I work at an advertising agency and am a loser salaryman who is always chasing monthly quotas. I have no dreams or hopes in my job, but... I have one thing to look forward to. It's gazing at Kurokawa-san's ass, who always wears a short skirt, from afar. Then, I ended up working overtime late into the night alone with Kurokawa-san. Even though she's a married woman, she always wears skirts like that, so she's bound to be sexually frustrated... My sanity was gone due to the stress of my work and my carnal desire for Kurokawa-san.