The cool and perfectionist Kojima-san is a career woman who rose to the position of manager in her 20s. I, a half-baked woman, felt uncomfortable around her. I had to go on a business trip with Kojima-san on short notice to fill in for my colleague Sato-san (female)... Even though we ended up sharing a room, she didn't seem to see me as a man at all. However, as soon as we had a toast to celebrate a successful business deal, she became spoiled and defenseless... Excited by the huge difference in their personalities, I pushed her down, and her sensitive body, which had become more sensitive from the alcohol, accepted me and began to desire me even more...