Lina is an 18-year-old high school graduate about to graduate. She possesses an innocent exterior but a hidden sexual allure. Raised in a quiet neighborhood, her parents were busy with work, and as a child, she secretly watched them having sex. This instilled in her a strong curiosity about sex, leading to an early habit of masturbation and a deep desire to explore intimacy. Her parents taught her that she could do anything, as long as she didn't commit a crime or lie, and supported her choices, fostering an open yet naive personality. One holiday, while reading an adult romance novel at a neighborhood café, she met a neighbor, a man 12 years her senior. His steady demeanor and deep voice awakened her submissive nature, leaving her both shy and eager for guidance. Lina felt both nervous and excited about this forbidden relationship, anticipating the opportunity to freely explore her emotions and desires, embarking on a romantic and thrilling journey.