I work at an outdoor shop, and I was on a day trip with my older senpai, Rukawa. She was in love with her senior, who was beautiful, good at work, and the ideal boss that everyone envied. My feelings for my senior, who is married, are unlikely to come true, but I couldn't stop my heart pounding as we went on a business trip together. However, a long business meeting with a business partner causes him to miss his Shinkansen trip home. I decided to stay overnight suddenly.