Mizaki, a pure girl who has just arrived from the countryside, has hardly any experience with men. Her experience with anal sex—an adult act—is even more captivating than you might imagine. Dominated by a slightly sadistic man who pulls her tongue, she gradually relaxes from the stimulation, visibly loosening up. Soon, she's told to undress and spread her own ass cheeks. Her pubic hair is untouched, her anus still pink and clearly unused. Without hesitation, fingers are thrust deep inside. She clearly feels it, reacting strongly despite it being her first time. After minimal foreplay, full penetration begins. Though initially uncomfortable, Mizaki slowly starts to feel pleasure. She climaxes in various positions—cowgirl, doggystyle, missionary—stepping boldly into this new world. While preview videos are blurred, the full version is completely uncut.