Murakami is to handle a presentation for T Company, which is persistently trying to negotiate with him, on behalf of his boss. Hibiki, the person in charge at the other company, is waiting for him in the reception room. She has a beautiful voice, an attractive hipline, and is quite beautiful. Hibiki tells Murakami that she has something to discuss with him, so they meet again the next day. Murakami gets drunk and goes to a hotel with Hibiki. Hibiki then boldly seduces Murakami... From then on, Murakami becomes obsessed with Hibiki. He is unaware that this is a sweet trap for a certain purpose...