Kaoru, an F-cup office lady working at a major trading company, is constantly approached by various male employees. She routinely engages in affairs with her department chief during lunch hours. It's commonplace for her to be forced into blowjobs by coworkers. Aggressive penetration by middle-aged employees and frequent threesome experiences involving the company president and restraints have become routine. Though always busy, Kaoru operates under a strange rule: as a special allowance, she is required to constantly provide semen.