A gonzo-style amateur encounter featuring a masked gyaru in her early twenties, set during a camping trip. The story follows a junior who's interested in his friend's girlfriend but hasn't made a move yet. They begin talking while both wearing masks, gradually building sexual tension. The conversation turns increasingly dirty, fueling a strong desire to fuck her. Late at night, noticing she's heading to the toilet, the junior deliberately says, "I need to go too," and approaches her. Their dark, intimate exchange creates a strange yet thrilling atmosphere—adding to the allure.