A happy day with a big breasted female director

A married and hidden guy in this movie has a great business trip with his female colleague Tsumugi. They had an affair on the first night of their stay at the hotel. Tsumugi did not expect that behind the gentle face was a not so light lust. She even actively seduced her colleague so that he would fall in love with her. They hung around each other all night and until the next day and then missed an important meeting.