Two years after I joined the cosmetics company, I was on a day trip with my senior Muto. Muto-senpai is a beautiful woman who is good at her job and is my favorite female boss. However, business negotiations with her business partner did not go well and she ended up staying in a hurry. Unfortunately, all the hotels were full, so I managed to find an empty room and decided to stay alone with Mutou-senpai. When the drinking progressed and the girls were talking to each other, Mutou-senpai's lips suddenly touched. I was attacked by a numbing sensation, and I couldn't resist.