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. Her feelings for her senior, who is married, are unlikely to come true, but the trip alone made her heart pound. However, a business meeting with a business partner drags on and he misses his Shinkansen ride home. I decided to stay overnight suddenly.