Honeymoon affair trip - last night and first night

Arisu, who works for a major trading company, and his boss, Yuichi, have an affair. They are attracted to each other and their relationships deepen. However, Yuichi, who has a wife and children, always returns home after the affair. The two hadn't spent the same night yet. My first hot spring trip... my first night spent together alone. A man and a woman engage in passionate secret affairs at a hidden inn with a scent of hot spring flowers that has been distant from everyday life.