Saki, who works at an underwear manufacturer, was a newcomer when the much senior Akiho Yoshizawa became the team leader and led the new product to great success. Saki admired Yoshizawa and worked hard hoping to be like her someday, and unexpectedly, she was selected as the team leader. However, this personnel decision was a trap set by the company's executives to provide a pretext for sexually harassing female employees... The popular series' fourth installment! A busty slender office lady grabs a chance for promotion by grabbing a dick!!