Insatiable department manager Yui Hatano controls every aspect of her male employees' sex lives. She locks them in chastity devices until their balls ache, then uses their swollen erections to satisfy herself. Claiming careless, selfish ejaculation deserves punishment in the name of staff development, the voluptuous boss orders endless edging, masturbates in front of them until they are painfully hard, and finishes with a squirting office threesome and orgy.