A new employee M-san who works at a sales office near a certain board district east train station. She wants to get a contract no matter what. Because her performance is poor, she visits a dilapidated house. She feels relieved with the words "It's okay, come in," but before she knows it, she is forced to drink strange medicine and her body is played with. Her head becomes hazy, and she reacts sensitively just by being touched a little. And it's hundreds of times better than regular sex. Even though I've never had anything like this before, the water flows out of my crotch on its own, and I convulse violently. Moreover, the old man's thick and infertile dick is more pleasurable than the loving love-making I've had so far. Looking down from above, it's not me... But once I'm hooked on the magic of aphrodisiacs, I offer my pussy in heat, and my brain juice and erotic juice don't stop. I've never had something so pleasant in my life. A naive 20-year-old woman who is weak to pressure and doesn't know much about the world gets addicted to key sex and breaks down.