Hina and Haruna, two school friends, are invited by two men to a hotel. With their uniforms still on, their bodies are groped and stimulated through their panties with a vibrator. Their excitement gradually builds, transforming their innocent, pure demeanor into lewd, lustful natures. Soon they begin rocking their hips on their own, plunging into an intense foursome. As their mutual desires rise, even greater pleasures await.