Momoko, a former delinquent with a tsundere personality, works at a small local factory where she is notorious for slacking off and her sharp tongue, ranking her at the bottom among the workers. However, the male staff adore her because she secretly lets them put their cocks in her mouth in the smoking area or even allows penetration, revealing her deeply depraved nature. Surprisingly, even the female office worker joins in the debauchery, having sex with young laborers during work hours and competing with Momoko in blowjob contests. The factory has turned into a daily orgy, where Momoko and the office worker entangle with each other in an unrestrained, flesh-filled spectacle.