Mr. and Mrs. Kurosaki have been married for five years and run a small insurance agency. They value their relationships with both individual and corporate clients, and handle even the smallest cases with sincerity and dedication. One day, during a business meeting with a corporate client, the person in charge invited the couple out for a drink. Since the client is very important, the couple is happy to join them, but... they find themselves attracted by the man's lustful gaze...