Two years after I entered the workforce, I went on a day trip with my older Sumi-senpai. - 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 business negotiation with a business partner doesn't go well and he ends up having to stay overnight. - Due to the big festival, we couldn't find a place to stay, so we ended up staying alone in the one empty room we managed to find.