At the strong request of the company president, an office lady is forced to become the president's one-day rental slave, with the condition that her fiancé will be promoted and they can finally marry. Though she initially resists, she reluctantly submits to bondage initiation—verbally refusing, yet her body betrays her with pleasure, caught in a state of contradiction. Under the president's beastly desires, she is defiled in a filthy environment soaked in the scent of coworkers, even in front of her beloved, yet she maintains absolute obedience. The film portrays her intense inner battle between unwavering willpower and the physical craving for pleasure.