30-year-old Erika Mikami appears in a personal shoot! Off-duty days are spent shopping and doing yoga—she's the perfect image of a Marunouchi office lady. Her serious personality shines through as she sincerely responds to provocative questions with thoughtful answers like "I see, that's how it is." When asked about masturbation experience, she surprisingly confesses, "I've never done it myself..." Intrigued by her words, she begins her very first masturbation session. Though hesitant at first, she gradually starts to feel pleasure—her awkward yet sensual exploration becoming the highlight. Her virgin-like response to self-pleasure becomes irresistible, leading to cruel fingering that sends her into uncontrollable convulsions with intense orgasms. As a thank-you, she performs a vacuum blowjob, but unable to hold back, he immediately penetrates. Overwhelmed by her intense vaginal tightness and huge F-cup breasts with veins visibly protruding, he pleads aloud for release—but she ignores him with a sadistic expression, forcing ejaculation.