Momonogi, a new graduate employee who loves her uncle. Manager Ozawa of the department I was assigned to was a big strike. Although it doesn't suit her cute face, she clings closely to Manager Ozawa, whispers, seduces him, and does everything in his power. Ozawa, who had a wife and children, kept refusing to be at the mercy of his subordinate's temptations, but on the fifth Friday night, he succumbed to the temptation and had sex with him. From this day onwards, an extremely chaotic erotic theater between a new girl and an old man begins, which escalates.