As a young man starting his career as a new member of society, he visited the home of his boss, Managing Director Kobayakawa, one evening and was treated to a drink. There, he met the beautiful Mrs. Reiko, the "wife of a director," and felt an improper impulse. A few days later, when he visited again on an errand for the Managing Director, he found himself alone with Mrs. Reiko during the day. His tension and excitement mounted, and unable to hold back, he thrust his rock-hard dick into her "too-tight pussy."