I am the madam's errand: The training affair of the president's wife who sways new employees

I joined a company as a new employee, and although I was busy, I was able to do rewarding work and spend a fulfilling life while being touched by my seniors. One day, the manager told me, "There's a job I want you to do," and as instructed I went to the president's office... I can't believe that a woman is making her put on her clothes and riding on top of the man and doing shady acts! What's more, the woman notices my passionate gaze and calls out, "Please come in," and is the wife of our company's president! And what she was told by Mrs. Mariko was the job of being an errandman (?).