It's shocking to see her reach climax repeatedly, panting in a high-pitched voice, "Ah, ah, ah, no, kyaa!" Mari Kosaka's vivid debut, where she boldly pushed through the over-the-top direction until the very end! You absolutely cannot miss this high-impact "Over-the-Top Debut" where the gap between her pure image and aggressive passion explodes!