Due to her husband's work-related stress leading to a forced leave of absence, Yui, a housewife with no prior work experience, begins working in his place. After struggling hard to secure a mid-career hire position, she is assigned to the department handling employee benefits. During training, she discovers her job duties include providing sexual services to male employees to relieve their stress and sexual desires. Unable to quit for her husband's sake, from her very first day on the job, Yui is drenched in the cum of male coworkers and subjected to corporate slave training under the guise of "education," gradually descending into a lewd, submissive flesh toilet who accepts any demand.