Reika, a beautiful married woman with a reputation in the town. Koichi, a neighbor, could not suppress the throbbing of his heart in his chaste appearance for her husband. One day, Koichi, who had injured both of his arms in an accident, was invited to his house to complete procedures with the insurance company that Reika introduced him to. Excited, he headed home, but what he saw there was Reika straddling a man and shaking her hips violently. Koichi leaves in a hurry because of his usual cheerful appearance, but he is invited to dinner by Reika.