Minako, the company president's secretary, flaunts her big tits and thighs in a short skirt to new employee Matsuda, adopting a provocative attitude. Seeking to relieve stress after an all-nighter, she demands squirting orgasms from the president using a vibrator and bullet. Later, she masturbates in the locker room while letting Matsuda peek, deliberately arousing him. Once he's hooked, they escalate to intense cowgirl-position sex in the office. Later, the trio gets drunk at an izakaya paid for by the president, leading to a wild, chaotic threesome right inside the restaurant.