In a quiet classroom at dusk, Yura Sakura is alone, beginning to masturbate. Dressed in a sailor uniform, she starts by reading aloud from an erotic novel. Her words are sensual and lewd, reaching your ears as if recorded in binaural sound. Growing aroused by her own voice, her breathing turns heavy as she reaches down to touch herself. Gradually, she begins caressing her breasts, then stands up in the middle of the classroom and continues pleasuring herself. Suddenly, footsteps echo from the hallway...