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 talks with business partners do not go well and they end 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.