My favorite busty AV actress Kurumi Momose (real name: Sato) has joined the company as a junior. A man who wants to monopolize the Jcup blackmails Kurumi on the condition that he stays silent in her company, and she not only takes in her breasts but also cums inside her... As Kurumi's days of extreme vileness continue, her co-workers also learn about Kurumi's true identity and flock to her big boobs, enjoying the pleasures of her AV world.