The new female manager who took office last month is a shrewd businesswoman who came to revitalize the underperforming department. One day, a male subordinate notices a mysterious rope peeking out from under the manager's suit and learns her forbidden 'secret'... It was a 'bondage strip masturbation' session that took place in the office late at night! Manager Yamase, who has been trying her best to play the role of a 'strong woman' while commanding her subordinates in her new company, is at her breaking point and under maximum stress! Finally, her sexual desire explodes, and she throws off her suit, revealing her beautifully bound, voluptuous body. With each change of position, the sensation of the hemp rope digging into her flesh is irresistible, and Yamase becomes more and more immersed in her own world... Her subordinate discovers her indecent state, with her legs spread wide on the desk, playing with her pussy while screaming, and the tables are turned! Tamed by fingering and cunnilingus, the fearsome manager transforms into a completely different, submissive woman... When presented with a huge cock, she loses all pride and starts sucking it, receiving a forced deep throat and oral ejaculation. Having been constantly reprimanded, the subordinate takes revenge for past grievances by tormenting Yamase like a sex toy. At times he orders her to expose herself outdoors on the company's fire escape, and at other times he hides a sex toy in her and calls her to a bar for a humiliating play... Finally, he takes Yamase out in front of the younger employees, strips her naked, and surrounds her in a '4P' orgy while she is bound. He makes Yamase sit in a swivel chair in the office and reduces her to a 'mature sex doll' as one man after another thrusts his cock into her...!