[The girls who look serious are actually the sexiest!] It's just me and Yamagishi-san from the general affairs department in a deserted office. I thought I didn't like her, but we hit it off over something trivial! When I was secretly drinking in the office after work... her eyes changed and she suddenly kissed me, and we had raw sex in the office! I never knew Yamagishi-san was this lewd...! While the other employees were waiting to come to work, I had an office affair with Yamagishi-san, who has an incredible sex drive, and we had sex over and over again without my wife ever finding out!