Unassuming Japanese OL, Ayumi, finds herself in a compromising situation when she agrees to a friend's dare to audition for AV. With her heart pounding, she steps into the studio, her conservative business attire contrasting with the explicit scene unfolding. She tentatively takes the director's thick, veined shaft into her small, inexperienced mouth, her eyes watering as she struggles to accommodate its length and girth. Her initial hesitance gives way to curiosity, her tongue exploring the unfamiliar terrain as she begins to find a rhythm.